pgfqe6ch8/app/helpers/application_helper.rb

# encoding: utf-8
#
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'forwardable'
require 'cgi'
require  'iconv'
module ApplicationHelper
  include Redmine::WikiFormatting::Macros::Definitions
  include Redmine::I18n
  include GravatarHelper::PublicMethods
  include Redmine::Pagination::Helper
  include AvatarHelper
  ## added by william
  include PraiseTreadHelper
  include CoursesHelper

  extend Forwardable
  def_delegators :wiki_helper, :wikitoolbar_for, :heads_for_wiki_formatter

  # 课堂相关controller
  def course_controller
    ["courses", "homework_common", "student_work", "exercise", "poll", "boards", "messages", "graduation_topics", "graduation_tasks",
    "graduation_works", "files"]
  end

  # 实训课程相关controller
  def subjects_controller
    ["subjects", "stages"]
  end

  # 实训路径相关controller
  def shixuns_controller
    ["shixuns", "challenges", "myshixuns", "games"]
  end

  # 工程认证相关controller
  def ecs_controller
    ["ecs", "ec_courses", "ec_course_evaluations", "ec_course_supports", "ec_course_targets", "ec_graduation_requirements",
     "ec_major_schools", "ec_majors", "ec_years"]
  end

  def exercise_bank_json_data exercises
    exercises.map do |exercise|
      exercise_path = exercise_bank_path(exercise)
      course_list = exercise.course_list.name
      user_name = exercise.user.show_real_name
      user_path = user_path(exercise.user)
      exercise.attributes.dup.except("description", "is_public", "quotes", "container_id", "container_type", "created_at", "updated_at").merge({
                                                                                                                                                  user_name: user_name,
                                                                                                                                                  user_path: user_path,
                                                                                                                                                  course_list: course_list,
                                                                                                                                                  exercise_path: exercise_path
                                                                                                                                              })
    end
  end

  def ac_pass?(standard_value, real_value)
    standard_value && real_value && real_value > standard_value ? "达成" : "未达成"
  end

  def ec_pass?(standard_value, real_value)
    standard_value && real_value && real_value > standard_value ? 1 : 0
  end

  # 工程认证删除关联课堂
  def delete_course_correlation_ec_course_evaluations ec_course
    ec_course_evaluations = ec_course.ec_course_evaluations.where(:is_course_type => true)
    ec_course_evaluations.destroy_all if ec_course_evaluations
  end

  def sync_ec_year_student_score ec_subitem, ce, year_students, students, works, position=1
    year_students.each do |year_student|
      if students.map(&:id).include?(year_student.id)
        work = works.where(:user_id => students.select{|s| s.id == year_student.id}[0].try(:user_id)).first
        score = work.respond_to?(:work_score) ? work.try(:work_score) : work.try(:score)
      else
        score = 0
      end
      ec_subitem.ec_student_achievements << EcStudentAchievement.new(:ec_year_student_id => year_student.id, :student_number => year_student.student_id,
                                                                     :student_name => year_student.name, :score => score.to_f,
                                                                     :position => position, :ec_course_evaluation_id => ce.id)
      Rails.logger.info("############work_score:#{score}")
    end
  end

  # 同步在线课堂的考核标准和考核分项
  # ec_course: 工程认证的课程
  # course： 关联的在线课堂
  def sync_course_correlation_ec_course_evaluations ec_course, course
    # 先删除之前的关联数据
    delete_course_correlation_ec_course_evaluations ec_course

    students = EcYearStudent.find_by_sql("SELECT eys.id, eys.student_id, eys.name, uxe.user_id FROM ec_year_students eys JOIN
              (SELECT ue.student_id, ue.user_id FROM user_extensions ue JOIN students_for_courses sfc ON ue.`user_id` = sfc.`student_id`
              WHERE sfc.`course_id` = #{course.id})uxe ON eys.student_id = uxe.student_id WHERE eys.ec_year_id = #{ec_course.ec_year_id}")

    year_students = ec_course.ec_year.ec_year_students

    # 实训作业模块
    shixun_models = course.homework_commons.where("homework_type = 4 and publish_time < '#{Time.now}'")
    unless shixun_models.blank?
      ce = EcCourseEvaluation.create(:name => "实训作业", :evluation_count => 1, :status => 2, :ec_course_id => ec_course.id, :is_course_type => true)
      shixun_models.each do |shixun|
        ec_subitem = EcCourseEvaluationSubitem.create(:name => shixun.name, :ec_course_evaluation_id => ce.id)

        sync_ec_year_student_score ec_subitem, ce, year_students, students, shixun.student_works
      end
    end

    # 普通作业模块
    common_models = course.homework_commons.where("homework_type = 1 and publish_time < '#{Time.now}'")
    unless common_models.blank?
      ce = EcCourseEvaluation.create(:name => "普通作业", :evluation_count => 1, :status => 2, :ec_course_id => ec_course.id, :is_course_type => true)
      common_models.each do |common|
        ec_subitem = EcCourseEvaluationSubitem.create(:name => common.name, :ec_course_evaluation_id => ce.id)

        sync_ec_year_student_score ec_subitem, ce, year_students, students, common.student_works
      end
    end

    # 分组作业模块
    group_models = course.homework_commons.where("homework_type = 3 and publish_time < '#{Time.now}'")
    unless group_models.blank?
      ce = EcCourseEvaluation.create(:name => "分组作业", :evluation_count => 1, :status => 2, :ec_course_id => ec_course.id, :is_course_type => true)
      group_models.each do |group|
        ec_subitem = EcCourseEvaluationSubitem.create(:name => group.name, :ec_course_evaluation_id => ce.id)

        sync_ec_year_student_score ec_subitem, ce, year_students, students, group.student_works
      end
    end

    # 试卷模块
    exercise_models = course.exercises.where("exercise_status > 1")
    unless exercise_models.blank?
      ce = EcCourseEvaluation.create(:name => "试卷", :evluation_count => 1, :status => 2, :ec_course_id => ec_course.id, :is_course_type => true)
      exercise_models.each do |exercise|
        ec_subitem = EcCourseEvaluationSubitem.create(:name => exercise.exercise_name, :ec_course_evaluation_id => ce.id)

        sync_ec_year_student_score ec_subitem, ce, year_students, students, exercise.exercise_users
      end
    end

    # 毕设任务模块
    task_models = course.graduation_tasks.where("publish_time < '#{Time.now}'")
    unless task_models.blank?
      ce = EcCourseEvaluation.create(:name => "毕设任务", :evluation_count => task_models.size, :status => 1, :ec_course_id => ec_course.id, :is_course_type => true)
      task_models.each_with_index do |task, index|
        ec_subitem = EcCourseEvaluationSubitem.create(:name => task.name, :ec_course_evaluation_id => ce.id)

        sync_ec_year_student_score ec_subitem, ce, year_students, students, task.graduation_works, index + 1
      end
    end
  end

    # 选用实训的学校情况
  def school_user_detail shixun
    user_ids = shixun.myshixuns.pluck(:user_id)
    schools = School.where(:id => UserExtensions.where(:user_id => user_ids).pluck(:school_id))
    school_size = schools.size
    str = school_size > 0 ? "#{schools.limit(2).map(&:name).join("、")}等 #{school_size}所" : "0所"
  end

  def shixun_json_data shixuns
    shixuns.map do |shixun|
      school_detail = school_user_detail shixun
      preference = shixun.shixun_preference
      shixun_path = shixun_path(shixun)
      shixun.attributes.dup.merge({
                                      school_detail: school_detail,
                                      preference: preference,
                                      shixun_path: shixun_path
                                  })
    end
  end

  # 分班
  def member_group_name members, user_id
    member = members.where(:user_id => user_id).first
    group_name = member.try(:course_group_id).to_i == 0 ? '未分班' : member.course_group.name
  end

  # 分班
  def new_member_group_name course_id, user_id
    group_id = Member.where(:course_id => course_id, :user_id => user_id).pluck(:course_group_id).first
    group_id == 0 ? '未分班' : CourseGroup.where(:id => group_id).pluck(:name).first
  end

  # 分班id
  def member_group_id members, user_id
    member = members.where(:user_id => user_id).first
    group_id = member.try(:course_group_id).to_i
  end

  # 推荐实训
  def recommend_shixun shixun
    shixun_id = ShixunTagRepertoire.where("tag_repertoire_id = #{shixun.tag_repertoires.first.present? ? shixun.tag_repertoires.first.try(:id) : 0} and shixun_id != #{shixun.id}").map(&:shixun_id)
    shixuns = Shixun.select([:id, :name, :user_id, :status, :myshixuns_count, :trainee, :identifier]).where(:id => shixun_id, :status => 2, :hidden => 0).order("myshixuns_count desc").limit(3)
    if shixuns.size < 3
      ids = shixuns.size == 0 ? "(-1)" : "(" + shixuns.map(&:id).join(',') + ")"
      hot_shixuns = Shixun.select([:id, :name, :user_id, :status, :myshixuns_count, :trainee, :identifier]).where("status = 2 and hidden = 0 and id not in #{ids}").order("myshixuns_count desc").limit(3-shixuns.size)
      return shixuns + hot_shixuns
    else
      return shixuns
    end
  end

  # 用户获取的技能标签
  def user_get_tags challenge_ids, user=User.current
    tags = ChallengeTag.where(:challenge_id => user.games.where(:challenge_id => challenge_ids, :status => 2).pluck(:challenge_id)).pluck(:name).uniq
    return tags
  end

  # 所属路径
  def belongto_path shixun
    Subject.where(:id => shixun.stage_shixuns.map(&:subject_id), :hidden => 0).limit(2)
  end

  # 已授权老师加入示例课堂
  def join_ex_course user
    course = Course.where(:id => 1309).first
    if course
      if course.members.where(:user_id => user.id).empty?
        member = Member.new(:role_ids => [9], :user_id => user.id)
        course.members << member
        Tiding.create(:user_id => user.id, :trigger_user_id => 1, :container_id => course.id, :container_type => 'TeacherJoinCourse', :belong_container_id => course.id, :belong_container_type => "Course", :tiding_type => "System", :extra => "9")
      end
    end
  end

# 成员身份
  def member_zh_role member
    role = ""
    if member.roles.first
      case member.roles.first.id
        when 3
          role = "管理人员"
        when 4
          role = "开发人员"
        when 5
          role = "报告人员"
      end
    end
  end

  def container_limit mirror_repositories
    container = []
    mirror_repositories.each do |mr|
      if mr.name.present?
        container << {:image => mr.name, :cpuLimit => mr.cpu_limit, :memoryLimit =>  "#{mr.memory_limit}M", :type => mr.try(:main_type) == "1" ? "main" : "sub"}
      end
    end
    return container.to_json
  end

  # 实训作品列表的提交状态
  def list_work_status work, homework, member
    if work.work_status == 0
      str = "未提交"
    else
      if work.compelete_status == 0
        setting_time = homework_group_setting homework, member.try(:course_group_id)
        end_time = setting_time.end_time.present? ? setting_time.end_time : homework.end_time
        if end_time > Time.now || (homework.allow_late && !homework.course.is_end)
          str = "正在提交"
        else
          str = "延时提交"
        end
      else
        if work.work_status == 1
          str = "按时提交"
        else
          str = "延时提交"
        end
      end
    end
    str
  end

  # 试卷、问卷提交状态
  def ex_poll_work_status status
    str = ""
    case status
      when 0
        str = "未提交"
      when 1
        str = "<span class='color-green'>按时提交</span>"
      when 2
        str = "<span class='color-red'>延时提交</span>"
    end
    str
  end

  #传入分数，获取对应颜色
  def score_color score
    if score
      color = score >= 90 ? "color-red" : "color-green"
    else
      color = "color-grey"
    end
    color
  end

  # 获取两断时间的日期差
  def time_between_days t1, t2
    Date.parse(t1.to_s) - Date.parse(t2.to_s) if t1.present? && t2.present?
  end

  def update_valuate_time game_id, column
    record = EvaluateRecord.where(:game_id => game_id).first
    if record
      consume_time = format("%.2f",  (Time.now.to_f - record.created_at.to_f)).to_f
      if column == "file_update"
        record.update_attributes!(:file_update => consume_time)
      elsif column == "pull"
        record.update_attributes!(:consume_time => consume_time)
      elsif column == "create_pod"
        record.update_attributes!(:create_pod => consume_time)
      elsif column == "pod_execute"
        record.update_attributes!(:pod_execute => consume_time)
      end
    end
  end

  # TPM查看权限
  # result一般为页面权限
  def shixun_view_allow shixun, result = nil
    if params[:openi].to_i == 1
      result ? false : true
    else
      if User.current.manager_of_shixun?(shixun)
        result ? false : true
      else
        if shixun.status == 0 || (shixun.use_scope == 1 && !shixun.schools.map(&:name).include?(User.current.school_name))
          result ? true : (render_403)
        end
      end
    end
  end

  # 判断TPM的代码是否被修改了
  # 判断依据是看tpm的最新提交记录和tpi数据库中存储的commit_id是否一致
  def repository_is_modified myshixun, shixun_gpid
    g = Gitlab.client
    myshixun_commit_id = myshixun.commit_id
    if myshixun_commit_id.blank?
      myshixun_commit_id = g.commits(myshixun.gpid).last.try(:id)
      myshixun.update_column(:commit_id, myshixun_commit_id)
    end
    shixun_commit_id = g.commits(shixun_gpid).first.try(:id)
    Rails.logger.warn("###############shixun_commit_id is #{shixun_commit_id}")
    Rails.logger.warn("###############myshixun_commit_id is #{myshixun.commit_id}")
    result = myshixun_commit_id != shixun_commit_id ? true :false
    return result
  end

  # 定义当前关卡是否有权开启下一关
  # :实训若发布了，必须通过当前关卡才能查看下一关
  # :未发布的实训，除了最后一关，其它的关卡都可以进入下一关
  def show_next_stage?(game, shixun_status)
    if game.is_final_game? || ([2,3].include?(shixun_status.to_i) && game.try(:status) != 2)
      false
    else
      true
    end
  end

  # 适用与已经用url_safe编码后，回调字符串形式
  def tran_base64_decode64 str
    if str.blank?
      str
    else
      s_size = str.size % 4
      if s_size != 0
        str += "=" * (4 - s_size)
      end
      Base64.decode64(str.tr("-_", "+/")).force_encoding("utf-8")
    end
  end

  def challenge_path path
    cha_path = path.present? ? path.split("；") : []
    cha_path = cha_path.reject(&:blank?)[0].try(:strip)
    cha_path
  end

  def open_webssh
    # 如果我webssh类型, 开启webssh
    jenkins_shixuns = Redmine::Configuration['jenkins_shixuns']
    uri = URI("#{jenkins_shixuns}/jenkins-exec/webssh/getConnectInfo")
    user_id = User.current.id
    params = {userID:user_id}
    res = uri_exec uri, params
    return [host, port, username, password]
  end

  # 中间层启动那种语言容器的类型
  # language 语言 exec_path 需要编译的文件路径
  def post_tomcat_language language, exec_path
    if language == "Html" && !exec_path.blank?
      case exec_path.split(".")[1].downcase
        when "c"
          "C"
        when "cpp"
          'C++'
        when "py"
          'Python2.7'
        else
          "Java"
      end
    elsif exec_path.blank?
      "Java"
    else
      language
    end
  end

  def only_publish_game shixun, type
    shixun_tomcat = Redmine::Configuration['shixun_tomcat']
    gameInfo = shixun.gameInfo
    uri ="#{shixun_tomcat}/bridge/game/publishGame"
    params = {:gameInfo => "#{gameInfo}"}
    logger.info("%%%%%%%%%%%%params is #{params}")
    res = uri_exec uri, params
    if res && res['code'].to_i != 0
      raise("实训云平台繁忙（繁忙等级：90）")
    end
  end

  def publish_game_and_tpimodify myshixun, type
    shixun_tomcat = Redmine::Configuration['shixun_tomcat']
    git_myshixun_url = gitlab_url myshixun
    git_myshixun_url = Base64.urlsafe_encode64(git_myshixun_url)
    params = {tpiID: "#{myshixun.try(:id)}", :tpiGitURL => "#{git_myshixun_url}", :tpmID => "#{myshixun.shixun.try(:id)}"}
    uri ="#{shixun_tomcat}/bridge/game/resetTpiScript"
    params = {:gameInfo => "#{gameInfo}"}
    logger.info("%%%%%%%%%%%%params is #{params}")
    res = uri_exec uri, params
    if res && res['code'].to_i != 0
      raise("实训云平台繁忙（繁忙等级：98）")
    end
  end

  ## 若实训关卡位置，关卡数等信息发生变化则需要修改脚本内容
  def modify_shixun_script shixun, script
    if script.present?
      source_class_name = []
      challenge_program_name = []
      shixun.challenges.map(&:exec_path).each do |exec_path|
        challenge_program_name << "\"#{exec_path}\""
        if shixun.mirror_name.try(:first) == "Java"
          if exec_path.nil? || exec_path.split("src/")[1].nil?
            source = "\"\""
          else
            source = "\"#{exec_path.split("src/")[1].split(".java")[0]}\""
          end
          source_class_name << source.gsub("/", ".") if source.present?
        elsif shixun.mirror_name.try(:first) == "C#"
          if exec_path.nil? || exec_path.split(".")[1].nil?
            source = "\"\""
          else
            source = "\"#{exec_path.split(".")[0]}.exe\""
          end
          source_class_name << source if source.present?
        end
      end
      script = if script.include?("sourceClassName") && script.include?("challengeProgramName")
                 script.gsub(/challengeProgramNames=\(.*\)/,"challengeProgramNames=\(#{challenge_program_name.reject(&:blank?).join(" ")}\)").gsub(/sourceClassNames=\(.*\)/, "sourceClassNames=\(#{source_class_name.reject(&:blank?).join(" ")}\)")
               else
                 script.gsub(/challengeProgramNames=\(.*\)/,"challengeProgramNames=\(#{challenge_program_name.reject(&:blank?).join(" ")}\)").gsub(/sourceClassNames=\(.*\)/, "sourceClassNames=\(#{challenge_program_name.reject(&:blank?).join(" ")}\)")
               end
    end
    return script
    #shixun.update_column(:evaluate_script, script)
  end

  # 若实训有更改，则修改已发不实训的标记为已更改
  # shixun_modifies表中1表示已更改，进入myshixun需要强制重置，0表示没有修改
  # type 0:表示已经是最新的了；1：表示已经有修改
  # res返回结果0表示正确，-1表示有异常
  def add_shixun_modify_status shixun, type
    shixun_tomcat = Redmine::Configuration['shixun_tomcat']
    gameInfo = shixun.gameInfo
    uri ="#{shixun_tomcat}/bridge/game/publishGame"
    params = {:gameInfo => "#{gameInfo}"}
    logger.info("%%%%%%%%%%%%params is #{params}")
    res = uri_exec uri, params
    if res && res['code'].to_i != 0
      raise("实训云平台繁忙（繁忙等级：90）")
    end
  end

  # 判断实训的路径、language是否更改，如果修改在TPI中需要重置脚本
  # 目前为止，container为challenge和game类型
  # 改工作必须在challenge或者game保存后执行
  # type 1：表示既需要提示又需要更新脚本的，0：表示仅仅需要提示
  def should_modify_myshixun_script shixun, type
    if type == 1
      shixun.update_column(:reset_time, shixun.try(:updated_at))
    else
      shixun.update_column(:modify_time, shixun.try(:updated_at))
    end
  end

  def shixun_modify_status_publish shixun, type
    shixun_tomcat = Redmine::Configuration['shixun_tomcat']
    # 更新测试集
    gameInfo = shixun.gameInfo
    uri ="#{shixun_tomcat}/bridge/game/publishGame"
    # 更新脚本
    tpiList =[]
    myshixuns = shixun.myshixuns
    if myshixuns.present?
      myshixuns.each do |myshixun|
        logger.info("tpiID is #{myshixun.id}")
        tpiID = myshixun.id
        instanceGitURL = gitlab_url myshixun
        logger.info("instanceGitURL is #{instanceGitURL}")
        tpiList << {:tpiID => tpiID, :instanceGitURL => instanceGitURL}
        logger.info("###############{tpiList.to_json unless tpiList.blank?}")
      end
    end
    tpiList = Base64.urlsafe_encode64(tpiList.to_json) unless tpiList.blank?
    params = {:gameInfo => "#{gameInfo}", :tpiList => "#{tpiList}" }
    logger.info("%%%%%%%%%%%%params is #{params}")
    # end
    res = uri_exec uri, params
    if res && res['code'].to_i != 0
      raise("实训云平台繁忙（繁忙等级：90）")
    end
  end

  # 仅仅产生记录，用于已执行publish的方法
  # ShixunModify中status 1：表示有更改，开启实训的时候需要重置，0：表示不需要重置或已重置完成
  def shixun_modify_status_without_publish shixun, type
    myshixuns = shixun.myshixuns
    unless myshixuns.blank?
      myshixuns.each do |myshixun|
        shixun_modify = ShixunModify.where(:shixun_id => shixun.id, :myshixun_id => myshixun.id).first
        if shixun_modify.nil?
          ShixunModify.create!(:shixun_id => shixun.id, :myshixun_id => myshixun.id, :status => type)
        else
          shixun_modify.update_attributes!(:status => type)
        end
      end
    end
  end

  # 通关后，把最后一次成功的代码存到数据库
  # type 0 创始内容， 1 最新内容
  def game_passed_code game_id, path, myshixun_gpid, type
    g = Gitlab.client
    rev = rev.nil? ? "master" : rev
    path = path.strip if path.present?
    file_content = g.files(myshixun_gpid, path, rev).content
    if file_content.blank?
      # gitlab缺陷：forked完成，短暂时间内取不了内容的，所以做一个小轮询，间隔0.1秒
      # 超过2秒则失败，需通过页面刷新
      for i in 0..30 do
        sleep(0.1)
        file_content = g.files(myshixun_gpid, path, rev).content
        unless file_content.blank?
          break
        end
      end
    end
    unless file_content.present?
      raise("获取文件代码异常")
    end
    file_content = tran_base64_decode64(file_content)
    game_code = GameCode.where(:game_id => game_id, :path => path).first
    if game_code.nil?
      GameCode.create!(:game_id => game_id, :new_code => file_content, :path => path)
    else
      game_code.update_attributes!(:new_code => file_content)
    end
  end

  def game_code_init game_id, path
    game_code = GameCode.where(:game_id => game_id, :path => path).first
    GameCode.create(:game_id => game_id, :path => path) if game_code.blank?
  end

  # 判断用户是否认证
  def check_authentication
    # return true
    # if params[:action] == "on_search" || params[:action] == "apply_trail"  # 之所以这样处理是为了避开account页面ajax加载
    #   return true
    # end
    Rails.logger.info("check_authentication start")
    unless User.current.logged?
      url = request.original_url
      redirect_to signin_path(:back_url => url)
      return
    end
=begin
    if User.current.created_on.strftime('%Y-%m-%d %H:%M:%S') > "2018-01-01 00:00:00" && User.current.phone.blank?
      redirect_to change_or_bind_path(:type => "phone")
      return
    end
=end
    user_e = UserExtensions.where(:user_id => User.current.id).first
    if User.current.lastname.blank? || user_e.school_id.blank? || user_e.identity.blank? || User.current.mail.blank?
      redirect_to user_info_path()
      Rails.logger.info("check_authentication end")
      return
    elsif User.current.certification != 1
      day_cer = UserDayCertification.where(:user_id => User.current.id).last
      unless (Time.now.to_i - day_cer.try(:created_at).to_i) < 86400
        redirect_to my_account_path()
        Rails.logger.info("check_authentication end")
        return
      end
    end
  end

  def match_specific_symbol(str)
    str.gsub(" ", "<span class=\"empty\" style = \"background:#8d8787;\"></span>").gsub(/\r\n$/, "<i class=\"fa fa-level-down font-16\" style = \"color:#8d8787;\" aria-hidden=\"true\"></i>").gsub("\r\n", "<br>").gsub(/\t/, "<span class=\"tab-key\" style = \"background:#8d8787;\"><i class=\"fa fa-long-arrow-right color-grey3\" aria-hidden=\"true\"></i></span>").html_safe
  end

  # textarea 以/r/n开头时，回车效果会被替换，因此先把\r转换成\r 再添加一个\r（直接添加\r不行）
  def match_specific_symbol1(str)
    str.gsub(/\A\r/, "\r\r")
  end

  # 积分表中建立记录行为,有过奖励则不重复奖励
  def reward_grade(user, container_id, container_type, score)
    grade = Grade.where(:user_id => user.id, :container_id => container_id, :container_type => container_type).first
    if grade.nil?
      Grade.create!(:user_id => user.id, :container_id => container_id, :container_type => container_type, :score => score)
      user.update_column(:grade, (score.to_i + user.grade.to_i))
    end
  end

  def reward_experience(user, container_id, container_type, score)
    experience = Experience.where(:user_id => user.id, :container_id => container_id, :container_type => container_type).first
    if experience.nil?
      Experience.create!(:user_id => user.id, :container_id => container_id, :container_type => container_type, :score => score)
      user.update_column(:experience, (score.to_i + user.experience.to_i))
    end
  end

  def shixun_name game_id
    game = Game.where(:id => game_id).first
    game.nil? ? "---" : game.challenge.shixun.name
  end

  def grade_shixun_name shixun_id
    shixun = Shixun.where(:id => shixun_id).first
    shixun.nil? ? "---" : shixun.name
  end

  def game_position game_id
    game = Game.where(:id => game_id).first
    game.nil? ? "---" : game.challenge.position
  end

  def managements_navigation_bar_show menu_type, sub_type, grandchild_type={}
    case menu_type
      when 2
        sub_type == 1 ? "课程列表" : (sub_type == 2? "课堂列表" : (sub_type == 3? "实训作业" : "项目列表"))
      when 3
        case sub_type
          when 1
            "实训列表"
          when 2
            "实训配置列表"
          when 3
            "已发布的实训"
          when 4
            "已关闭的实训"
          when 5
            "镜像管理"
          when 6
            "学员实训列表"
          when 7
            "镜像类别图片"
          when 8
            "TPI实训列表"
          when 9
            "TPI性能测试结果"
        end
      when 4
        case sub_type
          when 1
            "实训课程列表"
          when 2
            "实训课程配置"
          when 3
            "已发布实训课程"
        end
      when 5
        case sub_type
          when 1
            "竞赛列表"
        end
      when 6
        if sub_type == 1
          link_to('单位列表', departments_part_managements_path()) + "#{grandchild_type[:next_type] == 1 ? " > #{grandchild_type[:school].name}" : ""}"
        else
          "单位部门列表"
        end
      when 7
        sub_type == 1 ? "用户列表" : (sub_type == 2 ? "试用授权列表" : "自动授权列表")
      when 8
        sub_type == 1 ? "作业回复" :
            (sub_type == 2 ? "实训反馈" :
                (sub_type == 3 ? "讨论区" : "课堂讨论区")
            )
      when 9
        sub_type == 1 ? "实训留言列表" : ""
      when 10
        sub_type == 1 ? "实名认证" :
            (sub_type == 2 ? "试用授权" :
                (sub_type == 3 ? "部门审批" :
                    (sub_type == 4 ? "单位审批" :
                        (sub_type == 5 ? "实训发布" :
                            (sub_type == 6 ? "实训课程发布" : "职业认证")
                        )
                    )
                )
            )
      when 11
        "工程认证+"
      when 12
        sub_type == 1 ? "过关任务模板" :
            (sub_type == 2 ? "实训简介模板" :
                (sub_type == 3 ? "背景知识模板" :
                    (sub_type == 4 ? "通用评测模板" :
                        (sub_type == 5 ? "新课导语模板" :
                            (sub_type == 6 ? "实训评分设置" :
                                (sub_type == 7 ? "技术体系" : "升级通知")
                            )
                        )
                    )
                )
            )
    end
  end


  # codeMirror语言转换
  def language_switch language
    case language
      when "Java"
        "text/x-java"
      when "C"
        "text/x-csrc"
      when "C++"
        "text/x-c++src"
      when "Python"
        "text/x-python"
      when "Ruby"
        "text/x-ruby"
    end
  end

  # 实训语言的种类
  def shixun_language
    ["Java", "C", "C++", "Python2.7", "Python3.6", "MySQL/Java", "Html", "JFinal", "Docker", "Ethereum", "Dynamips", "MachineLearning",
     "Verilog","Spark","MySQL/Python3.6","PHP","PHP/Web","Hadoop", "Golang","Android","Matlab","Shell", "Git", 'Perl6', 'Kotlin', 'Elixir', 'JavaScript', 'Ruby']
  end

  # 实训试用专业
  def shixun_major_option
    content = []
    content << ["选择实训适用的专业", 0]
    content << ["计算机科学与技术", 635]
    content << ["软件工程", 636]
    content << ["网络工程", 637]
    content << ["信息安全", 638]
    content << ["物联网工程", 639]
    content << ["信息工程", 622]
    content << ["通信工程", 619]
  end

  # 实训面向学员
  def shixun_trainee
    content = []
    content << ["初级学员", 1]
    content << ["中级学员", 2]
    content << ["高级学员", 3]
    content << ["顶级学员", 4]
  end

  # 班级设置排序中文
  def switch_to_chinese word
    case word
      when "boards"
        result = "讨论区"
      when "news"
        result = "通知"
      when "homework"
        result = "作业"
      when "exercises"
        result = "试卷"
      when "poll"
        result = "问卷"
      when "statistics"
        result = "统计"
      when "attachment"
        result ="资源"
    end
    return result
  end

  def allow_to_view_challenge challenge, shixun
    # 判断对应关卡的game是否开启，如果开启则允许查看
    game_count = Game.where(:challenge_id => challenge, :user_id => User.current, :status => [0,1,2]).count
    if game_count > 0
      return true
    else
      return false
    end
  end

  # 已通过的关卡数
  def had_passed_changllenge_count shixun, user
    myshixun = Myshixun.where(:shixun_id => shixun.id, :user_id => user.id).first
    if myshixun.nil?
      0
    elsif myshixun.games.select{|game| game.status == 2}.count == 0
      -1
    elsif myshixun.games.select{|game| game.status == 0}.count > 0
      [myshixun.games.select{|game| game.status == 2}.count + 1]
    else
      myshixun.games.select{|game| game.status == 2}.count
    end
  end

  # 判断TPM已通过的管卡数
  def had_passed_games_count shixun_id, user_id
    #Game.find_by_sql("select count(*) as unpass_count from games where games.status=2 and user_id=#{user_id} and games.challenge_id in (select id from challenges where shixun_id=#{shixun_id})").first.try(:unpass_count)
    Game.find_by_sql("SELECT count(*) cnt FROM `games` g join myshixuns m on m.id = g.myshixun_id where m.user_id = #{user_id} and m.shixun_id = #{shixun_id} and g.status = 2;").first.try(:cnt)
  end

  # 用户实训评测状态
  def user_evaluate_status shixun, user
    myshixun = shixun.myshixuns.where(:user_id => user.id).first
    if myshixun.blank?
      "--"
    else
      game_id = myshixun.games.map(&:id)
      output = Output.where(:game_id => game_id).reorder("updated_at desc").first
      if output.blank?
        "--"
      else
        if output.try(:code) == -1
          time_from_now(output.updated_at).to_s + "评测失败"
        else
          time_from_now(output.updated_at).to_s + "评测成功"
        end
      end
    end
  end

  def student_work_performance score
    case score
      when (90..100)
        '优秀'
      when (70...90)
        '良好'
      when (60...70)
        '及格'
      when (0...60)
        '不及格'
    end
  end

  # 已通过的关卡数 返回int类型(包含查看参考答案的)
  def had_passed_changllenge_num myshixun
    if myshixun.nil?
      0
    else
      myshixun.games.select{|game| game.status == 2}.count
    end
  end

  # 已通过的关卡数 返回int类型(未查看参考答案)
  def had_passed_no_ans_changllenge_num myshixun
    if myshixun.nil?
      0
    else
      myshixun.games.select{|game| game.status == 2 && game.final_score > 0}.count
    end
  end

  # TPI状态 ：已通关、未通关、未开启
  def my_shixun_status shixun, user
    status = ""
    myshixun = Myshixun.where(:shixun_id => shixun.id, :user_id => user.id).first
    if myshixun.nil?
      status = "未开启"
    else
      status = myshixun.is_complete? ? "已通关" : "未通关"
    end
    status
  end

  # 定义实训相关方法
  def sum_final_score
    Game.find_by_sql("SELECT sum(final_score) as total_score FROM `games` where user_id=#{User.current.id}").first.try(:total_score)
  end

  # 获取某个myshixun的得分
  def sum_myshixun_score myshixun_id
    Game.find_by_sql("SELECT sum(final_score) as total_score FROM `games` where myshixun_id=#{myshixun_id}").first.try(:total_score)
  end

  # myshixun 最高分
  def top_score shixun, position
    Game.find_by_sql("SELECT max(final_score) as top_score FROM `games` g, `challenges` c where g.challenge_id = c.id and  c.position=#{position} and g.myshixun_id in (SELECT id FROM `myshixuns` ms where ms.shixun_id=#{shixun.id})").first.try(:top_score)
  end

  # 实训平均分
  def shixun_avg_score shixun, position
    Game.find_by_sql("SELECT avg(g.final_score) as avg_score FROM `games` g, `challenges` c where g.challenge_id=c.id and c.position=#{position} and g.myshixun_id in (SELECT id FROM `myshixuns` ms where ms.shixun_id=#{shixun.id})").first.try(:avg_score)
  end

  # 正在进行中任务
  def shixun_running shixun, position
    Shixun.find_by_sql("SELECT count(*) as count FROM `myshixuns` ms, `games` g, `challenges` c where g.myshixun_id = ms.id and ms.shixun_id =#{shixun.id} and g.challenge_id=c.id  and c.position=#{position} and g.status in ('0','1');").first.try(:count)
  end

  # 已完成任务
  def shixun_done shixun, position
    Shixun.find_by_sql("SELECT count(*) as count FROM `myshixuns` ms, `games` g, `challenges` c where g.myshixun_id = ms.id and ms.shixun_id =#{shixun.id} and g.challenge_id=c.id  and c.position=#{position} and g.status=2;").first.try(:count)
  end

  # 测评次数
  def shixun_exec_total_count shixun, position
    Game.find_by_sql("SELECT * FROM `outputs` op, `games` g, `myshixuns` m where op.game_id = g.id and g.stage='#{position}' and  m.parent_id = '#{shixun.id}';")
  end

  # 平均耗时
  def game_avg_day created_at, updated_at
    time = (updated_at - created_at).to_i
    day = time / 86400
  end

  # 平均耗时
  def game_avg_hour created_at, updated_at
    time = (updated_at - created_at).to_i
    hour = time % (24*60*60) / (60*60)
  end

  # 平均耗时
  def game_avg_min created_at, updated_at
    time = (updated_at - created_at).to_i
    min = time % (24*60*60) % (60*60) / 60
  end

  # 耗时：天、小时、分、秒
  # 小于1分钟则不显示
  def game_spend_time time
    day = time / 86400
    hour = time % (24*60*60) / (60*60)
    min = time % (24*60*60) % (60*60) / 60
    sec = time % (24*60*60) % (60*60) % 60
    if day < 1
      if hour < 1
        if min < 1
          if sec < 1
            time = "--"
          else
            time = "#{sec}秒"
          end
        else
          time = "#{min}分钟 #{sec}秒"
        end
      else
        time = "#{hour}小时 #{min}分钟 #{sec}秒"
      end
    else
      time = "#{day}天 #{hour}小时 #{min}分钟 #{sec}秒"
    end
    return time
  end

  # 耗时：天、小时、分
  # 小于1分钟则不显示
  def work_spend_time time
    if time == 0
      time = "0小时"
    else
      day = time / 86400
      hour = time % (24*60*60) / (60*60)
      min = (time % (24*60*60) % (60*60) / 60.0).ceil
      if day < 1
        if hour < 1
          if min < 1
            time = "1分"
          else
            time = "#{min}分"
          end
        else
          time = "#{hour}小时#{min}分"
        end
      else
        time = "#{day}天#{hour}小时#{min}分"
      end
    end
    return time
  end

  # 耗时：小时、分、秒  00:00:00
  # 小于1秒钟则不显示
  def com_spend_time time
    hour = time / (60*60)
    min = time % (60*60) / 60
    sec = time % (60*60) % 60
    hour_str = "00"
    min_str = "00"
    sec_str = "00"
    if hour >= 1 && hour < 10
      hour_str = "0#{hour}"
    elsif hour >= 10
      hour_str = "#{hour}"
    end

    if min >= 1 && min < 10
      min_str = "0#{min}"
    elsif min >= 10
      min_str = "#{min}"
    end

    if sec >= 1 && sec < 10
      sec_str = "0#{sec}"
    elsif sec >= 10
      sec_str = "#{sec}"
    end

    time = "#{hour_str} : #{min_str} : #{sec_str}"
    return time
  end

  def consume_time time
    time.strftime('%Y/%m/%d %H:%M:%S')
  end

  def avg_spend_time shixun_id, position
    Game.find_by_sql("SELECT avg(g.end_time - g.open_time) as avg_time FROM `games` g, `challenges` c where c.id=g.challenge_id and g.status =2 and c.position = #{position} and g.myshixun_id in (SELECT id FROM `myshixuns` where shixun_id= #{shixun_id});").first.try(:avg_time).to_i
  end

  # 已闯关
  def had_pass shixun_id, position
    Game.find_by_sql("SELECT count(*) as count FROM `games` g, `challenges` c where c.id=g.challenge_id and g.status =2 and c.position =#{position} and g.myshixun_id in (SELECT id FROM `myshixuns` where shixun_id=#{shixun_id});").first.try(:count)
  end

  # 单个game测评次数
  def avg_my_pass game
    Output.where(:game_id => game).count
  end

  def shixun_final_score myshixun
    Game.find_by_sql("SELECT sum(final_score) as final_score FROM `games` where myshixun_id='#{myshixun.id}';").first.try(:final_score)
  end

  # def user_blogs_path(resource,parameters={})
  #   super
  # end
  # 复制一个任务
  def publish_games challenge, myshixun_id, index
    game = Game.new
    game.attributes = challenge.attributes.dup.except("id","shixun_id","user_id","visits")
    game.myshixun_id = myshixun_id
    game.user_id = User.current.id
    game.stage = challenge.position
    index == 0 ? game.status = 0 : game.status = 3
    challenge_samples = challenge.challenge_samples
    test_sets = challenge.test_sets
    if game.save
      unless challenge_samples.blank?
        challenge_samples.each do |cs|
          ChallengeSample.create(:game_id => game.id, :input => cs.input, :output => cs.output, :challenge_id => -1)
        end
      end
      unless test_sets.blank?
        test_sets.each do |ts|
          TestSet.create(:game_id => game.id, :input => ts.input, :output => ts.output, :challenge_id => -1)
        end
      end
    end
  end

  def git_repository_url project, type
    if type == "Shixun"
      rep_identify = Repository.where(:shixun_id => project.id, :type => "Repository::Gitlab").first.try(:identifier)
    elsif type == "Myshixun"
      rep_identify = Repository.where(:myshixun_id => project.id, :type => "Repository::Gitlab").first.try(:identifier)
    else
      rep_identify = Repository.where(:project_id => project.id, :type => "Repository::Gitlab").first.try(:identifier)
    end
    gitlab_address = Redmine::Configuration['gitlab_address']
    gitUrl = gitlab_address.to_s+"/"+project.owner.to_s+"/"+ rep_identify + "."+"git"
  end

  def gitlab_url container
    g = Gitlab.client
    url = "#{Redmine::Configuration['gitlab_address_ip']}/#{g.project(container.try(:gpid)).try(:path_with_namespace)}.git"
  end

  def gitlab_address_url container
    g = Gitlab.client
    url = "#{Redmine::Configuration['gitlab_address']}/#{g.project(container.try(:gpid)).try(:path_with_namespace)}.git"
  end

  # paranet_gpid 为fork的源头
  # u_gid 为当前用户在gitlab中对应的用户id
  def sync_gitlab_rep container, parent_gpid, u_gid
    Rails.logger.info("# sync_gitlab_rep # parent_gpid is #{parent_gpid}, u_gid is #{u_gid}")
    if container.class == Myshixun
      gshixun = Gitlab.client.fork(parent_gpid, u_gid)
      container.update_attribute(:gpid, gshixun.id)
    end
    return gshixun.try(:id)
  end

  # def git_shixun_url shixun, login
  #   rep_identify = Repository.where(:shixun_id => shixun.id, :type => "Repository::Gitlab").first.try(:identifier)
  #   gitlab_address = Redmine::Configuration['gitlab_address']
  #   gitUrl = gitlab_address.to_s+"/"+login+"/"+ rep_identify + "."+"git"
  # end

  # def git_shixun_url_ip shixun, login
  #   rep_identify = Repository.where(:shixun_id => shixun.id, :type => "Repository::Gitlab").first.try(:identifier)
  #   gitlab_address = Redmine::Configuration['gitlab_address_ip']
  #   gitUrl = gitlab_address.to_s+"/"+login+"/"+ rep_identify + "."+"git"
  # end

  # def git_myshixun_url_ip myshixun, user_id
  #   g = Gitlab.client
  #   login = User.where(:id => user_id).first.try(:login)
  #   rep_identify = g.project(myshixun.gpid).try(:name)
  #   gitlab_address = Redmine::Configuration['gitlab_address_ip']
  #   gitUrl = gitlab_address.to_s+"/"+login+"/"+ rep_identify + "."+"git"
  # end

  # myshixun git url by domain
  # def git_myshixun_url myshixun, user_id
  #   g = Gitlab.client
  #   login = User.where(:id => user_id).first.try(:login)
  #   rep_identify = g.project(myshixun.gpid).try(:name)
  #   gitlab_address = Redmine::Configuration['gitlab_address']
  #   gitUrl = gitlab_address.to_s+"/"+login+"/"+ rep_identify + "."+"git"
  # end

  def uri_exec uri, params
    begin
      Rails.logger.info("@parmas is #{params}, url is #{uri}")
      uri = URI.parse(URI.encode(uri.strip))
      res = Net::HTTP.post_form(uri, params).body
      res = JSON.parse(res)
    rescue => e
      Rails.logger.error("failed to post data to brige! #{e}")
      raise("实训云平台繁忙（繁忙等级：84）")
    end
  end

  # type 为繁忙等级
  # status-> 501：check检查版本库是否有代码异常
  # status-> 502：实训评测异常；503实训版本库check异常
  def interface_post uri, params, status
    begin
      uri = URI.parse(URI.encode(uri.strip))
      res = Net::HTTP.post_form(uri, params).body
      res = JSON.parse(res)
      if (res && res['code'] != 0)
        raise(status)
      end
      res
    rescue Exception => e
      Rails.logger.error("post failed! #{e}")
      raise("实训云平台繁忙（繁忙等级：#{status}）")
    end
  end

  def get_url_exec uri, options={}
    begin
      uri = URI.parse(URI.encode(uri.strip))
      res = Net::HTTP.get_response(uri).body
      res = JSON.parse(res)
    rescue => e
      logger.error("get response failed ! #{e}")
      raise("实训云平台繁忙（繁忙等级：84）")
    end
  end

  def uri_json_exec uri, params
    Net::HTTP.start(uri.hostname, uri.port) {|http|
      http.post(uri.path, params.to_json)
    }

    http = Net::HTTP.new(uri.host, uri.port)
    res =  Net::HTTP.post(uri, params.to_json).body
    res = JSON.parse(res)
  end

  def last_reply_time container_id
    message = Message.where(:root_id => container_id).order("created_on desc").first
    time = message.created_on
    return time
  end

  def judge_Chinese_num str
    cn_reg = /[\u4e00-\u9fa5]{1}/
    cn_number = str.scan(cn_reg).size
    en_number = str.size - cn_number
    size = 1.9* cn_number + en_number
  end

  # homework_common状态
  # 0：挂起；1：提交中；2：匿评中；3：评阅中
  def new_homework_common_status status
    case status
      when 0
        "未发布"
      when 1
        "提交中"
      when 2
        "补交中"
      when 3
        "匿评中"
      when 4
        "申诉中"
      when 5
        "评阅中"
      when 6
        "已结束"
    end
  end

  # 作业不同状态的不同样式
  def homework_status_color status
    style = ""
    case status
      when '未发布'
        style = 'edu-filter-btn-no-late'
      when '提交中', '评阅中', '匿评中', '交叉评阅中'
        style = 'edu-filter-btn-orange'
      when  '已开启补交'
        style = 'edu-filter-btn-green'
      when '已截止', '未开启补交'
        style = 'edu-filter-btn-red'
      when '已结束'
        style = 'edu-filter-btn-end'
      when '申诉中'
        style = 'edu-filter-btn-appeal'
    end
  end

  # 有分班权限的课堂 学生提交作品时发送的消息对象
  def tiding_teachers course, member
    if course.teacher_course_groups.count > 0
      member_ids = course.teacher_course_groups.where(:course_group_id => member.try(:course_group_id)).pluck(:member_id)

      teachers = course.teachers.where("members.id not in (#{course.teacher_course_groups.pluck(:member_id).size > 0 ? course.teacher_course_groups.pluck(:member_id).join(',') : -1}) or
                                            members.id in (#{member_ids.size > 0 ? member_ids.join(',') : -1})")
    else
      teachers = course.teachers
    end
    teachers
  end

  # 分班管理的老师所看到的成员数
  def group_student_count course
    member = @course.members.where(:user_id => User.current.id).first
    if User.current.allowed_to?(:as_teacher, course) && member.present? && member.teacher_course_groups.count > 0
      student_count = course.members.where(:course_group_id => member.teacher_course_groups.pluck(:course_group_id)).select{|member| member.roles.to_s.include?("Student")}.count
    else
      student_count = course.student.count
    end
    student_count
  end

  # 已提交作品
  def late_commit_work_status work, homework
    if homework.allow_late
      link_to "补交附件", student_work_path(work, :is_focus => 1), :class => 'edu-filter-btn edu-activity-orange ml15 fl mt5', :title => "可追加作品修订附件"
    else
      "<span class='edu-filter-btn edu-filter-btn-red ml15 fl mt5'>未开启补交</span>".html_safe
    end
  end

  # 未提交作品
  def un_commit_work_status project, homework
    if homework.allow_late
      if homework.homework_type == 3 && project.nil? && homework.homework_detail_group.base_on_project == 1
        link_to "补交作品", "javascript:void(0)", :class => 'edu-filter-btn edu-activity-orange ml15 fl mt5', :style => "cursor:not-allowed", :title => '请先关联项目再补交作品'
      else
        link_to "补交作品", new_student_work_url_without_domain(homework.id), :class => 'edu-filter-btn edu-activity-orange ml15 fl mt5'
      end
    else
      "<span class='edu-filter-btn edu-filter-btn-red ml15 fl mt5'>未开启补交</span>".html_safe
    end
  end

  # 判断作业有多少人提交了
  #
  def had_commit_studentwork_count homework_common
    member = homework_common.course.members.where(:user_id => User.current.id).first
    student_works = homework_common.student_works
    if member.present? && member.teacher_course_groups.count > 0
      group_students = homework_common.course.members.where(:course_group_id => member.teacher_course_groups.pluck(:course_group_id)).map(&:user_id)
      student_works = student_works.where(:user_id => group_students)
    end
    student_works.where("work_status !=?", 0).count
  end

  # 实训作业的有效作品数
  def effective_shixun_work_count homework_common
    count = 0
    shixun = homework_common.shixuns
    if shixun
      homework_common.student_works.where("work_status !=?", 0).each do |work|
        myshixun = work.myshixun
        count = count + (myshixun && myshixun.games.select{|game| game.status == 2}.size > 0 ? 1 : 0)
      end
    end
    count
  end

  # 实训作业的通关作品数
  def tongguan_shixun_work_count homework_common
    count = 0
    shixun = homework_common.shixuns.first
    if shixun
      challenge_count = shixun.challenges.count
      homework_common.student_works.where("work_status !=?", 0).each do |work|
        myshixun = work.myshixun
        if myshixun && myshixun.games.select{|game| game.status == 2}.size == challenge_count
          count = count + 1
        end
      end
    end
    count
  end

  # 未提交作品数统计
  def had_uncommit_studentwork_count homework_common
    member = homework_common.course.members.where(:user_id => User.current.id).first
    student_works = homework_common.student_works
    if member.present? && member.teacher_course_groups.count > 0
      group_students = homework_common.course.members.where(:course_group_id => member.teacher_course_groups.pluck(:course_group_id)).map(&:user_id)
      student_works = student_works.where(:user_id => group_students)
    end
    student_works.where("work_status =?", 0).count
  end

  # 未评阅
  def had_unevaluate_count homework_common
    #count = StudentWorksScore.find_by_sql("SELECT count(distinct student_work_id) as count FROM student_works_scores sws, student_works sw, homework_commons hc where hc.id =#{homework_common.id} and sw.homework_common_id=hc.id and sw.is_delete = 0 and sws.student_work_id = sw.id and sws.user_id=#{User.current.id};").first.try(:count).to_i
    member = homework_common.course.members.where(:user_id => User.current.id).first
    student_works = homework_common.student_works
    if member.present? && member.teacher_course_groups.count > 0
      group_students = homework_common.course.members.where(:course_group_id => member.teacher_course_groups.pluck(:course_group_id)).map(&:user_id)
      student_works = student_works.where(:user_id => group_students)
    end
    has_comment = StudentWorksScore.where(:student_work_id => student_works.map(&:id), :reviewer_role => [1, 2]).group_by(&:student_work_id).count
    student_count = student_works.count
    return student_count - has_comment
  end

  # 该阶段还有多长时间结束/距下一阶段还有多长时间
  def homework_curr_time homework_common
    result = {}
    status = ""
    time = ""
    if homework_common.course.try(:is_end)
      status = "已结束"
      time = format_date homework_common.course.end_date
    else
      ho_detail_manual = homework_common.homework_detail_manual
      if ho_detail_manual
        case ho_detail_manual.comment_status
          when 0
            status = "未发布"
          when 1
            if homework_common.end_time && homework_common.end_time >= Time.now
              status = "提交中"
              time = how_much_time(homework_common.end_time)
            end
          when 3
            if ho_detail_manual.evaluation_end && ho_detail_manual.evaluation_end > Time.now
              status = "匿评中"
              time = how_much_time(ho_detail_manual.evaluation_end)
            end
          when 4
            if ho_detail_manual.appeal_time && ho_detail_manual.appeal_time > Time.now
              status = "申诉中"
              time = how_much_time(ho_detail_manual.appeal_time)
            end
          when 5
            status = "评阅中"
          when 6
            status = "评阅中"
        end
      end
    end
    result[:status] = status
    result[:time] = time
    result
  end

  # 试卷：该阶段还有多长时间结束/距下一阶段还有多长时间
  def exercise_curr_time exercise
    result = {}
    status = ""
    time = ""
    case exercise.exercise_status
      when 1
        status = "未发布"
      when 2
        if exercise.end_time && exercise.end_time >= Time.now
          status = "提交中"
          time = how_much_time(exercise.end_time)
        end
      when 3
        status = "已截止"
        time = format_time exercise.end_time
    end
    result[:status] = status
    result[:time] = time
    result
  end

  # 问卷：该阶段还有多长时间结束/距下一阶段还有多长时间
  def poll_curr_time poll
    result = {}
    status = ""
    time = ""
    case poll.polls_status
      when 1
        status = "未发布"
      when 2
        if poll.end_time && poll.end_time >= Time.now
          status = "提交中"
          time = how_much_time(poll.end_time)
        end
      when 3
        status = "已截止"
        time = format_time poll.end_time
    end
    result[:status] = status
    result[:time] = time
    result
  end

  # 公共分页
  def paginator_list objs, objs_count, limit, is_remote
    @is_remote = is_remote
    @objs_count = objs.count
    @obj_pages = Paginator.new @objs_count, limit, params['page'] || 1
    @offset ||= @obj_pages.offset
    @objs = paginateHelper @attachments,25
  end

  # 判断当前用户能否对消息进行操作
  def allow_to_show applied_message
    (User.current.id == applied_message.user_id && applied_message.status == 0) ? true : false
  end

  # 获取竞赛的管理人员
  def contest_managers contest
    contest.contest_members.select{|cm| cm.roles.to_s.include?("ContestManager")}
  end

  # 获取竞赛的评委人员
  def contest_judges contest
    contest.contest_members.select{|cm| cm.roles.to_s.include?("Judge")}
  end

  # 获取竞赛的参赛人员
  def contest_contestants contest
    contest.contest_members.select{|cm| cm.roles.to_s.include?("Contestant")}
  end

  # 字符串加密
  def aes_encrypt(key, encrypted_string)
    aes = OpenSSL::Cipher::Cipher.new("AES-128-ECB")
    aes.encrypt
    aes.key = key
    txt = aes.update(encrypted_string) << aes.final
    txt.unpack('H*')[0].upcase
  end

  # 字符串解密
  def aes_dicrypt(key, dicrypted_string)
    aes = OpenSSL::Cipher::Cipher.new("AES-128-ECB")
    aes.decrypt
    aes.key = key
    aes.update([dicrypted_string].pack('H*')) << aes.final
  end
  # 获取多种类型的user用户名
  def user_message_username user
    user.try(:show_name)
  end

  # 超出1w后用k+形式显示
  def switch_integer_into_k number
    number > 10000 ? (number.to_f / 1000).round.to_s + "k" : number
  end

  # 判断某个课程是否包含仅对自己可见的作业
  def course_has_score_open_common_homework course
    course.homework_commons.select{|hc| hc.score_open == 0}.count > 0 ? true : false
  end

  def welcome_course_message_count course_id
    board_id = Board.where(:course_id => course_id).first.try(:id)
    message_count = Message.where(:board_id => board_id).count
    return message_count
  end

  # 可以查看到资源库的资源
  def welcome_course_file_count course
    course.attachments.count
  end

  # 超级管理员实训评分设置的横轴
  def shixun_quality_show quality
    lower = quality.lower_limit
    upper = quality.upper_limit
    result = "#{quality.name}"
    if lower.present? && upper.present?
      result =  if(lower > lower.round)
                  "#{result}(#{lower.round},"
                else
                  "#{result}[#{lower.round},"
                end

      result =  if(upper >= upper.round)
                  "#{result}#{upper.round}]"
                else
                  "#{result}#{upper.round})"
                end
    end
    return result
  end

  # 管理员实训评分中 "指标"与"标准"的对应
  def description_of_quality indicator, position
    indicator.score_quality_descriptions.where(:position => position).first.try(:name) if indicator.present?
  end

  # 获取目录下所有文件，返回一个文件名的数组 type是查看文件的类型image表示图片
  # type [[1, "图片"], [2, "apk/exe"], [3, "txt"], [4, "html"]]
  def get_dir_filename path, type, game_id
    answer_picture = []
    image = ["png", "jpg", "gif", "jpeg", "bmp", "pic"]
    if File.directory? path
      Dir.foreach(path) do |file|
        if file !="." and file !=".."
            extension = file.split(".")[1].try(:downcase)
            if image.include?(extension) && type == 1
              answer_picture << file
              @type = "image"
            elsif extension == "html" && type == 4
              answer_picture << file
              @type = "html"
            elsif extension == "txt" && type == 3
              answer_picture << file
              @contents = ""
              f = File.open("#{path}/#{file}", "r")
              # ... process the file
              f.each_line do |line|
                if line.include?("Your score")
                  game = Game.find(game_id)
                  max_query_index = game.query_index - 1
                  a = line[11, line.length-1].try(:strip)
                  outputs = game.outputs.where(:query_index => max_query_index)
                  outputs.update_all(:text_scor => a) if outputs.present?
                end
                @contents += "#{line}"
              end
              f.close
              @type = "txt"
            end
        end
      end
    end
    return answer_picture
  end

  # 隐藏项目以外的信息
  # return: true 显示，false 不显示
  def hidden_unproject_infos
    hidden_info = Setting.find_by_name("hidden_non_project")
    (hidden_info && hidden_info.value == "1") ? true : false
  end

  # 获取当前用户的fork数量
  def get_fork_from_project forked_from_project_id
    Project.find(forked_from_project_id)
  end

  # 判断当前用户是否已经fork过当前项目
  # project: current_project
  def has_forked_cur_project project
    cur_user_projects = Project.where(:user_id => User.current.id)
    if cur_user_projects.count == 0
      false
    else
      has_forked = cur_user_projects.select{|cur_user_project| cur_user_project.forked_from_project_id == project.id}
      has_forked.length > 0 ? true : false
    end
  end

  # 判断当前用户是否已经实训过当前项目
  # project: current_project
  def has_exec_cur_shixun shixun
    Myshixun.where(:user_id => User.current.id, :shixun_id => shixun.id).count > 0 ? true : false
  end

  # 用户必须登录；必须创建了关卡；有实践任务的必须提交了版本库代码
  def allow_shixun_exec shixun
    g = Gitlab.client
    result = User.current.logged? && shixun.challenges.count > 0
    if shixun.challenges.where(:st => 0).count > 0
      result = result && g.trees(shixun.gpid).count.to_i > 0
    end
    result
  end

  # 判断当前用户是否可以开始实战
  def link_to_shixun_exec myshixun, shixun, str
    is_modify = ShixunModify.where(:myshixun_id => myshixun.try(:id), :shixun_id => shixun.try(:id), :status => 1).first.blank?
    if User.current.mail.blank?
      link_to str, "javascript:void(0);", :onclick => "notice_box_redirect('#{security_settings_path}', '开启实训，请先绑定邮箱')", :class => "fr shixun-task-btn task-btn-orange mr15", :target => "_blank"
    else
      if is_modify || myshixun.blank?
        link_to str, shixun_exec_shixun_path(shixun), :class => "fr shixun-task-btn task-btn-orange mr15", :target => "_blank"
      else
        link_to str, "javascript:void(0);", :onclick => "sure_box_redirect('#{myshixun_reset_myshixun_path(myshixun)}', '实训已经更新啦，系统正在为您重置')", :class => "fr shixun-task-btn task-btn-orange mr15"
      end
    end
  end

  # 通过系统外部邮箱查找用户，如果用户不存在则用邮箱替换
  def get_user_by_mail mail
    user = User.find_by_mail(mail)
    user.nil? ? User.find(2) : user
  end

  # 通过登录名查找用户，能查到返回用户姓名，否则返回登录名
  def link_to_user_login login, css_class
    user = User.find_by_login(login)
    user = user.nil? ? login : user
    if user.is_a?(User)
      name = user.show_name
      link_to name, {:controller=> 'users', :action => 'show', id: user.id}, :class => css_class, :target => "_blank"
    else
      "<a class='#{css_class}'>#{h(user.to_s)}</a>".html_safe
    end
  end

  def link_to_user_mail(mail, css_class)
    user = User.find_by_mail(mail)
    user = user.nil? ? mail : user
    if user.is_a?(User)
      name = user.show_name
      link_to name, {:controller=> 'users', :action => 'show', id: user.id}, :class => css_class, :target => "_blank"
    else
      "<a class='#{css_class}' data-tip-down='#{user.to_s}'>#{h(user.to_s)}</a>".html_safe
    end
  end

  # 通过系统外部用户名查找用户，如果用户不存在则用邮箱替换
  def get_user_by_login_and login
    user = User.find_by_login(login)
    (user.nil? || login == "root") ? User.find(2) : user
  end

  # 登录名来自外部系统
  # 通过登录名查找用户，如果用户存在则显示用户姓名，否则显示登录名
  def get_user_by_login login
    user = User.find_by_login(login)
    user.nil? ? login : user.show_name
  end

  # 重置user_path，目的是将id转换成用户名
  def user_path(resource, parameters = {})
    if Fixnum ===  resource
      resource = User.find(resource)
    end
    super
  end

  # 重置user_path，目的是将id转换成用户名
  # def shixun_path(resource, parameters = {})
  #   if Fixnum ===  resource
  #     resource = Shixun.find(resource)
  #   end
  #   super
  # end

  # 历史数据（老版本库数据）处理完则可以修改该放放
  def get_rep_identifier_by_project project
    identifier = Repository.where(:project_id => project.id, :type => "Repository::Gitlab").first.try(:identifier)
    result = identifier.nil? ? Repository.where(:project_id => project.id).first.try(:identifier) : identifier
    result
  end

  # 项目版本库导出Excel功能
  def export_rep_xls(gpid, options = {})
    g = Gitlab.client
    cycle = params[:cycle]
    rev = params[:rev]
    if cycle == "week"
      statics = g.rep_stats_week(gpid, :rev => rev)
    elsif cycle == "month"
      statics = g.rep_stats_month(gpid, :rev => rev)
    end
    xls_report = StringIO.new
    book = Spreadsheet::Workbook.new
    sheet1 = book.create_worksheet :name => l(:project_module_repository)
    blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
    sheet1.row(0).default_format = blue
    sheet1.row(0).concat([l(:rep_branch),l(:rep_author),l(:rep_changeset),l(:rep_code_add),l(:rep_code_delete),l(:rep_code_modified),l(:rep_sode_time),l(:rep_sode_cycle),l(:rep_author_mail)])
    count_row = 1
    statics.each do |static|
      user = User.where(:mail => static.email).first
      sheet1[count_row,0] = rev
      sheet1[count_row,1] = user.nil? ? static.uname : user.show_name
      sheet1[count_row,2] = static.commits_num
      sheet1[count_row,3] = static.add
      sheet1[count_row,4] = static.del
      sheet1[count_row,5] = static.changes
      sheet1[count_row,6] = Time.now.strftime('%Y-%m-%d %H:%M:%S')
      sheet1[count_row,7] = cycle == "week" ? "最近1周" : "最近一月"
      sheet1[count_row,8] = static.email
      count_row += 1
    end
    book.write xls_report
    xls_report.string
  end

  # 项目issue列表导出Excel功能
  def  issue_list_xls issues
    xls_report = StringIO.new
    book = Spreadsheet::Workbook.new
    sheet1 = book.create_worksheet :name => "issues"
    blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
    sheet1.row(0).default_format = blue
    sheet1.row(0).concat([l(:issue_xls_id),l(:issue_xls_tracker_id),l(:issue_xls_title),l(:issue_xls_description),l(:issue_xls_status),l(:issue_xls_assign),l(:issue_xls_priority),l(:issue_xls_author),l(:issue_xls_created_at),l(:milestone),l(:issue_xls_start),l(:issue_xls_due),l(:issue_xls_ratio)])
    count_row = 1
    issues.each do |issue|
      sheet1[count_row,0] = issue.id
      sheet1[count_row,1] = issue_tracker_change(issue.tracker_id)
      sheet1[count_row,2] = issue.subject
      sheet1[count_row,3] = (issue.description.gsub(/<\/?.*?>/,"")).html_safe
      sheet1[count_row,4] = issue_status_change(issue.status_id)
      sheet1[count_row,5] = issue.assigned_to.try(:show_name)
      sheet1[count_row,6] = issue_priority_change(issue.priority_id)
      sheet1[count_row,7] = issue.author.show_name
      sheet1[count_row,8] = issue.created_on.nil? ? issue.created_on : issue.created_on.strftime('%Y-%m-%d %H:%M:%S')
      sheet1[count_row,9] = issue.fixed_version.try(:name)
      sheet1[count_row,10] = issue.start_date.nil? ? issue.start_date :  issue.start_date.strftime('%Y-%m-%d')
      sheet1[count_row,11] = issue.due_date.nil? ? issue.due_date : issue.due_date.strftime('%Y-%m-%d')
      sheet1[count_row,12] = issue_ratio_change(issue.done_ratio, issue.status_id)
      count_row += 1
    end
    book.write xls_report
    xls_report.string
  end

  # 用户资料是否完善
  def user_data_complete user
    user_extension = UserExtensions.where(:user_id => user.id).first
    data = true
    if user_extension.gender.nil? || user_extension.school_id.nil? || user.lastname.blank? || (user_extension.identity == 3 && user_extension.school_id.nil?)
      data = false
    end
    return data
  end

  # 获取用户单位
  # 优先获取高校信息，如果改信息不存在则获取occupation
  def get_occupation_from_user user
    School.where("id=?",user.user_extensions.school_id).first.try(:name).nil? ? user.user_extensions.try(:occupation) : School.where("id=?",user.user_extensions.school_id).first.try(:name)
  end

  def update_visiti_count container
    container.update_column(:visits, container.visits + 1)
  end

  def if_hidden_subdomain  field
    domains = field.sub_domains.select{|domain| domain.hide.to_i == 0}
    result = domains.length > 0 ? true : false
    return result
  end

  # 判断某个资源是否可以申请
  def attach_show_allow attach_id
    attachment = Attachment.find(attach_id)
    case attachment.container_type
      when "Project"
        User.current.member_of?(attachment.container) ? true : false
      when "Course"
        User.current.member_of_course?(attachment.container) ? true : false
      when "OrgSubfield"
        User.current.member_of_org?(attachment.container.organization) ? true : false
      when "Principal"
        User.current.id == attachment.author_id ? true : false
    end
  end

  # 判断某个私有资源是否可以发送下载权限
  # 结果为true不能下载，false可以下载
  def private_attachment_allow attachment_id
    attach = Attachment.find(attachment_id)
    # 条件取否，result结果为true则不能下载
    result = attach.is_public == 0 && attach.author != User.current && !attach.get_apply_resource_status(attach.id, User.current.id) && !attach_show_allow(attach)
  end

  # Time 2015-03-24 15:27:29
  # Author lizanle
  # Description 从硬盘上删除对应的资源文件
  def delete_kindeditor_assets_from_disk owner_id,owner_type
    assets = Kindeditor::Asset.where(["owner_id = ? and owner_type = ?",owner_id,owner_type])
    if !assets.nil? && !assets.blank?
      assets.all.each do |asset|
        next if asset.nil?
        filepath = File.join(Rails.root,"public","files","uploads",
                             asset[:created_at].to_s.gsub("+0800","").to_datetime.strftime("%Y%m").to_s,
                             asset[:asset].to_s)
        File.delete(filepath) if File.exist?filepath
      end
    end
  end

  def link_to_user_version(version, options = {})
    return '' unless version && version.is_a?(Version)
    link_to_if version.visible?, format_version_name(version), { :controller => 'versions', :action => 'show', :id => version }, :class => "linkBlue"
  end

  # 判断课程是否为精品课程
  def is_excellent_course course
    (course.is_excellent? or course.excellent_option?) ? true : false
  end

  # 判断课程对成员是否可见
  def visible_course?(course)
    (course.is_delete? or (!course.is_public? && !User.current.member_of_course?(course))) ? false : true
  end

  # 获取项目/课程总分
  # 发布缺陷 4分 回复缺陷 1分 提交一次 4分 讨论帖子 2分 回复帖子 1分 发布新闻 1分
  def static_project_score obj
    score = obj.issue_num * 4 + obj.issue_journal_num + (obj.changeset_num||0) * 4 + obj.board_num * 2 + obj.board_message_num + obj.attach_num * 5
  end

  # 获取组织成员中文名字
  def get_org_member_role_name member
    unless member.roles[0].nil?
      case member.roles[0].name
        when 'orgManager'
          '管理人员'
        when 'orgMember'
          '组织成员'
      end
    end
  end

  # 判断组织左侧展开或者隐藏
  def is_hide_org_left obj
    if obj.nil?
      return true
    else
      if obj.hide == 0
        return true
      else
        return false
      end
    end
  end

  # Time 2015-03-24 16:38:05
  # Author lizanle
  # Description after save后需要进行资源记录的更新
  # owner_type = 1 对应的是 memo
  # owner_type = 2 对应的是forum
  # owner_type = 3 对应的是message
  # owner_type = 4 对应的是news
  # owner_type = 5 对应的是comment
  def update_kindeditor_assets_owner ids,owner_id,owner_type
    ids.each do |id|
      asset = Kindeditor::Asset.find(id.to_i)
      asset.owner_id = owner_id
      asset.owner_type = owner_type
      asset.save
    end
  end

  # 更新课程活跃度得分
  def course_member_score(course_id,user_id,type)
    course_contributor_score = CourseContributorScore.where("course_id =? and user_id =?", course_id, user_id).first
    case type
      when "HomeworkCommon"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :homework_journal_num => 1)
        else
          score = course_contributor_score.homework_journal_num.to_i + 1
          course_contributor_score.update_column(:homework_journal_num, score)
        end
      # 课程留言
      when "Course"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :journal_num => 1)
        else
          score = course_contributor_score.journal_num.to_i + 1
          course_contributor_score.update_column(:journal_num, score)
        end
      when  "Message"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_num => 1)
        else
          score = course_contributor_score.message_num.to_i + 1
          course_contributor_score.update_column(:message_num, score)
        end
      when "MessageReply"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_reply_num => 1)
        else
          score = course_contributor_score.message_reply_num.to_i + 1
          course_contributor_score.update_column(:message_reply_num, score)
        end
      when "NewReply"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :news_reply_num => 1)
        else
          score = course_contributor_score.news_reply_num.to_i + 1
          course_contributor_score.update_column(:news_reply_num, score)
        end
      when "News"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :news_num => 1)
        else
          score = course_contributor_score.news_num.to_i + 1
          course_contributor_score.update_column(:news_num, score)
        end
      when "Attachment"
        if  course_contributor_score.nil?
          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :resource_num => 1)
        else
          score = course_contributor_score.resource_num.to_i + 1
          course_contributor_score.update_column(:resource_num, score)
        end
    end
  end

  # 删除某条记录相应减少课程统计数
  def down_course_score_num (course_id,user_id,type)
    course_contributor_score = CourseContributorScore.where("course_id =? and user_id =?", course_id, user_id).first
    case type
      when "HomeworkCommon"
        unless  course_contributor_score.nil?
          score = course_contributor_score.homework_journal_num.to_i - 1
          course_contributor_score.update_column(:homework_journal_num, score < 0 ? 0 : score)
        end
      # 课程留言
      when "Course"
        unless  course_contributor_score.nil?
          score = course_contributor_score.journal_num.to_i - 1
          course_contributor_score.update_column(:journal_num, score < 0 ? 0 : score)
        end
      when  "Message"
        unless  course_contributor_score.nil?
          score = course_contributor_score.message_num.to_i - 1
          course_contributor_score.update_column(:message_num, score < 0 ? 0 : score)
        end
      when "MessageReply"
        unless  course_contributor_score.nil?
          score = course_contributor_score.message_reply_num.to_i - 1
          course_contributor_score.update_column(:message_reply_num, score < 0 ? 0 : score)
        end
      when "NewReply"
        unless  course_contributor_score.nil?
          score = course_contributor_score.news_reply_num.to_i - 1
          course_contributor_score.update_column(:news_reply_num, score < 0 ? 0 : score)
        end
      when "News"
        unless  course_contributor_score.nil?
          score = course_contributor_score.news_num.to_i - 1
          course_contributor_score.update_column(:news_num, score < 0 ? 0 : score)
        end
      when "Attachment"
        unless  course_contributor_score.nil?
          score = course_contributor_score.resource_num.to_i - 1
          course_contributor_score.update_column(:resource_num, score < 0 ? 0 : score)
        end
    end
  end

  # Added by young
  # Define the course menu's link class
  # 不是数组的转化成数组，然后判断当前menu_item是否在给定的列表
  # REVIEW: 目测menu的机制，貌似不是很需要转换，再说
  def link_class(label)
    labels = label.is_a?(Array) ? label : ([] << label)
    #a = current_menu_item
    labels.include?(current_menu_item) ? 'selected' : ''

  end
  #Ended by young
  # Return true if user is authorized for controller/action, otherwise false
  def authorize_for(controller, action)
    User.current.allowed_to?({:controller => controller, :action => action}, @project)
  end

  # add by nwb
  def authorize_for_course(controller, action)
    User.current.allowed_to?({:controller => controller, :action => action}, @course)
  end

  def authorize_for_contest(controller, action)
    User.current.allowed_to?({:controller => controller, :action => action}, @contest)
  end

  # Display a link if user is authorized
  #
  # @param [String] name Anchor text (passed to link_to)
  # @param [Hash] options Hash params. This will checked by authorize_for to see if the user is authorized
  # @param [optional, Hash] html_options Options passed to link_to
  # @param [optional, Hash] parameters_for_method_reference Extra parameters for link_to
  def link_to_if_authorized(name, options = {}, html_options = nil, *parameters_for_method_reference)
    link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for(options[:controller] || params[:controller], options[:action])
  end

  def link_to_if_authorized_course(name, options = {}, html_options = nil, *parameters_for_method_reference)
    link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for_course(options[:controller] || params[:controller], options[:action])
  end

  def link_to_if_authorized_contest(name, options = {}, html_options = nil, *parameters_for_method_reference)
    link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for_contest(options[:controller] || params[:controller], options[:action])
  end
  # Displays a link to user's account page if active
  def link_to_user(user, canShowRealName = false, options={})
    if user.is_a?(User)
      if canShowRealName
        name = h(user.realname(options[:format]))
      else
        name = h(user.name(options[:format]))
      end

      #if user.active? || (User.current.admin? && user.logged?)
      #  link_to name, {:controller=> 'users', :action => 'show', id: user.id, host: Setting.host_user}, :class => user.css_classes
      #else
      #  name
      #end
      link_to name, {:controller=> 'users', :action => 'show', id: user.id, host: Setting.host_user}, :class => user.css_classes
    else
      h(user.to_s)
    end
  end

  def link_to_isuue_user(user, options={})
    if user.is_a?(User)
      if options[:format]
        name = h(user.name(options[:format]))
      else
        name = h(user.show_name)
      end
      link_to name, {:controller=> 'users', :action => 'show', id: user.id, host: Setting.host_user}, :class => "pro_info_p"
    else
      h(user.to_s)
    end
  end

  def link_to_settings_user(user, options={})
    if user.is_a?(User)
      name = h(user.name(options[:format]))
      link_to name, {:controller=> 'users', :action => 'show', id: user.id, host: Setting.host_user}, :class => "w90 c_orange fl"
    else
      h(user.to_s)
    end
  end

  #重载上面方法，增加样式显示
  def link_to_user_header user,canShowRealName=false,options={}
    if user.is_a?(User)
      if canShowRealName
        name = user.show_name
        name = user.login if name == ""
      else
        name = user.login
      end
      link_to name, {:controller=> 'users', :action => 'show', id: user.id, host: Setting.host_user}, :class => options[:class]
    else
      h(user.to_s)
    end
  end

  # Displays a link to +issue+ with its subject.
  # Examples:
  #
  #   link_to_issue(issue)                        # => Defect #6: This is the subject
  #   link_to_issue(issue, :truncate => 6)        # => Defect #6: This i...
  #   link_to_issue(issue, :subject => false)     # => Defect #6
  #   link_to_issue(issue, :project => true)      # => Foo - Defect #6
  #   link_to_issue(issue, :subject => false, :tracker => false)     # => #6
  #
  def link_to_issue(issue, options={})
    title = nil
    subject = nil
    text = options[:tracker] == false ? "##{issue.id}" : "#{issue.tracker} ##{issue.id}"
    if options[:subject] == false
      title = truncate(issue.subject, :length => 60)
    else
      subject = issue.subject
      if options[:truncate]
        subject = truncate(subject, :length => options[:truncate])
      end
    end
    s = link_to text, issue_path(issue), :class => issue.css_classes, :title => title
    s << h(": #{subject}") if subject
    s = h("#{issue.project} - ") + s if options[:project]
    s
  end

  def link_to_issue_version(issue, options={})
    title = nil
    subject = nil
    text = options[:tracker] == false ? "##{issue.id}" : "#{issue.tracker} ##{issue.id}"
    if options[:subject] == false
      title = truncate(issue.subject, :length => 60)
    else
      subject = issue.subject
      if options[:truncate]
        subject = truncate(subject, :length => 60)
      end
    end
    # status_id：3、已解决 5、已关闭
    if issue.status_id == 3
      s = link_to text, issue_path(issue), :class => "text_line_s fl", :title => title
    elsif issue.status_id == 5
      s = link_to text, issue_path(issue), :class => "text_line_s del_line fl", :title => title
    else
      s = link_to text, issue_path(issue), :class => "c_blue fl", :title => title
    end
    s << h("<span style='width:450px;display:inline-block;' class='hidden'>: #{subject}</span>".html_safe) if subject
    s = h("#{issue.project} - ") + s if options[:project]
    s
  end

  # Generates a link to an attachment.
  # Options:
  # * :text - Link text (default to attachment filename)
  # * :download - Force download (default: false)
  def link_to_short_attachment(attachment, options={})
    length = options[:length] ? options[:length]:23
    text = h(truncate(options.delete(:text) || attachment.filename, length: length, omission: '...'))
    route_method = options.delete(:download) ? :download_named_attachment_url_without_domain : :named_attachment_url_without_domain
    html_options = options.slice!(:only_path)
    url = send(route_method, attachment, attachment.filename, options)
    link_to text, url, html_options
  end

  # Generates a link to an attachment.
  # Options:
  # * :text - Link text (default to attachment filename)
  # * :download - Force download (default: false)
  def link_to_attachment(attachment, options={})
    token = options[:token] if options[:token]
    text = options.delete(:text) || attachment.filename
    route_method = options.delete(:download) ? :download_named_attachment_path : :named_attachment_path
    html_options = options.slice!(:only_path)
    url = send(route_method, attachment, attachment.filename, options)
    url << "?token=#{token}" unless token.nil?
    link_to text, url, html_options
  end

  def link_to_attachment_img(attachment, options={})
    text = options.delete(:text) || attachment.filename
    route_method = options.delete(:download) ? :download_named_attachment_path : :named_attachment_path
    html_options = options.slice!(:only_path)
    url = send(route_method, attachment, attachment.filename, options)
    image_tag  url, html_options
  end

  # Generates a link to a SCM revision
  # Options:
  # * :text - Link text (default to the formatted revision)
  def link_to_revision(revision, repository, options={})
    if repository.is_a?(Project)
      repository = repository.repository
    end
    text = options.delete(:text) || format_revision(revision)
    rev = revision.respond_to?(:identifier) ? revision.identifier : revision
    link_to(
        h(text),
        {:controller => 'repositories', :action => 'revision', :id => repository.project, :repository_id => repository.identifier_param, :rev => rev},
        :title => l(:label_revision_id, format_revision(revision))
    )
  end

  # Generates a link to a message
  def link_to_message(message, options={}, html_options = nil)
    link_to(
        truncate(message.subject, :length => 60),
        board_message_path(message.board_id, message.parent_id || message.id, {
            :r => (message.parent_id && message.id),
            :anchor => (message.parent_id ? "message-#{message.id}" : nil)
        }.merge(options)),
        html_options
    )
  end

  # Generates a link to a project if active
  # Examples:
  #
  #   link_to_project(project)                          # => link to the specified project overview
  #   link_to_project(project, {:only_path => false}, :class => "project") # => 3rd arg adds html options
  #   link_to_project(project, {}, :class => "project") # => html options with default url (project overview)
  #
  def link_to_project(project, options={}, html_options = nil)
    if project.archived?
      h(project.name)
    elsif options.key?(:action)
      ActiveSupport::Deprecation.warn "#link_to_project with :action option is deprecated and will be removed in Redmine 3.0."
      url = {:controller => 'projects', :action => 'show', :id => project}.merge(options)
      link_to project.name, url, html_options
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  def link_to_course(course, options={}, html_options = nil)
    if course.archived?
      h(course.name)
    elsif options.key?(:action)
      ActiveSupport::Deprecation.warn "#link_to_course with :action option is deprecated and will be removed in Redmine 3.0."
      url = {:controller => 'courses', :action => 'show', :id => project}.merge(options)
      link_to course.name, url, html_options
    else
      link_to course.name, course_path(course, options), html_options
    end
  end

  # Generates a link to a project settings if active
  def link_to_project_settings(project, options={}, html_options=nil)
    if project.active?
      link_to project.name, settings_project_path(project, options), html_options
    elsif project.archived?
      h(project.name)
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  def wiki_page_path(page, options={})
    url_for({:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title}.merge(options))
  end

  def thumbnail_tag(attachment)
    link_to image_tag(thumbnail_path(attachment)),
            named_attachment_path(attachment, attachment.filename),
            :title => attachment.filename
  end

  def thumbnail_issue_tag(attachment)
    imagesize = attachment.thumbnail(:size => "200*200")
    imagepath = named_attachment_path(attachment, attachment.filename)
    if imagesize
      link_to image_tag(thumbnail_path(attachment), height: '73', width: '100', class: 'issue_attachment_picture'),
              imagepath,
              :title => attachment.filename

    else
      link_to image_tag(imagepath , height: '73', width: '100', class: 'issue_attachment_picture'),
              imagepath,
              :title => attachment.filename
    end
  end

  def thumbnail_challenge_tag(attachment)
    imagepath = named_attachment_path(attachment, attachment.filename)
    image_tag(imagepath)
  end

  # 图片缩略图链接
  def thumbnail_small_tag(attachment)
    imagesize = attachment.thumbnail(:size => "200*200")
    imagepath = named_attachment_path(attachment, attachment.filename)
    if imagesize
      link_to image_tag(imagesize),
              imagepath,
              :title => attachment.filename
    else
      link_to image_tag(imagepath , height: '200', width: '250'),
              imagepath,
              :title => attachment.filename
    end
  end

  def toggle_link(name, id, options={})
    onclick = "$('##{id}').slideToggle(); "
    onclick << (options[:focus] ? "$('##{options[:focus]}').focus(); " : "this.blur(); ")
    onclick << "return false;"
    link_to(name, "javascript:void(0)", :onclick => onclick,:class => options[:class])
  end

  def image_to_function(name, function, html_options = {})
    html_options.symbolize_keys!
    tag(:input, html_options.merge({
                                       :type => "image", :src => image_path(name),
                                       :onclick => (html_options[:onclick] ? "#{html_options[:onclick]}; " : "") + "#{function};"
                                   }))
  end

  def format_activity_title(text)
    h(truncate_single_line(text, :length => 100))
  end

  def format_activity_day(date)
    date == User.current.today ? l(:label_today).titleize : format_date(date)
  end

  def format_activity_description(text)
    h(truncate(text.to_s, :length => 120).gsub(%r{[\r\n]*<(pre|code)>.*$}m, '...')).gsub(/[\r\n]+/, "<br />").html_safe
    #h(truncate(text.to_s, :length => 120).gsub(/<\/?.*?>/,"")).html_safe
  end

  def format_version_name(version)
    if version.project == @project
      h(truncate(version.name,:length=>20))
    else
      h("#{version.project} - #{truncate(version.name,:length=>20)}")
    end
  end

  def due_date_distance_in_words(date)
    if date
      l((date < Date.today ? :label_roadmap_overdue : :label_roadmap_due_in), distance_of_date_in_words(Date.today, date))
    end
  end

  # Renders a tree of projects as a nested set of unordered lists
  # The given collection may be a subset of the whole project tree
  # (eg. some intermediate nodes are private and can not be seen)
  #Modified by nie.
  def render_project_nested_lists(projects)
    s = ''
    if projects.any?
      ancestors = []
      original_project = @project
      #modified  by nie
      projects.each do |project|
        # set the project environment to please macros.
        @project = project
        if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
#          s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
          s << "<ul class='projects'>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << "<li class='project-table'><div class='#{classes}'>"
        if project.try(:project_type) == Project::ProjectType_project
          s << h(block_given? ? yield(project) : project.name)
        else
        end

        if project.try(:project_type) == Project::ProjectType_project
          unless User.current.member_of?(@project)
            s << "<span style = 'float: right;'>"
            s << watcher_link(@project, User.current)#, ['whiteButton'])
            s << "</span>"
          end
          s << (render :partial => 'projects/tracker_project', :locals => {:project => project}).to_s
        else
          s <<  (render :partial => 'projects/course', :locals => {:project => project}).to_s
        end
        s << "</div>\n"
        ancestors << project
      end
      s << ("</li></ul>\n" * ancestors.size)
      @project = original_project
    end
    s.html_safe
  end

  def render_course_nested_lists(courses)
    s = ''
    if courses.any?
      ancestors = []
      original_course = @course
      #modified  by nie
      courses.each do |course|
        # set the project environment to please macros.
        @course = course
        if (ancestors.empty? )#|| course.is_descendant_of?(ancestors.last))
          s << "<ul class=courses>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? )#&& !course.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << "<li class='project-table'><div class='#{classes}'>"

        s <<  (render :partial => 'courses/course', :locals => {:course => course}).to_s
        s << "</div>\n"
        ancestors << course
      end
      s << ("</li></ul>\n" * ancestors.size)
      @course = original_course
    end
    s.html_safe
  end


  #added by young
  def render_project_nested_lists_new(projects)
    s = ''
    if projects.any?
      ancestors = []
      original_project = @project
      projects.sort_by(&:lft).each do |project|
        # set the project environment to please macros.
        @project = project
        if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
#          s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
          s << "<ul class='projects'>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << h(block_given? ? yield(project) : project.name)
        ancestors << project
      end
      s << ("</li></ul>\n" * ancestors.size)
      @project = original_project
    end
    s.html_safe
  end
  #end
  def render_page_hierarchy(pages, node=nil, options={})
    content = ''
    if pages[node]
      content << "<ul class=\"pages-hierarchy\">\n"
      pages[node].each do |page|
        content << "<li>"
        content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title, :version => nil},
                           :title => (options[:timestamp] && page.updated_on ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
        content << "\n" + render_page_hierarchy(pages, page.id, options) if pages[page.id]
        content << "</li>\n"
      end
      content << "</ul>\n"
    end
    content.html_safe
  end

  # Renders flash messages
  def render_flash_messages
    s = ''
    flash.each do |k,v|
      s << content_tag('div', v.html_safe, :class => "alert alert-orange mb15 mt15", :id => "flash_#{k}")
    end
    s.html_safe
  end

  # Renders tabs and their content
  def render_tabs(tabs)
    if tabs.any?
      render :partial => 'common/tabs', :locals => {:tabs => tabs}
    else
      content_tag 'p', l(:label_no_data), :class => "nodata"
    end
  end

  def render_project_settings_tabs(tabs)
    if tabs.any?
      render :partial => 'common/project_tab', :locals => {:tabs => tabs}
    else
      content_tag 'p', l(:label_no_data), :class => "nodata"
    end
  end

  # Renders the project quick-jump box
  def render_project_jump_box
    return unless User.current.logged?
    projects = User.current.memberships.collect(&:project).compact.select(&:active?).uniq
    if projects.any?
      options =
          ("<option value=''>#{ l(:label_jump_to_a_project) }</option>" +
              '<option value="" disabled="disabled">---</option>').html_safe

      options << project_tree_options_for_select(projects, :selected => @project) do |p|
        { :value => project_path(:id => p, :jump => current_menu_item) }
      end

      select_tag('project_quick_jump_box', options, :onchange => 'if (this.value != \'\') { window.location = this.value; }')
    end
  end

  def project_tree_options_for_select(projects, options = {})
    s = ''
    project_tree(projects) do |project, level|
      name_prefix = (level > 0 ? '&nbsp;' * 2 * level + '&#187; ' : '').html_safe
      tag_options = {:value => project.id}
      tag_options[:title] = project.name
      if project == options[:selected] || (options[:selected].respond_to?(:include?) && options[:selected].include?(project))
        tag_options[:selected] = 'selected'
      else
        tag_options[:selected] = nil
      end
      tag_options.merge!(yield(project)) if block_given?
      s << content_tag('option', name_prefix + h(project), tag_options)
    end
    s.html_safe
  end

  # Yields the given block for each project with its level in the tree
  #
  # Wrapper for Project#project_tree
  def project_tree(projects, &block)
    Project.project_tree(projects, &block)
  end

  # 项目版本库可见权限判断：
  # modules中设置可见
  # 版本库存在
  # 版本库设置了隐藏则仅仅项目成员或超级管理员可见(hidden_repo:1 隐藏版本库)
  # return -> true 可见
  def visible_repository?(project)
    repository = Repository.where(:project_id => project.id, :type => "Repository::Gitlab").first
    if project.enabled_modules.where("name = 'repository'").empty? || repository.nil?
      result = false
    else
      result = (project.hidden_repo && !User.current.admin && !User.current.member_of?(project)) ? false : true
    end
  end

  # 判断成员在项目中的角色 member_role == Reporter/Manager/Developer 报告人员/管理人员/报告人员；
  def role_of_members_in_project(project, user_id)
    member = Member.where(:project_id => project, :user_id => user_id)
    unless member.blank?
      member_role = member.first.roles[0].to_s
    end
    return member_role
  end

  # 判断用户是不是项目成员
  def is_project_member?(user_id, project_id)
    @result = false
    mem = Member.where("user_id = ? and project_id = ?",user_id, project_id)
    unless mem.blank?
      @result = true
    end
    return @result
  end

  # 更新各类消息为已读
  def update_messsages_to_viewed(message_type, forge_message_id)
    if(message_type == "CourseMessage")
      query = CourseMessage.where(:course_message_type => ["JoinCourse", "RemoveFromCourse"],
                                  :user_id => User.current,
                                  :course_id => forge_message_id,
                                  :viewed => false)
    elsif(message_type == "ForgeMessage")
      query = ForgeMessage.where(:forge_message_type => ["ProjectInvite", "JoinProject", "RemoveFromProject"],
                                 :user_id => User.current,
                                 :project_id => forge_message_id,
                                 :viewed => false)
    elsif(message_type == "ContestMessage")
      query = ContestMessage.where(:contest_message_type => ["ContestRequestDealResult", "JoinContest", "RemoveFromContest"],
                                   :user_id => User.current,
                                   :contest_id => forge_message_id,
                                   :viewed => false)
    elsif(message_type == "BlogMessage")
      query = BlogMessage.where(:blog_message_type => "BlogComment",
                                :user_id => User.current,
                                :blog_id => forge_message_id,
                                :viewed => false)
    end
    query.update_all(:viewed => true) unless query.blank?
  end

  def show_attachment_tip container_id, container_type
    atts = Attachment.where(:container_id => container_id, :container_type => container_type, :is_public => 0)
    atts.count > 0 ? true :false
  end

  # 必须是项目成员，项目必须提交过代码
  def allow_pull_request project
    return 0 if project.gpid.nil?
    g = Gitlab.client
    # 之所以这样比较是为了解决gitlab本身的bug
    commit_count = g.project(project.gpid).try(:commit_count).to_i
    git_commit_cout = g.user_static(project.gpid, :rev => "master").count
    count = commit_count > git_commit_cout ? commit_count : git_commit_cout
    count
  end

  # 判断版本库是否初始为gitlab
  def rep_is_gitlab?(project)
    rep = project.repositories.where("type =?",  "Repository::Gitlab")
    return rep.blank? ? true :false
  end

  # 获取Gitlab版本库提交总数
  def commit_count(project, branch)
    g = Gitlab.client
    #add by hx
    if g.commits(project.gpid, :ref_name => @rev , :page=>200).count > 0
      count = 4020
    elsif g.commits(project.gpid , :page=>25, :ref_name => branch).count==0
      count = count_commits(project.gpid , 0 , 25)
    elsif g.commits(project.gpid , :page=>50, :ref_name => branch).count ==0
      count = count_commits(project.gpid , 25 , 50)+ 25 * 20
    elsif g.commits(project.gpid , :page=>75, :ref_name => branch).count ==0
      count = count_commits(project.gpid , 50 , 75)+ 50 * 20
    elsif g.commits(project.gpid , :page=>100, :ref_name => branch).count== 0
      count = count_commits(project.gpid , 75 , 100) + 75 * 20
    elsif g.commits(project.gpid , :page=>125, :ref_name => branch).count==0
      count = count_commits(project.gpid , 100 , 125) + 100 * 20
    elsif g.commits(project.gpid , :page=>150, :ref_name => branch).count==0
      count = count_commits(project.gpid , 125 , 150) + 125 * 20
    else
      count = count_commits(project.gpid , 150 ,200) + 150 * 20
    end
  end

  #add by hx
  def count_commits(project_id , left , right)
    count = 0
    (left..right).each do |page|
      if $g.commits(project_id,:page => page).count == 0
        break
      else
        count = count + $g.commits(project_id,  :ref_name => @rev, :page => page).count
      end
    end
    return count
  end

  # 获取单一gitlab项目
  def gitlab_repository(project)
    rep = Repository.where("project_id =? and type =?", project.id,"Repository::Gitlab" ).first
  end

  # 获取单一gitlab项目
  def shixun_repository(shixun)
    rep = Repository.where(:shixun_id => shixun, :type => "Repository::Gitlab" ).first
  end

  # 判断当前用户是否为项目管理员
  def is_project_manager?(user_id, project_id)
    @result = false
    mem = Member.where("user_id = ? and project_id = ?",user_id, project_id)
    unless mem.blank?
      @result = mem.first.roles.to_s.include?("Manager") ? true : false
    end
    return @result
  end

  # 公开项目资源可以引用，admin和管理员和资源上传者拥有设置公开私有权限
  def authority_pubilic_for_files(project, file)
    @result = false
    if (is_project_manager?(User.current.id, @project.id) &&  User.current.allowed_to?(:manage_files, project)) || file.author_id == User.current.id || User.current.admin &&
        project_contains_attachment?(project,file) && file.container_id == project.id && file.container_type == "Project"
      @result = true
    end
    return @result
  end

  def principals_check_box_tags(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ check_box_tag name, principal.id, false, :id => nil } #{h principal}</label>\n"
    end
    s.html_safe
  end

  # 判断模块是否可见
  def project_modules_allow project
    @project.enabled_modules.where("name = 'issue_tracking'").empty?
  end

  # 计算Pull Request的请求数目
  def pull_request_count project
    g = Gitlab.client
    g.merge_requests(project.gpid).count
  end

  #项目成员列表复选框生成
  def project_member_check_box_tags_ex name, principals
    s = ''
    principals.each do |principal|
      s << "<li class='mb5'>#{ check_box_tag name, principal.id, false, :id => nil} #{h link_to principal.userInfo, user_url_in_org( principal), :target => "_blank"}</li>\n"
    end
    s.html_safe
  end

  def render_shixun_departments
    s = ''
    if params[:q] && params[:q].lstrip.rstrip != ""
      scope = School.where("name like ?", "%#{params[:q]}%")
    else
      scope = []
    end
    scope.each do |name|
      s << "<li>#{name}</li>\n"
    end
    s.html_safe
  end

  # REDO：发现搜索列表的功能还是挺多，以前单独写的最好都调用这个方法
  # scope：[]
  def render_mirror_name scope = nil
    s = ''
    if scope.present?
      scope.each do |name|
        s << "<li>#{name}</li>\n"
      end
    end
    s.html_safe
  end

  #缺陷追踪者列表复选框生成
  def issue_watcher_check_box_tags_ex name, principals
    s = ''
    principals.each do |principal|
      s << "<li>#{ check_box_tag name, principal.id, false, :id => nil } #{h link_to principal.userInfo, user_path( principal.id)}</li>\n"
    end
    s.html_safe
  end



  #扩展的checkbox生成
  def principals_check_box_tags_ex(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ check_box_tag name, principal.id, false, :id => nil } #{h link_to principal.userInfo, user_path( principal.id)}</label>\n"
    end
    s.html_safe
  end

  # li标签checkbos扩展
  def principals_check_box_tags_li(name, principals)
    s = ''
    principals.each do |principal|
      s << "<li>#{ check_box_tag name, principal.id, false, :id => nil } #{h link_to principal.userInfo, user_path( principal.id) }</li>\n"
    end
    s.html_safe
  end

  #扩展的checkbox生成
  def principals_radio_box_tags_ex(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ radio_button_tag name, principal.id, false, :id => nil } #{h principal.userInfo }</label>\n"
    end
    s.html_safe
  end


  # Returns a string for users/groups option tags
  def principals_options_for_select(collection, selected=nil)
    s = ''
    if collection.include?(User.current)
      s << content_tag('option', "<< #{l(:label_me)} >>", :value => User.current.id)
    end
    groups = ''
    collection.sort.each do |element|
      selected_attribute = ' selected="selected"' if option_value_selected?(element, selected)
      (element.is_a?(Group) ? groups : s) << %(<option value="#{element.id}"#{selected_attribute}>#{h element.show_name}</option>)
    end
    unless groups.empty?
      s << %(<optgroup label="#{h(l(:label_group_plural))}">#{groups}</optgroup>)
    end
    s.html_safe
  end

  def assigned_options_for_select(collection, selected=nil)
    conv = Iconv.new("GBK", "utf-8")
    s = ''
    s << content_tag('option', "#{l(:label_assiged_tip)}", :value => 0)
    if collection.include?(User.current)
      s << content_tag('option', "<< #{l(:label_me)} >>", :value => User.current.id)
    end
    groups = ''
    collection.sort{|x, y| conv.iconv(x.lastname) <=> conv.iconv(y.lastname)}.each do |element|
      selected_attribute = ' selected="selected"' if option_value_selected?(element, selected)
      (element.is_a?(Group) ? groups : s) << %(<option value="#{element.id}"#{selected_attribute}>#{h element.show_name}</option>)
    end
    unless groups.empty?
      s << %(<optgroup label="#{h(l(:label_group_plural))}">#{groups}</optgroup>)
    end
    s.html_safe
  end


  # Options for the new membership projects combo-box
  def options_for_membership_project_select(principal, projects)
    options = content_tag('option', "--- #{l(:actionview_instancetag_blank_option)} ---")
    options << project_tree_options_for_select(projects) do |p|
      {:disabled => principal.projects.to_a.include?(p)}
    end
    options
  end

  # Truncates and returns the string as a single line
  def truncate_single_line(string, *args)
    truncate(string.to_s, *args).gsub(%r{[\r\n]+}m, ' ')
  end

  # Truncates at line break after 250 characters or options[:length]
  def truncate_lines(string, options={})
    length = options[:length] || 250
    if string.to_s =~ /\A(.{#{length}}.*?)$/m
      "#{$1}..."
    else
      string
    end
  end

  def anchor(text)
    text.to_s.gsub(' ', '_')
  end

  def html_hours(text)
    text.gsub(%r{(\d+)\.(\d+)}, '<span class="hours hours-int">\1</span><span class="hours hours-dec">.\2</span>').html_safe
  end

  def authoring(created, author, options={})
    l(options[:label] || :label_added_time_by, :author => link_to_user(author), :age => time_tag(created)).html_safe
  end

  def added_time(created)
    l(:label_added_time, :age => time_tag(created)).html_safe
  end

  def user_url_and_time(user_name, user_url, created)
    unless user_name.nil? || user_name == ''
      l(:label_added_time_by, :author => link_to(user_name, user_url), :age => time_tag(created)).html_safe
    else
      l(:label_added_time, :age => time_tag(created)).html_safe
    end
  end

  #huang
  def betweentime(enddate)
    ss=(DateTime.parse("#{enddate.to_date}")-DateTime.parse("#{DateTime.now.to_date}")).to_i
    return ss
  end

  def time_tag(time, *args)
    options  = args.extract_options!
    text = distance_of_time_in_words(Time.now, time)
    if @project
      content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
      # link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => User.current.time_to_date(time)},options.reverse_merge(:title => format_time(time)))
    else
      content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
    end
  end

  def syntax_highlight_lines(name, content)
    lines = []
    syntax_highlight(name, content).each_line { |line| lines << line }
    lines
  end

  def syntax_highlight(name, content)
    Redmine::SyntaxHighlighting.highlight_by_filename(content, name)
  end

  def to_path_param(path)
    str = path.to_s.split(%r{[/\\]}).select{|p| !p.blank?}.join("/")
    str.blank? ? nil : str
  end

  def reorder_links(name, url, method = :post)
    link_to(image_tag('2uparrow.png', :alt => l(:label_sort_highest)),
            url.merge({"#{name}[move_to]" => 'highest'}),
            :method => method, :title => l(:label_sort_highest)) +
        link_to(image_tag('1uparrow.png',   :alt => l(:label_sort_higher)),
                url.merge({"#{name}[move_to]" => 'higher'}),
                :method => method, :title => l(:label_sort_higher)) +
        link_to(image_tag('1downarrow.png', :alt => l(:label_sort_lower)),
                url.merge({"#{name}[move_to]" => 'lower'}),
                :method => method, :title => l(:label_sort_lower)) +
        link_to(image_tag('2downarrow.png', :alt => l(:label_sort_lowest)),
                url.merge({"#{name}[move_to]" => 'lowest'}),
                :method => method, :title => l(:label_sort_lowest))
  end

  def breadcrumb(*args)
    elements = args.flatten
    elements.any? ? content_tag('p', (args.join(" \xc2\xbb ") + " \xc2\xbb ").html_safe, :class => 'wiki_con_tit"') : nil
  end

  def other_formats_links(&block)
    concat('<p class="other-formats fl">'.html_safe + l(:label_export_to))
    yield Redmine::Views::OtherFormatsBuilder.new(self)
    concat('</p>'.html_safe)
  end

  def page_header_title
    if @project.nil? || @project.new_record?
      h(Setting.app_title)
    else
      b = []
      ancestors = (@project.root? ? [] : @project.ancestors.visible.all)
      if ancestors.any?
        root = ancestors.shift
        b << link_to_project(root, {:jump => current_menu_item}, :class => 'root')
        if ancestors.size > 2
          b << "\xe2\x80\xa6"
          ancestors = ancestors[-2, 2]
        end
        b += ancestors.collect {|p| link_to_project(p, {:jump => current_menu_item}, :class => 'ancestor') }
      end
      b << h(@project)
      b.join(" \xc2\xbb ").html_safe
    end
  end

  def html_title(*args)
    #點擊項目版本庫 多觸發一次 字符串為"/"
    #暫時解決方法 直接判斷
    if(args == ["/"])
      args = []
    end
    # first_page = FirstPage.find_by_page_type('project')
    if args.empty?
      title = @html_title || []
      if @project
        title << (@project.name.present? ? @project.name : "项目")
      elsif params[:controller] == "projects"
        title << "项目"
      elsif @welcome
        title << "创新源于实践"
      elsif @course
        title << (@course.name.nil? ? "课堂" : @course.name)
      elsif params[:controller] == "homework_bank" || params[:controller] == "question_banks" || params[:controller] == "exercise_bank"
        title << ("题库")
      elsif params[:controller] == "managements"
        title << ("后台管理")
      elsif params[:controller] == "colleges" && params[:action] == "statistics"
        title << ("#{@school.name}")
      elsif params[:controller] == "account" && params[:action] == "help"
        if params[:index]
          case params[:index]
            when "1"
              title << ("关于我们")
            when "2"
              title << ("联系我们")
            when "3"
              title << ("合作伙伴")
            when "4"
              title << ("服务协议")
            when "5"
              title << ("帮助中心")
            when "6"
              title << ("意见反馈")
          end
        else
          title << ("关于我们")
        end
      elsif params[:controller] == "courses" && params[:action] == "index"
        title << ("翻转课堂")
      elsif params[:controller] == "competitions" && params[:action] == "index"
        title << ("竞赛")
      elsif @competition
        title << (@competition.name.nil? ? "竞赛" : @competition.name)
      elsif @contest
        title << (@contest.name.nil? ? "创新源于实践" : @contest.name)
      elsif @shixun
        title << (@shixun.name.nil? ? "开发社区" : @shixun.name)
      elsif @my_shixun
        title << ("我的实训")
      elsif params[:controller] == "shixuns" && params[:action] == "index"
        title << ("开发社区")
      elsif @subject
        title << (@subject.name.nil? ? "实训课程" : @subject.name)
      elsif params[:controller] == "subjects" && params[:action] == "index"
        title << ("实训课程")
      elsif @organization
        title << (@organization.name.nil? ? "创新源于实践" : @organization.name)
      elsif @forum || params[:controller] == "forums"
        title << "讨论区"
      elsif @my_syllabuses
        title << "我的课堂"
      elsif params[:controller] == 'ecs'
        title << '专业列表'
      elsif params[:controller] == 'ec_major_schools'
        name = EcMajorSchool.find(params[:id]).name
        title << name
      elsif params[:controller] == 'ec_years'
        if params[:action] == 'training_objectives'
          title << '培养目标'
        elsif params[:action] == 'graduation_requirement'
          title << '毕业要求'
        elsif params[:action] == 'requirement_vs_objective'
          title << '毕业要求 vs 培养目标'
        elsif params[:action] == 'requirement_vs_standard'
          title << '毕业要求 vs 通用标准'
        elsif params[:action] == 'ec_course_setting' || params[:action] == 'completion_calculation'
          title << '课程体系'
        else
          title << '工程认证'
        end
      elsif params[:controller] == 'ec_courses'
        if params[:action] == 'ec_course_support_setting'
          title << '课程体系 vs 毕业要求'
        end
      elsif @user
        if !@project_community.blank? || !@user_projectlist.blank?
          title << "项目"
        elsif !@course_community.blank? || !@user_courselist.blank?
          title << "课堂"
        elsif !@contest_community.blank?
          title << @contest_community
        elsif !@manage_issues.blank?
          title << @manage_issues
        elsif !@receive_issues.blank?
          title << @receive_issues
        elsif !@manage_homeworks.blank?
          title << @manage_homeworks
        elsif !@receive_homeworks.blank?
          title << @receive_homeworks
        else
          title << @user.show_name
        end
      elsif @syllabus
        title << (@syllabus.title.nil? ? "课堂" : @syllabus.title)
      else
        title << (User.current.id == 2 ? "未登录" : User.current.show_name)
      end
      # if first_page.nil? || first_page.web_title.nil?
      #   title << Setting.app_title unless Setting.app_title == title.last
      # else
      #   title << first_page.web_title unless  first_page.web_title == title.last
      # end
      title.select {|t| !t.blank? }.join(' - ')
    else
      @html_title ||= []
      @html_title += args
    end
  end

  # Returns the theme, controller name, and action as css classes for the
  # HTML body.
  def body_css_classes
    css = []
    if theme = Redmine::Themes.theme(Setting.ui_theme)
      css << 'theme-' + theme.name
    end

    css << 'controller-' + controller_name
    css << 'action-' + action_name
    css.join(' ')
  end

  def accesskey(s)
    @used_accesskeys ||= []
    key = Redmine::AccessKeys.key_for(s)
    return nil if @used_accesskeys.include?(key)
    @used_accesskeys << key
    key
  end

  # Formats text according to system settings.
  # 2 ways to call this method:
  # * with a String: textilizable(text, options)
  # * with an object and one of its attribute: textilizable(issue, :description, options)
  def textilizable(*args)
    options = args.last.is_a?(Hash) ? args.pop : {}
    case args.size
      when 1
        obj = options[:object]
        text = args.shift
      when 2
        obj = args.shift
        attr = args.shift
        text = obj.send(attr).to_s
      else
        raise ArgumentError, 'invalid arguments to textilizable'
    end
    return '' if text.blank?
    project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
    only_path = options.delete(:only_path) == false ? false : true

    text = text.dup
    macros = catch_macros(text)
    text = Redmine::WikiFormatting.to_html(Setting.text_formatting, text, :object => obj, :attribute => attr)

    @parsed_headings = []
    @heading_anchors = {}
    @current_section = 0 if options[:edit_section_links]

    parse_sections(text, project, obj, attr, only_path, options)
    text = parse_non_pre_blocks(text, obj, macros) do |text|
      [:parse_inline_attachments, :parse_wiki_links, :parse_redmine_links].each do |method_name|
        send method_name, text, project, obj, attr, only_path, options
      end
    end
    parse_headings(text, project, obj, attr, only_path, options)

    if @parsed_headings.any?
      replace_toc(text, @parsed_headings)
    end

    text.html_safe
  end

  #
  #格式化字符串，不转义html代码
  def textAreailizable(*args)
    options = args.last.is_a?(Hash) ? args.pop : {}
    case args.size
      when 1
        obj = options[:object]
        text = args.shift
      when 2
        obj = args.shift
        attr = args.shift
        text = obj.send(attr).to_s
      else
        raise ArgumentError, 'invalid arguments to textilizable'
    end
    return '' if text.blank?
    project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
    only_path = options.delete(:only_path) == false ? false : true

    text = text.dup
    macros = catch_macros(text)
    #text = Redmine::WikiFormatting.to_html("CKEditor", text, :object => obj, :attribute => attr)

    @parsed_headings = []
    @heading_anchors = {}
    @current_section = 0 if options[:edit_section_links]

    parse_sections(text, project, obj, attr, only_path, options)
    text = parse_non_pre_blocks(text, obj, macros) do |text|
      [:parse_inline_attachments, :parse_wiki_links, :parse_redmine_links].each do |method_name|
        send method_name, text, project, obj, attr, only_path, options
      end
    end
    parse_headings(text, project, obj, attr, only_path, options)

    if @parsed_headings.any?
      replace_toc(text, @parsed_headings)
    end

    text.html_safe
  end

  def parse_non_pre_blocks(text, obj, macros)
    s = StringScanner.new(text)
    tags = []
    parsed = ''
    while !s.eos?
      s.scan(/(.*?)(<(\/)?(pre|code)(.*?)>|\z)/im)
      text, full_tag, closing, tag = s[1], s[2], s[3], s[4]
      if tags.empty?
        yield text
        inject_macros(text, obj, macros) if macros.any?
      else
        inject_macros(text, obj, macros, false) if macros.any?
      end
      parsed << text
      if tag
        if closing
          if tags.last == tag.downcase
            tags.pop
          end
        else
          tags << tag.downcase
        end
        parsed << full_tag
      end
    end
    # Close any non closing tags
    while tag = tags.pop
      parsed << "</#{tag}>"
    end
    parsed
  end

  def parse_inline_attachments(text, project, obj, attr, only_path, options)
    # when using an image link, try to use an attachment, if possible
    attachments = options[:attachments] || []
    attachments += obj.attachments if obj.respond_to?(:attachments)
    if attachments.present?
      text.gsub!(/src="([^\/"]+\.(bmp|gif|jpg|jpe|jpeg|png))"(\s+alt="([^"]*)")?/i) do |m|
        filename, ext, alt, alttext = $1.downcase, $2, $3, $4
        # search for the picture in attachments
        if found = Attachment.latest_attach(attachments, filename)
          image_url = download_named_attachment_path(found, found.filename, :only_path => only_path)
          desc = found.description.to_s.gsub('"', '')
          if !desc.blank? && alttext.blank?
            alt = " title=\"#{desc}\" alt=\"#{desc}\""
          end
          "src=\"#{image_url}\"#{alt}"
        else
          m
        end
      end
    end
  end

  # 判断课程、项目、组织是否有权限删除历史资源
  # 项目管理员或者附件的作者可以删除
  # (is_project_manager?(User.current.id, @project.id) || User.current.id == history.author_id)
  def allow_to_delete_attachment history
    attachment = history.attachment
    case attachment.try(:container_type)
      when "Project"
        result = is_project_manager?(User.current.id, attachment.container_id) || User.current.id == history.author_id || User.current.admin?
      when "Course"
        result = User.current.allowed_to?(:as_teacher, attachment.container) || User.current.id == history.author_id || User.current.admin?
      when "OrgSubfield"
        result =  User.current.id == history.author_id || User.current.admin_of_org?(attachment.container) || User.current.admin?
    end
  end

  # Wiki links
  #
  # Examples:
  #   [[mypage]]
  #   [[mypage|mytext]]
  # wiki links can refer other project wikis, using project name or identifier:
  #   [[project:]] -> wiki starting page
  #   [[project:|mytext]]
  #   [[project:mypage]]
  #   [[project:mypage|mytext]]
  def parse_wiki_links(text, project, obj, attr, only_path, options)
    text.gsub!(/(!)?(\[\[([^\]\n\|]+)(\|([^\]\n\|]+))?\]\])/) do |m|
      link_project = project
      esc, all, page, title = $1, $2, $3, $5
      if esc.nil?
        if page =~ /^([^\:]+)\:(.*)$/
          identifier, page = $1, $2
          link_project = Project.find_by_identifier(identifier) || Project.find_by_name(identifier)
          title ||= identifier if page.blank?
        end

        if link_project && link_project.wiki
          # extract anchor
          anchor = nil
          if page =~ /^(.+?)\#(.+)$/
            page, anchor = $1, $2
          end
          anchor = sanitize_anchor_name(anchor) if anchor.present?
          # check if page exists
          wiki_page = link_project.wiki.find_page(page)
          url = if anchor.present? && wiki_page.present? && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)) && obj.page == wiki_page
                  "##{anchor}"
                else
                  case options[:wiki_links]
                    when :local; "#{page.present? ? Wiki.titleize(page) : ''}.html" + (anchor.present? ? "##{anchor}" : '')
                    when :anchor; "##{page.present? ? Wiki.titleize(page) : title}" + (anchor.present? ? "_#{anchor}" : '') # used for single-file wiki export
                    else
                      wiki_page_id = page.present? ? Wiki.titleize(page) : nil
                      parent = wiki_page.nil? && obj.is_a?(WikiContent) && obj.page && project == link_project ? obj.page.title : nil
                      url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project,
                              :id => wiki_page_id, :version => nil, :anchor => anchor, :parent => parent)
                  end
                end
          link_to(title.present? ? title.html_safe : h(page), User.current.logged? ? url : signin_url_without_domain, :class => ('wiki-page' + (wiki_page ? '' : ' new')))
        else
          # project or wiki doesn't exist
          all
        end
      else
        all
      end
    end
  end

  def select_option_helper option
    tmp = Hash.new
    tmp={"" => ""}
    if option.nil?
    else
      option.each do |project|
        tmp[project.name] = project.id
      end
    end
    tmp
  end
  # Redmine links
  #
  # Examples:
  #   Issues:
  #     #52 -> Link to issue #52
  #   Changesets:
  #     r52 -> Link to revision 52
  #     commit:a85130f -> Link to scmid starting with a85130f
  #   Documents:
  #     document#17 -> Link to document with id 17
  #     document:Greetings -> Link to the document with title "Greetings"
  #     document:"Some document" -> Link to the document with title "Some document"
  #   Versions:
  #     version#3 -> Link to version with id 3
  #     version:1.0.0 -> Link to version named "1.0.0"
  #     version:"1.0 beta 2" -> Link to version named "1.0 beta 2"
  #   Attachments:
  #     attachment:file.zip -> Link to the attachment of the current object named file.zip
  #   Source files:
  #     source:some/file -> Link to the file located at /some/file in the project's repository
  #     source:some/file@52 -> Link to the file's revision 52
  #     source:some/file#L120 -> Link to line 120 of the file
  #     source:some/file@52#L120 -> Link to line 120 of the file's revision 52
  #     export:some/file -> Force the download of the file
  #   Forum messages:
  #     message#1218 -> Link to message with id 1218
  #
  #   Links can refer other objects from other projects, using project identifier:
  #     identifier:r52
  #     identifier:document:"Some document"
  #     identifier:version:1.0.0
  #     identifier:source:some/file
  def parse_redmine_links(text, default_project, obj, attr, only_path, options)
    text.gsub!(%r{([\s\(,\-\[\>]|^)(!)?(([a-z0-9\-_]+):)?(attachment|document|version|forum|news|message|project|commit|source|export)?(((#)|((([a-z0-9\-_]+)\|)?(r)))((\d+)((#note)?-(\d+))?)|(:)([^"\s<>][^\s<>]*?|"[^"]+?"))(?=(?=[[:punct:]][^A-Za-z0-9_/])|,|\s|\]|<|$)}) do |m|
      leading, esc, project_prefix, project_identifier, prefix, repo_prefix, repo_identifier, sep, identifier, comment_suffix, comment_id = $1, $2, $3, $4, $5, $10, $11, $8 || $12 || $18, $14 || $19, $15, $17
      link = nil
      project = default_project
      if project_identifier
        project = Project.visible.find_by_identifier(project_identifier)
      end
      if esc.nil?
        if prefix.nil? && sep == 'r'
          if project
            repository = nil
            if repo_identifier
              repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
            else
              repository = project.repository
            end
            # project.changesets.visible raises an SQL error because of a double join on repositories
            if repository && (changeset = Changeset.visible.find_by_repository_id_and_revision(repository.id, identifier))
              link = link_to(h("#{project_prefix}#{repo_prefix}r#{identifier}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.revision},
                             :class => 'changeset',
                             :title => truncate_single_line(changeset.comments, :length => 100))
            end
          end
        elsif sep == '#'
          oid = identifier.to_i
          case prefix
            when nil
              if oid.to_s == identifier && issue = Issue.visible.find_by_id(oid, :include => :status)
                anchor = comment_id ? "note-#{comment_id}" : nil
                link = link_to("##{oid}", {:only_path => only_path, :controller => 'issues', :action => 'show', :id => oid, :anchor => anchor},
                               :class => issue.css_classes,
                               :title => "#{truncate(issue.subject, :length => 100)} (#{issue.status.name})")
              end
            when 'document'
              if document = Document.visible.find_by_id(oid)
                link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
                               :class => 'document'
              end
            when 'version'
              if version = Version.visible.find_by_id(oid)
                link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
                               :class => 'version'
              end
            when 'message'
              if message = Message.visible.find_by_id(oid, :include => :parent)
                link = link_to_message(message, {:only_path => only_path}, :class => 'message')
              end
            when 'forum'
              if board = Board.visible.find_by_id(oid)
                link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
                               :class => 'board'
              end
            when 'news'
              if news = News.visible.find_by_id(oid)
                link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
                               :class => 'news'
              end
            when 'project'
              if p = Project.visible.find_by_id(oid)
                link = link_to_project(p, {:only_path => only_path}, :class => 'project')
              end
          end
        elsif sep == ':'
          # removes the double quotes if any
          name = identifier.gsub(%r{^"(.*)"$}, "\\1")
          case prefix
            when 'document'
              if project && document = project.documents.visible.find_by_title(name)
                link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
                               :class => 'document'
              end
            when 'version'
              if project && version = project.versions.visible.find_by_name(name)
                link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
                               :class => 'version'
              end
            when 'forum'
              if project && board = project.boards.visible.find_by_name(name)
                link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
                               :class => 'board'
              end
            when 'news'
              if project && news = project.news.visible.find_by_title(name)
                link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
                               :class => 'news'
              end
            when 'commit', 'source', 'export'
              if project
                repository = nil
                if name =~ %r{^(([a-z0-9\-_]+)\|)(.+)$}
                  repo_prefix, repo_identifier, name = $1, $2, $3
                  repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
                else
                  repository = project.repository
                end
                if prefix == 'commit'
                  if repository && (changeset = Changeset.visible.where("repository_id = ? AND scmid LIKE ?", repository.id, "#{name}%").first)
                    link = link_to h("#{project_prefix}#{repo_prefix}#{name}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.identifier},
                                   :class => 'changeset',
                                   :title => truncate_single_line(changeset.comments, :length => 100)
                  end
                else
                  if repository && User.current.allowed_to?(:browse_repository, project)
                    name =~ %r{^[/\\]*(.*?)(@([^/\\@]+?))?(#(L\d+))?$}
                    path, rev, anchor = $1, $3, $5
                    link = link_to h("#{project_prefix}#{prefix}:#{repo_prefix}#{name}"), {:controller => 'repositories', :action => (prefix == 'export' ? 'raw' : 'entry'), :id => project, :repository_id => repository.identifier_param,
                                                                                           :path => to_path_param(path),
                                                                                           :rev => rev,
                                                                                           :anchor => anchor},
                                   :class => (prefix == 'export' ? 'source download' : 'source')
                  end
                end
                repo_prefix = nil
              end
            when 'attachment'
              attachments = options[:attachments] || (obj && obj.respond_to?(:attachments) ? obj.attachments : nil)
              if attachments && attachment = Attachment.latest_attach(attachments, name)
                link = link_to_attachment(attachment, :only_path => only_path, :download => true, :class => 'attachment')
              end
            when 'project'
              if p = Project.visible.where("identifier = :s OR LOWER(name) = :s", :s => name.downcase).first
                link = link_to_project(p, {:only_path => only_path}, :class => 'project')
              end
          end
        end
      end
      (leading + (link || "#{project_prefix}#{prefix}#{repo_prefix}#{sep}#{identifier}#{comment_suffix}"))
    end
  end

  HEADING_RE = /(<h(\d)( [^>]+)?>(.+?)<\/h(\d)>)/i unless const_defined?(:HEADING_RE)

  def parse_sections(text, project, obj, attr, only_path, options)
    return unless options[:edit_section_links]
    text.gsub!(HEADING_RE) do
      heading = $1
      @current_section += 1
      if @current_section > 1
        content_tag('div',
                    link_to(image_tag('edit.png'), options[:edit_section_links].merge(:section => @current_section)),
                    :class => 'contextual',
                    :title => l(:button_edit_section)) + heading.html_safe
      else
        heading
      end
    end
  end

  # Headings and TOC
  # Adds ids and links to headings unless options[:headings] is set to false
  def parse_headings(text, project, obj, attr, only_path, options)
    return if options[:headings] == false

    text.gsub!(HEADING_RE) do
      level, attrs, content = $2.to_i, $3, $4
      item = strip_tags(content).strip
      anchor = sanitize_anchor_name(item)
      # used for single-file wiki export
      anchor = "#{obj.page.title}_#{anchor}" if options[:wiki_links] == :anchor && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version))
      @heading_anchors[anchor] ||= 0
      idx = (@heading_anchors[anchor] += 1)
      if idx > 1
        anchor = "#{anchor}-#{idx}"
      end
      @parsed_headings << [level, anchor, item]
      "<a name=\"#{anchor}\"></a>\n<h#{level} #{attrs}>#{content}<a href=\"##{anchor}\" class=\"wiki-anchor\">&para;</a></h#{level}>"
    end
  end

  MACROS_RE = /(
                (!)?                        # escaping
                (
                \{\{                        # opening tag
                ([\w]+)                     # macro name
                (\(([^\n\r]*?)\))?          # optional arguments
                ([\n\r].*?[\n\r])?          # optional block of text
                \}\}                        # closing tag
                )
               )/mx unless const_defined?(:MACROS_RE)

  MACRO_SUB_RE = /(
                  \{\{
                  macro\((\d+)\)
                  \}\}
                  )/x unless const_defined?(:MACRO_SUB_RE)

  # Extracts macros from text
  def catch_macros(text)
    macros = {}
    text.gsub!(MACROS_RE) do
      all, macro = $1, $4.downcase
      if macro_exists?(macro) || all =~ MACRO_SUB_RE
        index = macros.size
        macros[index] = all
        "{{macro(#{index})}}"
      else
        all
      end
    end
    macros
  end

  # Executes and replaces macros in text
  def inject_macros(text, obj, macros, execute=true)
    text.gsub!(MACRO_SUB_RE) do
      all, index = $1, $2.to_i
      orig = macros.delete(index)
      if execute && orig && orig =~ MACROS_RE
        esc, all, macro, args, block = $2, $3, $4.downcase, $6.to_s, $7.try(:strip)
        if esc.nil?
          h(exec_macro(macro, obj, args, block) || all)
        else
          h(all)
        end
      elsif orig
        h(orig)
      else
        h(all)
      end
    end
  end

  TOC_RE = /<p>\{\{([<>]?)toc\}\}<\/p>/i unless const_defined?(:TOC_RE)

  # Renders the TOC with given headings
  def replace_toc(text, headings)
    text.gsub!(TOC_RE) do
      # Keep only the 4 first levels
      headings = headings.select{|level, anchor, item| level <= 4}
      if headings.empty?
        ''
      else
        div_class = 'toc'
        div_class << ' right' if $1 == '>'
        div_class << ' left' if $1 == '<'
        out = "<ul class=\"#{div_class}\"><li>"
        root = headings.map(&:first).min
        current = root
        started = false
        headings.each do |level, anchor, item|
          if level > current
            out << '<ul><li>' * (level - current)
          elsif level < current
            out << "</li></ul>\n" * (current - level) + "</li><li>"
          elsif started
            out << '</li><li>'
          end
          out << "<a href=\"##{anchor}\">#{item}</a>"
          current = level
          started = true
        end
        out << '</li></ul>' * (current - root)
        out << '</li></ul>'
      end
    end
  end

  # Same as Rails' simple_format helper without using paragraphs
  def simple_format_without_paragraph(text)
    text.to_s.
        gsub(/\r\n?/, "\n").                    # \r\n and \r -> \n
        gsub(/\n\n+/, "<br /><br />").          # 2+ newline  -> 2 br
        gsub(/([^\n]\n)(?=[^\n])/, '\1<br />'). # 1 newline   -> br
        html_safe
  end

  def wiki_simple_format_without_paragraph(text)
    text.to_s.
        gsub(/\r\n?/, "\n").                    # \r\n and \r -> \n
        gsub(/\n\n+/, "<br /><br />").          # 2+ newline  -> 2 br
        gsub(/([^\n]\n)(?=[^\n])/, '\1<br />'). # 1 newline   -> br
        gsub("&amp;nbsp", " ").           #gsub(/<\/?.*?>/,"").
        gsub(/&lt;\/?.*?&gt;/, "").
        gsub("&quot;", "'").
        html_safe
  end

  def lang_options_for_select(blank=true)
    { 'Chinese简体中文 '=> 'zh', :English => :en}
  end

  def label_tag_for(name, option_tags = nil, options = {})
    label_text = l(("field_"+field.to_s.gsub(/\_id$/, "")).to_sym) + (options.delete(:required) ? @template.content_tag("span", " *", :class => "required"): "")
    content_tag("label", label_text)
  end

  def labelled_form_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    if args.first.is_a?(Symbol)
      options.merge!(:as => args.shift)
    end
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    form_for(*args, &proc)
  end

  def labelled_fields_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    fields_for(*args, &proc)
  end

  def labelled_remote_form_for(*args, &proc)
    ActiveSupport::Deprecation.warn "ApplicationHelper#labelled_remote_form_for is deprecated and will be removed in Redmine 2.2."
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder, :remote => true})
    form_for(*args, &proc)
  end

  def error_messages_for(*objects)
    html = ""
    # modified by fq
    if objects.first.is_a?(Array)
      objects = objects.first
    end
    # end
    if objects != nil
      objects = objects.map {|o| o.is_a?(String) ? instance_variable_get("@#{o}") : o}.compact
      errors = objects.map {|o| o.errors.full_messages}.flatten
      if errors.any?
        html << "<div id='errorExplanation'><ul class='pt10'>\n"
        errors.each do |error|
          ###by xianbo
          if(error!=l(:label_repository_path_not_null))
            html << "<li>#{h error}</li>\n"
          end
          ###xianbo
        end
        ###by xianbo
        unless params[:repository].nil?
          if params[:repository][:upassword]==""
            html << "<li>"+ l(:label_password_not_null) +"</li>\n"
          end
        end
        ###xianbo
        html << "</ul></div>\n"
      end
    end
    html.html_safe
  end

  def delete_link(url, options={})
    options = {
        :method => :delete,
        :data => {:confirm => l(:text_are_you_sure)},
        :class => 'icon icon-del'
    }.merge(options)

    link_to l(:button_delete), url, options
  end

  def update_status_link(user)
    url = {:controller => 'users', :action => 'update', :id => user, :page => params[:page], :status => params[:status], :tab => nil}

    if user.locked?
      link_to "解锁", url.merge(:user => {:status => User::STATUS_ACTIVE}), :method => :put, :class => 'mr10 link-color-blue'
    elsif user.registered?
      link_to "激活", url.merge(:user => {:status => User::STATUS_ACTIVE}), :method => :put, :class => 'mr10 link-color-blue'
    elsif user != User.current
      link_to "加锁", url.merge(:user => {:status => User::STATUS_LOCKED}), :method => :put, :class => 'mr10 link-color-blue'
    end
  end


  def delete_version_link(url, options={})
    options = {
        :method => :delete,
        :data => {:confirm => l(:text_are_you_sure)},
        :class => 'icon icon-del'
    }.merge(options)

    link_to "", url, options
  end

  def delete_link_version(url, options={})
    options = {
        :method => :delete,
        :data => {:confirm => l(:text_are_you_sure)},
        :class => 'c_purple'
    }.merge(options)

    link_to l(:button_delete), url, options
  end



  def delete_new_link(url, options={})
    options = {
        :method => :delete,
        :data => {:confirm => l(:text_are_you_sure)},
        :class => "c_purple"
    }.merge(options)

    link_to l(:button_delete), url, options
  end

  def preview_link(url, form, target='preview', options={})
    content_tag 'a', l(:label_preview), {
        :href => "#",
        :onclick => %|submitPreview("#{escape_javascript url_for(url)}", "#{escape_javascript form}", "#{escape_javascript target}"); return false;|,
        :accesskey => accesskey(:preview)
    }.merge(options)
  end

  def link_to_function(name, function, html_options={})
    content_tag(:a, name, {:href => '#', :onclick => "#{function}; return false;"}.merge(:class => "BlueCirBtnMini ml10",:style => "display:inline-block; height:20px; line-height:20px;"))
  end

  def link_to_function_none(name, function, html_options={})
    content_tag(:a, name, {:href => '#', :onclick => "#{function}; return false;"}.merge(:style => "display:inline-block; height:20px; line-height:20px;"))
  end

  # Helper to render JSON in views
  def raw_json(arg)
    arg.to_json.to_s.gsub('/', '\/').html_safe
  end

  def back_url
    url = params[:back_url]
    if url.nil? && referer = request.env['HTTP_REFERER']
      url = CGI.unescape(referer.to_s)
    end
    url
  end

  def back_url_hidden_field_tag
    url = back_url
    hidden_field_tag('back_url', url, :id => nil) unless url.blank?
  end

  def check_all_links(form_name)
    link_to_function_none(l(:button_check_all), "checkAll('#{form_name}', true)") + "&nbsp;".html_safe + " | "+ "&nbsp;".html_safe +
        link_to_function_none(l(:button_uncheck_all), "checkAll('#{form_name}', false)")
  end

  # 本次修改，修改为只显示关闭的所占%比
  def progress_bar(pcts, options={})
    pcts = [pcts] unless pcts.is_a?(Array)
    pcts = pcts.collect(&:round)
    # pcts[1] = pcts[1] + pcts[0]
    pcts << (100 - pcts[0])
    width = options[:width] || '100px;'
    legend = options[:legend] || ''
    content_tag('span',
                content_tag('tr',
                            (pcts[0] > 0 ? content_tag('span', '', :style => "width: #{pcts[0]}%;", :class => 'roadmap_progressbar_inner', :title => "已关闭：#{pcts[0]}%") : ''.html_safe) #+
                # (pcts[1] > 0 ? content_tag('td', '', :style => "width: #{pcts[1]}%;", :class => 'done', :title => "开发中：#{pcts[1]}%") : ''.html_safe) +
                #(pcts[1] > 0 ? content_tag('span', '', :style => "width: #{pcts[1]}%;", :class => 'roadmap_progressbar ml5', :title => "未完成：#{pcts[1]}%") : ''.html_safe), :style => "width: #{width}"
                ), :class => 'roadmap_progressbar ml5').html_safe
    # +  content_tag('p', legend, :class => 'percent').html_safe
  end

  def checked_image(checked=true)
    if checked
      image_tag 'toggle_check.png'
    end
  end

  def context_menu(url)
    unless @context_menu_included
      content_for :header_tags do
        javascript_include_tag('context_menu') +
            stylesheet_link_tag('context_menu')
      end
      if l(:direction) == 'rtl'
        content_for :header_tags do
          stylesheet_link_tag('context_menu_rtl')
        end
      end
      @context_menu_included = true
    end
    javascript_tag "contextMenuInit('#{ url_for(url) }')"
  end

  def calendar_for(field_id,start_day=nil)
    include_calendar_headers_tags(start_day)
    javascript_tag("$(function() { $('##{field_id}').datepicker(datepickerOptions); });")
  end

  def include_calendar_headers_tags(start_day=nil)
    if start_day.nil?
      unless @calendar_headers_tags_included
        @calendar_headers_tags_included = true
        content_for :header_tags do
          start_of_week = Setting.start_of_week
          start_of_week = l(:general_first_day_of_week, :default => '1') if start_of_week.blank?
          # Redmine uses 1..7 (monday..sunday) in settings and locales
          # JQuery uses 0..6 (sunday..saturday), 7 needs to be changed to 0
          start_of_week = start_of_week.to_i % 7

          tags = javascript_tag(
              "var datepickerOptions={dateFormat: 'yy-mm-dd', firstDay: #{start_of_week}, " +
                  "showOn: 'button', buttonImageOnly: true, buttonImage: '" +
                  path_to_image('/images/public_icon.png') +
                  "', showButtonPanel: true, showWeek: true, showOtherMonths: true, selectOtherMonths: true};")
          jquery_locale = l('jquery.locale', :default => current_language.to_s)
          unless jquery_locale == 'en'
            tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js")
          end
          tags
        end
      end
    else
      unless @calendar_headers_tags_included
        @calendar_headers_tags_included = true
        content_for :header_tags do
          start_of_week = Setting.start_of_week
          start_of_week = l(:general_first_day_of_week, :default => '1') if start_of_week.blank?
          # Redmine uses 1..7 (monday..sunday) in settings and locales
          # JQuery uses 0..6 (sunday..saturday), 7 needs to be changed to 0
          start_of_week = start_of_week.to_i % 7

          tags = javascript_tag(
              "var datepickerOptions={dateFormat: 'yy-mm-dd',minDate: new Date(), firstDay: #{start_of_week}, " +
                  "showOn: 'button', buttonImageOnly: true, buttonImage: '" +
                  path_to_image('/images/public_icon.png') +
                  "', showButtonPanel: true, showWeek: true, showOtherMonths: true, selectOtherMonths: true, onClose: function(dateText, inst) {TimeClose(dateText,inst);}, beforeShow : function(input){TimeBeforeShow(input);} };")
          jquery_locale = l('jquery.locale', :default => current_language.to_s)
          unless jquery_locale == 'en'
            tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js")
          end
          tags
        end
      end
    end

  end

  # Overrides Rails' stylesheet_link_tag with themes and plugins support.
  # Examples:
  #   stylesheet_link_tag('styles') # => picks styles.css from the current theme or defaults
  #   stylesheet_link_tag('styles', :plugin => 'foo) # => picks styles.css from plugin's assets
  #
  def stylesheet_link_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}
    plugin = options.delete(:plugin)
    sources = sources.map do |source|
      if plugin
        "/plugin_assets/#{plugin}/stylesheets/#{source}"
      elsif current_theme && current_theme.stylesheets.include?(source)
        current_theme.stylesheet_path(source)
      else
        source
      end
    end
    super sources, options
  end

  # Overrides Rails' image_tag with themes and plugins support.
  # Examples:
  #   image_tag('image.png') # => picks image.png from the current theme or defaults
  #   image_tag('image.png', :plugin => 'foo) # => picks image.png from plugin's assets
  #
  def image_tag(source, options={})
    if plugin = options.delete(:plugin)
      source = "/plugin_assets/#{plugin}/images/#{source}"
    elsif current_theme && current_theme.images.include?(source)
      source = current_theme.image_path(source)
    end
    super source, options
  end

  # Overrides Rails' javascript_include_tag with plugins support
  # Examples:
  #   javascript_include_tag('scripts') # => picks scripts.js from defaults
  #   javascript_include_tag('scripts', :plugin => 'foo) # => picks scripts.js from plugin's assets
  #
  def javascript_include_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}

    @sources ||= []
    sources = sources.delete_if do|source|
      @sources.include?(source)
    end
    @sources += sources

    if plugin = options.delete(:plugin)
      sources = sources.map do |source|
        if plugin
          "/plugin_assets/#{plugin}/javascripts/#{source}"
        else
          source
        end
      end
    end

    if sources && !sources.empty?
      super(sources, options)
    else
      ''
    end
  end

  def content_for(name, content = nil, &block)
    @has_content ||= {}
    @has_content[name] = true
    super(name, content, &block)
  end

  def has_content?(name)
    (@has_content && @has_content[name]) || false
  end

  def sidebar_content?
    has_content?(:sidebar) || view_layouts_base_sidebar_hook_response.present?
  end

  def view_layouts_base_sidebar_hook_response
    @view_layouts_base_sidebar_hook_response ||= call_hook(:view_layouts_base_sidebar)
  end

  def email_delivery_enabled?
    !!ActionMailer::Base.perform_deliveries
  end

  # Returns the avatar image tag for the given +user+ if avatars are enabled
  # +user+ can be a User or a string that will be scanned for an email address (eg. 'joe <joe@foo.bar>')
  def avatar(user, options = { })
    if Setting.gravatar_enabled?
      options.merge!({:ssl => (request && request.ssl?), :default => Setting.gravatar_default})
      email = nil
      if user.respond_to?(:mail)
        email = user.mail
      elsif user.to_s =~ %r{<(.+?)>}
        email = $1
      end
      return gravatar(email.to_s.downcase, options) unless email.blank? rescue nil
      #options ={"class"  => ["avatar2"],"width" =>["80px"],"height" =>["80px"]}
      #return image_tag url_to_avatar(user), options
    else
      ''
    end
  end

  def sanitize_anchor_name(anchor)
    if ''.respond_to?(:encoding) || RUBY_PLATFORM == 'java'
      anchor.gsub(%r{[^\s\-\p{Word}]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    else
      # TODO: remove when ruby1.8 is no longer supported
      anchor.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    end
  end

  # Returns the javascript tags that are included in the html layout head
  def javascript_heads
    tags = javascript_include_tag('jquery-1.8.3-ui-1.9.2-ujs-2.0.3', 'application', 'jquery.colorbox-min', 'baiduTemplate')
    unless User.current.pref.warn_on_leaving_unsaved == '0'
      tags << "\n".html_safe + javascript_tag("$(window).load(function(){ warnLeavingUnsaved('#{escape_javascript l(:text_warn_on_leaving_unsaved)}'); });")
    end
    tags
  end
  def javascript_edu_index_heads
    tags = javascript_include_tag('jquery-1.8.3-ui-1.9.2-ujs-2.0.3', 'application')
    unless User.current.pref.warn_on_leaving_unsaved == '0'
      tags << "\n".html_safe + javascript_tag("$(window).load(function(){ warnLeavingUnsaved('#{escape_javascript l(:text_warn_on_leaving_unsaved)}'); });")
    end
    tags
  end

  def hubspot_head
    tags = javascript_include_tag('hubspot/messenger.min', 'hubspot/messenger-theme-future')
    tags << stylesheet_link_tag('hubspot/messenger', 'hubspot/messenger-theme-future', 'hubspot/messenger-theme-flat')
  end

  def bootstrap_head
    tags = stylesheet_link_tag('bootstrap/bootstrap.min', 'bootstrap/bootstrap-theme.min')
    tags << javascript_include_tag('bootstrap/affix')
    tags << javascript_include_tag('bootstrap/alert')
    tags << javascript_include_tag('bootstrap/button')
    tags << javascript_include_tag('bootstrap/carousel')
    tags << javascript_include_tag('bootstrap/collapse')
    tags << javascript_include_tag('bootstrap/dropdown')
    tags << javascript_include_tag('bootstrap/modal')
    tags << javascript_include_tag('bootstrap/popover')
    tags << javascript_include_tag('bootstrap/scrollspy')
    tags << javascript_include_tag('bootstrap/tab')
    tags << javascript_include_tag('bootstrap/tooltip')
    tags << javascript_include_tag('bootstrap/transition')
    tags
  end

  def favicon
    "<link rel='shortcut icon' type='image/x-icon' href='https://www.educoder.net/favicon.ico?1537840119' />".html_safe
  end

  def robot_exclusion_tag
    '<meta name="robots" content="noindex,follow,noarchive" />'.html_safe
  end

  # Returns true if arg is expected in the API response
  def include_in_api_response?(arg)
    unless @included_in_api_response
      param = params[:include]
      @included_in_api_response = param.is_a?(Array) ? param.collect(&:to_s) : param.to_s.split(',')
      @included_in_api_response.collect!(&:strip)
    end
    @included_in_api_response.include?(arg.to_s)
  end

  # Returns options or nil if nometa param or X-Redmine-Nometa header
  # was set in the request
  def api_meta(options)
    if params[:nometa].present? || request.headers['X-Redmine-Nometa']
      # compatibility mode for activeresource clients that raise
      # an error when unserializing an array with attributes
      nil
    else
      options
    end
  end

  # Add by Tao
  def url_to_avatar(source)
    source = nil if source.kind_of?(String)
    get_avatar(source)
  end
  # Endof Tao's code

  # cxt
  # 获取认证照片
  def url_to_auth_img(user_id, type)
    if File.exist?(disk_auth_filename("UserAuthentication",user_id,type))
      File.join(relative_path,avatar_directory("UserAuthentication"), auth_filename(user_id,type))
    else
      File.join(relative_path,avatar_directory("UserAuthentication"),type)
    end
  end

  def url_to_coop_img(type)
    File.join(relative_path,avatar_directory('type'),"*")
  end

  # 讨论区的平台icon     ["Java", "C", "C++", "Python2.7", "Python3.6", "MySQL/Java", "Html", "JFinal", "Docker", "Ethereum", "Dynamips", "MachineLearning", "Verilog","Spark","MySQL/Python3.6","PHP","PHP/Web","Hadoop", "Golang","Android","Matlab","Shell"]

  def url_to_platform_icon language
    case language
      when 'Python2.7', 'Python3.6'
        File.join(relative_path,avatar_directory("Platform"), 'Python')
      when 'MySQL/Java', 'MySQL/Python3.6'
        File.join(relative_path,avatar_directory("Platform"), 'MySQL')
      when 'PHP/Web'
        File.join(relative_path,avatar_directory("Platform"), 'PHP')
      when 'C#'
        File.join(relative_path,avatar_directory("Platform"), 'Cxp')
      when 'C/C++'
        File.join(relative_path,avatar_directory("Platform"), 'Cjia')
      when 'Angular2+'
        File.join(relative_path,avatar_directory("Platform"), 'Angular2jia')
      else
        File.join(relative_path,avatar_directory("Platform"), language.nil? ? "" : language)
    end
  end

  def identity_authentication_status user
    authorization = user.apply_actions.where(:container_type => "TrialAuthorization").last
    case user.try(:certification)
      when 0
        if authorization.try(:status) == 0
          "处理中"
        else
          "未授权"
        end
      when 1
        "已授权"
      when 2
        "被拒绝"
    end
  end

  def user_certification_status user
    status = ""
    if user.authentication
      status = "已实名认证"
    else
      apply_auth = ApplyUserAuthentication.where(:user_id => user.id, :auth_type => 1).last
      if apply_auth && apply_auth.status == 0
        status = "实名认证中"
      elsif apply_auth && apply_auth.status == 2
        status = "实名认证未通过"
      else
        status = "未实名认证"
      end
    end
  end

  def pro_certification_status user
    status = ""
    if user.professional_certification
      status = "已职业认证"
    else
      apply_auth = ApplyUserAuthentication.where(:user_id => user.id, :auth_type => 2).last
      if apply_auth && apply_auth.status == 0
        status = "职业认证中"
      elsif apply_auth && apply_auth.status == 2
        status = "职业认证未通过"
      else
        status = "未职业认证"
      end
    end
  end

  def shixun_authentication_status shixun
    case shixun.try(:status)
      when 0,nil
        "编辑中"
      when 1
        "待审核"
      when 2
        "已发布"
      when 3
        "已关闭"
    end
  end

  def date_format_local(time)
    date = time.strftime("%Y年%m月%d日")
  end

  #当TAG数量过多时，更多链接
  #1代表是user类型   2代表是project类型  3代表是issue类型   4代表需求 9代表课程
  def more_tags id,object_flag
    a= 1
    case object_flag
      when "1"
        s = link_to l(:label_more_tags),:controller => "users", :action => "show", :id => id
      when "2"
        s = link_to l(:label_more_tags),:controller => "projects", :action => "show", :id => id
      when "3"
        s = link_to l(:label_more_tags),:controller => "issues", :action => "show", :id => id
      when "4"
        s = link_to l(:label_more_tags),:controller => "bids", :action => "show", :id => id
      when "9"
        s = link_to l(:label_more_tags),:controller => "courses", :action => "show", :id => id
    end
    s
  end

  def get_user_identity identity
    s = ""
    case identity
      when 0
        s = '教师'
      when 1
        s = '学生'
      when 2
        s = '组织'
      when 3
        s= '开发者'
      else
        s = '学生'
    end
    s
  end

  # 获取issue类型
  def get_issue_type_new tracker_id
    case tracker_id
      when 1
        "缺陷"
      when 2
        "功能"
      when 3
        "支持"
      when 4
        "任务"
      when 5
        "周报"
    end
  end

  def get_memo
    @new_memo = Memo.new
    @public_forum = Forum.find(1) rescue ActiveRecord::RecordNotFound
  end

  #获取用户未过期的课程
  def get_user_course user
    courses_doing = []
    user.courses.select("courses.*,(SELECT MAX(created_at)  FROM `course_activities` WHERE course_activities.course_id = courses.id) AS a").order("a desc").each do |course|
      if !course_endTime_timeout?(course)
        courses_doing.push course
      end
    end
    courses_doing
  end

  def attachment_history_candown attachment_history
    if attachment_history.container_type == "Course"
      course = Course.find(attachment_history.container_id)
      candown = User.current.member_of_course?(course) || (course.is_public && attachment_history.is_public == 1)
    elsif attachment_history.container_type == "Project"
      project = Project.find(attachment_history.container_id)
      candown = User.current.member_of?(project) || (project.is_public && attachment_history.is_public == 1)
    elsif attachment_history.container_type == "OrgSubfield"
      org = OrgSubfield.find(attachment_history.container_id).organization
      candown = User.current.member_of_org?(org) || (org.organization.is_public && attachment_history.is_public == 1 && (User.current.logged? || org.organization.allow_guest_download?))
    end
  end

  def resource_bank_candown resource,type
    candown = false
    if resource.is_public
      candown = true
    end
    if type == 'syllabus'
      candown = syllabus_course_member(User.current, resource.course) || User.current.admin?
    end
    candown
  end

  # 课程某个班级的成员
  def syllabus_course_member user, course
    result = false
    syllabus = course.syllabus
    if syllabus
      syllabus.courses.each do |course|
        if user.member_of_course?(course)
          result = true
          return result
        end
      end
    end
    result
  end

  def attachment_candown attachment
    candown = false
    if attachment.container
      if attachment.container.class.to_s=="PhoneAppVersion"
        candown = true
      elsif attachment.container.class.to_s != "HomeworkAttach" && attachment.container.class.to_s != "StudentWork" && attachment.container.class.to_s != "ContestantWork" && (attachment.container.has_attribute?(:project) || attachment.container.has_attribute?(:project_id)) && attachment.container.project
        project = attachment.container.project
        candown= User.current.member_of?(project) || (project.is_public && attachment.is_public == 1)
      elsif attachment.container.is_a?(Project)
        project = attachment.container
        candown = User.current.member_of?(project) || (attachment.is_public == 1) || attachment.get_status_by_attach(User.current.id) == 2
      elsif (attachment.container.has_attribute?(:board) || attachment.container.has_attribute?(:board_id)) && attachment.container.board &&
          attachment.container.board.project
        project = attachment.container.board.project
        candown = User.current.member_of?(project) || (project.is_public && attachment.is_public == 1)
      elsif (attachment.container.has_attribute?(:course) ||attachment.container.has_attribute?(:course_id) ) && attachment.container.course
        course = attachment.container.course
        candown = User.current.member_of_course?(course) || (attachment.is_public == 1) || attachment.get_status_by_attach(User.current.id) == 2
      elsif attachment.container.is_a?(Course)
        course = attachment.container
        candown= User.current.member_of_course?(course) || (attachment.is_public == 1) || attachment.get_status_by_attach(User.current.id) == 2
      elsif attachment.container.is_a?(OrgSubfield)
        org = attachment.container.organization
        candown = User.current.member_of_org?(org) || ((attachment.is_public == 1 || attachment.get_status_by_attach(User.current.id) == 2) && org.allow_guest_download == true)
      elsif attachment.container.is_a?(OrgDocumentComment)
        org = attachment.container.organization
        candown = org.allow_guest_download || User.current.member_of_org?(org) || (org.is_public && attachment.is_public == 1)
      elsif (attachment.container.has_attribute?(:board) || attachment.container.has_attribute?(:board_id)) && attachment.container.board &&
          attachment.container.board.course
        course = attachment.container.board.course
        candown= User.current.member_of_course?(course) || (course.is_public==1 && attachment.is_public == 1)
      elsif attachment.container.class.to_s=="Organization"
        candown = true
      elsif attachment.container.class.to_s=="HomeworkAttach"
        candown = true
      elsif attachment.container.class.to_s=="StudentWorksScore"
        candown = true
      elsif attachment.container.class.to_s=="StudentWork"
        candown = true
      elsif attachment.container.class.to_s=="Contest"
        candown = true
      elsif attachment.container.class.to_s=="Work"
        candown = true
      elsif attachment.container.class.to_s=="ContestantWork"
        candown = true
      elsif attachment.container.class.to_s=="HomeworkBank"
        candown = true
      elsif attachment.container.class.to_s=="BlogComment" #博客资源允许下载
        candown = true
      elsif attachment.container.class.to_s=="Memo" #论坛资源允许下载
        candown = true
      elsif attachment.container.class.to_s=="Syllabus" #论坛资源允许下载
        candown = true
      elsif attachment.container.class.to_s=="Competition" #竞赛资源允许下载
        candown = true
      elsif attachment.container.class.to_s=="Career" #职业路径资源允许下载
        candown = true
      elsif attachment.container_type == "Inform" #竞赛通知公告允许下载
        candown = true
      elsif attachment.container.class.to_s == "User"
        candown = (attachment.is_public == 1 || attachment.is_public == true || attachment.author_id == User.current.id)
      elsif  attachment.container_type == "Bid" && attachment.container && attachment.container.courses
        course = attachment.container.courses.first
        candown = User.current.member_of_course?(attachment.container.courses.first) || (course.is_public == 1 && attachment.is_public == 1)
      else
        candown = (attachment.is_public == 1 || attachment.is_public == true)
      end
    else
      if attachment.container_type == "MarkDown" || attachment.container_type == "Shixun" || attachment.container_type == "Memo" || attachment.container_type == "Career" || attachment.container_type == "Exercise" || attachment.container_type == "ExerciseBank"
        candown = true
      end
    end
    candown
  end

  def project_type_link(text, value)
    if value == 1
      link_to "<span class='pr_kafa'></span>#{text}".html_safe,"javascript:void(0)" ,:onClick => "show_window();", :class => "pr_join_a",:id => "setting_project_type"
    elsif value == 2
      link_to "<span class='pr_keyan'></span>#{text}".html_safe,"javascript:void(0)" ,:onClick => "show_window();", :class => "pr_join_a",:id => "setting_project_type"
    else
      link_to "<span class='pr_friend'></span>#{text}".html_safe,"javascript:void(0)" ,:onClick => "show_window();", :class => "pr_join_a",:id => "setting_project_type"
    end

  end

  #如果学生作品被打分后修改，应该给老师提示
  def send_message_to_teacher student_work
    if StudentWork === student_work
      student_work_scores = student_work.student_works_scores.where("reviewer_role != 3")
      if student_work_scores.any?
        student_work.update_column('re_commit', 1)
        course = student_work.homework_common.course
        course.teachers.where(:user_id => student_work_scores.map(&:user_id).uniq).each do|mem|
          student_work.tidings << Tiding.new(:user_id => mem.user_id, :trigger_user_id => student_work.user_id, :container_id => student_work.id, :container_type => "StudentWork", :parent_container_id => student_work.homework_common_id, :parent_container_type => "HomeworkCommon",
                                             :belong_container_id => course.id, :belong_container_type => "Course", :viewed => 0, :tiding_type => "HomeworkCommon", :extra => "resubmit")
        end
      end
    end
  end

  private

  def wiki_helper
    helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
    extend helper
    return self
  end

  def link_to_content_update(text, url_params = {}, html_options = {})
    link_to(text, url_params, html_options)
  end

#added by nie
# Display watcher picture
  def show_more_watchers?(obj)
    if User.watched_by(obj.id).count > 6
      return true
    else
      return false
    end
  end

  def show_watcher_profile(obj)
    count = 0
    html = ''
    if User.watched_by(obj.id).count == 0
      html << (content_tag "span", l(:label_no_current_watchers))
    end
    for user in User.watched_by(obj.id)
      html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => "#{user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end

#display bid project
  def show_more_bid_project?(bid)
    if bid.projects.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_bid_project(bid)
    html = ''
    if bid.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      bid.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_bid_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_project_no_follow))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

#display contest project
  def show_more_contest_project?(contest)
    if contest.projects.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_more_contest_softapplication?(contest)
    if contest.softapplications.where('is_public = 1').count > 12
      return true
    else
      return false
    end
  end

  def show_contest_project(bid)
    html = ''
    if contest.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      contest.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_project(contest)
    html = ''
    if contest.projects.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_bid_project), :class => "font_lighter")
    else
      contest.projects.where('is_public = 1').take(12).each do |project|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_softapplication(contest)
    html = ''
    if contest.softapplications.where('is_public = 1').count == 0
      html << (content_tag "p", l(:label_no_contest_softapplication), :class => "font_lighter")
    else
      contest.softapplications.where('is_public = 1').take(12).each do |softapplication|
        html << (link_to image_tag(url_to_avatar(project), :class => "avatar", :title => project.name), project_path(project), :class => "avatar")
      end
    end
    html.html_safe
  end

  def show_contest_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_project_no_follow))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

#display fans picture
  def show_more_fans?(obj)
    if obj.watcher_users.count > 12
      return true
    else
      return false
    end
  end

  def show_fans_picture(obj)
    html = ''
    if obj.watcher_users.count == 0
      html << (content_tag "span", l(:label_no_current_fans))
    else
      obj.watcher_users.take(12).each do |user|
        html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
      end
    end
    html.html_safe
  end

  # added by bai
  def show_more_participate?(obj)
    if obj.join_in_contests.count > 12
      return true
    else
      return false
    end
  end

  def show_participate_picture(obj)
    html = ''
    count = 0
    if obj.join_in_contests.count == 0
      html << (content_tag "span", l(:label_no_current_participate))
    end
    for temp in obj.join_in_contests
      html << (link_to image_tag(url_to_avatar(temp.user), :class => "avatar"), user_path(temp.user), :class => "avatar", :title => "#{temp.user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end

#end

# add by huang
  def show_watcher_list(user)
    html = ''
    count = 0
    for user in User.watched_by(user.id)
      html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => "#{user.name}")
      count = count + 1
      if count >= 12
        break
      end
    end
    html.html_safe
  end
# end

#added by william
  def get_fans_num(user)
    user.watcher_users.count
  end
#end


  def hadcommittedhomework(cur,curb)
    bid = Bid.find_by_id(curb)
    return true if bid.nil?

    case bid.homework_type
      when Bid::HomeworkFile
        attaches = HomeworkAttach.where(bid_id: curb)
        attaches.map(&:user_id).include? cur
      when Bid::HomeworkProject
        attaches = BidingProject.where(user_id: User.current, bid_id: bid)
        attaches.count > 0 # > 0 则有提交记录
      else
        true
    end

  end

  def render_dynamic_nav
    home_link = link_to l(:field_homepage), {:controller => 'welcome', :action => 'index'}
    home_link = "<li class = 'topnav_a fl'>" << home_link <<  "</li>"
    # bootstrap_render_dynamic_nav
    content_tag :ul, (home_link.html_safe+bootstrap_render_dynamic_nav)
  end

  def bootstrap_render_dynamic_nav
    hidden_non_project = Setting.find_by_name("hidden_non_project")
    visiable = !(hidden_non_project && hidden_non_project.value == "0")

    main_course_link = link_to l(:label_course_practice), {:controller => 'welcome', :action => 'index', :host => Setting.host_course}
    main_project_link = link_to l(:label_project_deposit), {:controller => 'welcome', :action => 'index', :host => Setting.host_name}
    main_contest_link = link_to l(:label_contest_innovate), {:controller => 'welcome', :action => 'index', :host => Setting.host_contest}

    # course_all_course_link = link_to l(:label_course_all), {:controller => 'courses', :action => 'index'}
    course_teacher_all_link = link_to l(:label_teacher_all), {:controller => 'users', :action => 'index', :role => 'teacher', :host => Setting.host_course}
    # courses_link = link_to l(:label_course_practice), {:controller => 'courses', :action => 'index'}
    #users_link = link_to l(:label_software_user), {:controller => 'users', :action => 'index', :host => Setting.host_user}
    # contest_link = link_to l(:label_contest_innovate), {:controller => 'contests', :action => 'index'}
    # bids_link = link_to l(:label_requirement_enterprise), {:controller => 'bids', :action => 'index'}
    forum_link = link_to l(:label_forum_all), {:controller => "forums", :action => "index"}
    stores_link = link_to l(:label_stores_index), {:controller => 'stores', :action=> 'index'}
    school_all_school_link = link_to l(:label_school_all), {:controller => 'school', :action => 'index'}
    project_new_link = link_to l(:label_project_new), {:controller => 'projects', :action => 'new', :host => Setting.host_name}
    # project_mine_link = link_to l(:label_my_project), {:controller => 'users', :action => 'user_projects', :host => Setting.host_name}

    #@nav_dispaly_project_label
    nav_list = Array.new
    nav_list.push(school_all_school_link) if @nav_dispaly_course_all_label && @show_course == 1 && visiable
    # nav_list.push(course_all_course_link) if @nav_dispaly_course_all_label && @show_course == 1
    nav_list.push(course_teacher_all_link) if @nav_dispaly_teacher_all_label && @show_course == 1 && visiable

    nav_list.push(main_project_link) if @nav_dispaly_main_project_label
    nav_list.push(main_course_link) if @nav_dispaly_main_course_label && @show_course == 1 && visiable
    nav_list.push(main_contest_link) if @nav_dispaly_main_contest_label && @show_contest == 1 && visiable

    nav_list.push(courses_link) if @nav_dispaly_course_label && @show_course == 1 && visiable
    nav_list.push(project_new_link) if @nav_dispaly_project_label
    # nav_list.push(project_mine_link) if @nav_dispaly_main_project_label
    # nav_list.push(projects_link) if @nav_dispaly_project_label
    #nav_list.push(users_link) if @nav_dispaly_user_label
    # nav_list.push(contest_link) if @nav_dispaly_contest_label  && @show_contest == 1
    nav_list.push(bids_link) if @nav_dispaly_bid_label && visiable
    nav_list.push(forum_link) if @nav_dispaly_forum_label && visiable
    nav_list.push(stores_link) if @nav_dispaly_store_all_label && visiable

    content_li = ''
    nav_list.collect do |nav_item|
      content_li << content_tag(:li, nav_item, :class => 'topnav_a fl')
    end
    content_li.html_safe
  end

  def current_user
    User.current
  end

  # def hadcommittedforcontest(curu)
  # message = JournalsForMessage.find_by_sql("select * from journals_for_messages where jour_type = 'Softapplication' ")
  # message.each do |createmessage|
  # if createmessage.user_id == curu
  # return true
  # end
  # end
  # end

  # 获取用户的认证状态
  def get_authentication_status user
    result = ''
    if user.authentication
      result += '<li class="fl white-icon-ring mr5"><i class="fa fa-user color-light-green" data-tip-down="已实名认证"></i></li>'
    else
      apply_auth = ApplyUserAuthentication.where(:user_id => user.id, :auth_type => 1).last
      if apply_auth && apply_auth.status == 0
        result += '<li class="fl white-icon-ring mr5"><i class="fa fa-user u-color-light-red" data-tip-down="实名认证中"></i></li>'
      else
        result += '<li class="fl white-icon-ring mr5"><i class="fa fa-user u-color-light-grey" data-tip-down="还未实名认证"></i></li>'
      end
    end
    if user.professional_certification
      result += '<li class="fl white-icon-ring mr5"><i class="fa fa-list-alt color-light-green" data-tip-down="已职业认证"></i></li>'
    else
      apply_auth = ApplyUserAuthentication.where(:user_id => user.id, :auth_type => 2).last
      if apply_auth && apply_auth.status == 0
        result += '<li class="fl white-icon-ring mr5"><i class="fa fa-list-alt u-color-light-red" aria-hidden="true" data-tip-down="职业认证中"></i></li>'
      else
        result += '<li class="fl white-icon-ring mr5"><i class="fa fa-list-alt u-color-light-grey" data-tip-down="还未职业认证" aria-hidden="true"></i></li>'
      end
    end
    return result.html_safe
  end

  def footer_logo(ul_class=nil, li_class=nil)
    logos = []
    logos.push(link_to image_tag('/images/footer_logo/nudt.png',:alt=>"nudt"),"http://www.nudt.edu.cn/special.asp?classid=12" )
    logos.push(link_to image_tag('/images/footer_logo/peking_eecs.png', :alt=>"peking_eecs"), "http://www.sei.pku.edu.cn/" )
    logos.push(link_to image_tag('/images/footer_logo/buaa_scse.png', :alt=>"buaa_scse"), "http://scse.buaa.edu.cn/" )
    logos.push(link_to image_tag('/images/footer_logo/iscas.png', :alt=>"iscas"), "http://www.iscas.ac.cn" )
    logos.push(link_to image_tag('/images/footer_logo/inforbus.png', :alt=>"inforbus"), "http://www.inforbus.com" )

    logos.collect! { |logo|
      content_tag(:li, logo.html_safe, :class => li_class.to_s)
    }

    content_tag(:ul, logos.join("").html_safe, :class => ul_class.to_s).html_safe
  end

  def sort_homework_path(bid, sort, direction)
    case self.action_name
      when 'show_courseEx'
        get_not_batch_homework_homework_attach_index_path(bid_id: bid.id, sort: sort, direction: 'asc')
      when 'get_not_batch_homework'
        get_not_batch_homework_homework_attach_index_path(bid_id: bid.id, sort: sort, direction: direction)
      when 'get_batch_homeworks'
        get_batch_homeworks_homework_attach_index_path(bid_id: bid.id, sort: sort, direction: direction)
      when 'get_homeworks'
        get_homeworks_homework_attach_index_path(bid_id: bid.id, sort: sort, direction: direction)
      else
        '#'
    end
  end

  def anonymous_comment_link(bid, course)
    link = case bid.comment_status
             when 0
               confirm_info = "开启匿评后学生将不能对作品进行提交、修改、删除等操作\n"
               confirm_info += anonymous_comment_notice(bid,course)
               confirm_info += '是否确定开启匿评？'
               link_to '启动匿评', start_anonymous_comment_bid_path(bid), id: "#{bid.id}_start_anonymous_comment", remote: true, :confirm => confirm_info, disable_with: '加载中...'
             when 1
               confirm_info = "关闭匿评后所有同学将不能继续进行匿评，且将公开已提交作品列表\n"
               confirm_info += anonymous_comment_notice(bid,course)
               confirm_info += '是否确定关闭匿评？'
               link_to '关闭匿评', stop_anonymous_comment_bid_path(bid), id: "#{bid.id}_stop_anonymous_comment", remote: true, :confirm => confirm_info
             when 2
               '匿评结束'
           end
    content_tag('span', link, id: "#{bid.id}_anonymous_comment")
  end

  def anonymous_comment_notice(bid, course)
    case bid.comment_status
      when 0
        @student_size  ||= searchStudent(course).size
        @homework_size = bid.homeworks.size
        percent = @homework_size.to_f / (@student_size == 0 ? 1 : @student_size)
        confirm_info = "目前#{@student_size}个学生,总共提交了#{@homework_size}份作品,占#{number_to_percentage(percent * 100, precision: 1)}\n"
      when 1
        @homework_evaluations = 0
        bid.homeworks.map { |homework| @homework_evaluations += homework.homework_evaluations.count}
        teachers = "("
        teacher_members = searchTeacherAndAssistant(course)
        teacher_members.each do |member|
          if member == teacher_members.last
            teachers += member.user_id.to_s + ")"
          else
            teachers += member.user_id.to_s + ","
          end
        end
        @has_evaluations = 0
        bid.homeworks.map { |homework| @has_evaluations += homework.rates(:quality).where("seems_rateable_rates.rater_id not in #{teachers}").count}

        percent = @has_evaluations.to_f / (@homework_evaluations == 0 ? 1 : @homework_evaluations)
        confirm_info = "目前总共分配了#{@homework_evaluations}份匿评作品,已评价#{@has_evaluations}份作品,占#{number_to_percentage(percent * 100, precision: 1)}\n"
    end
    confirm_info
  end

  def get_technical_title user
    if user.user_extensions.technical_title == "Professor" || user.user_extensions.technical_title == "教授"
      technical_title = l(:label_technicl_title_professor)
    elsif user.user_extensions.technical_title == "Associate professor" || user.user_extensions.technical_title == "副教授"
      technical_title = l(:label_technicl_title_associate_professor)
    elsif user.user_extensions.technical_title == "Lecturer" || user.user_extensions.technical_title == "讲师"
      technical_title = l(:label_technicl_title_lecturer)
    elsif user.user_extensions.technical_title == "Teaching assistant" || user.user_extensions.technical_title == "助教"
      technical_title = l(:label_technicl_title_teaching_assistant)
    end
    technical_title
  end

  # 用户竞赛总数
  def user_contest_count
    @user.favorite_contests.visible.where("is_delete =?", 0).count
  end

  # 用户项目总数
  def user_project_count
    @my_projects = @user.projects.visible.where("status != 9")
    @my_project_total = @my_projects.count
  end

  # 用户的课程总数
  def user_course_count
    @my_course_count = @user.syllabuses.count

    sy_courses = @user.courses.visible.not_deleted
    syllabus_ids = sy_courses.empty? ? '(-1)' : "(" + sy_courses.map{|course| !course.syllabus_id.nil? && course.syllabus_id}.join(",") + ")"
    syllabus_members = SyllabusMember.where("user_id = #{@user.id}")
    syllabus_member_ids = syllabus_members.empty? ? "(-1)" : "(" + syllabus_members.map{|syl_mem| syl_mem.syllabus_id}.join(',') + ")"
    @join_syllabuses = Syllabus.where("(id in #{syllabus_ids} or id in #{syllabus_member_ids}) and user_id != #{@user.id}")
    @my_joined_course_count = @join_syllabuses.count

    @user_course_total = @my_joined_course_count + @my_course_count
  end

  # 用户发布的作业数
  def user_manage_homework_count
    tea_courses = @user.courses.visible.not_deleted.select{|course| @user.has_teacher_role(course)}
    tea_course_ids = tea_courses.map{|course| course.id}
    @manage_homeworks = HomeworkCommon.where(:course_id => tea_course_ids).count
  end

  # 用户收到的作业数
  def user_receive_homework_count
    stu_courses = @user.courses.visible.not_deleted.select{|course| @user.has_student_role(course)}
    stu_course_ids = stu_courses.empty? ? "(-1)" : "(" + stu_courses.map{|course| course.id}.join(',') + ")"
    @homeworks = HomeworkCommon.where("course_id in #{stu_course_ids} and publish_time <= '#{Time.now}'").count
  end

  # 用户发布的issue数
  def issues_author_is_self_count
    Issue.where(:author_id => @user.id).count
  end

  # 用户收到的issue数
  def issues_assigned_is_self_count
    Issue.where( :assigned_to_id => @user.id ).count
  end

  def get_user_roll user
    technical_title = ""
    case user.user_extensions.identity.to_s
      when "0"
        technical_title =  get_technical_title user
      when "1"
        technical_title =  l(:label_account_identity_student)
      when "2"
        technical_title =  l(:label_account_identity_enterprise)
      when "3"
        technical_title =  l(:label_account_identity_developer)
    end
    technical_title
  end


  def ie8?
    request.env["HTTP_USER_AGENT"] =~ /MSIE 8.0/
  end


  #获取指定资源列表的TAG的集合以及每个TAG的数量，降序排序
  def attachment_tag_list attachments
    tag_list = Hash.new
    attachments.each do |attachment|
      attachment.tag_list.map{|tag| tag_list.has_key?(tag) ? tag_list[tag] = tag_list[tag] + 1 : tag_list[tag] = 1}
    end
    tag_list.sort {|a,b| b[1]<=>a[1]}
  end

  #获取课程资源的TAG云
  def get_course_tag_list course
    all_attachments = course.attachments
    if User.current.admin? || User.current.allowed_to?(:as_teacher, course)
      all_attachments = all_attachments.reorder("created_on desc")
    elsif User.current.member_of_course?(course)
      member = course.members.where(:user_id => User.current.id).first
      if member.try(:course_group_id).to_i == 0
        all_attachments = all_attachments.where("is_publish = 1 and unified_setting = 1")
      else
        not_atta_ids = course.attachment_group_settings.where("course_group_id = #{member.try(:course_group_id)} and publish_time > '#{Time.now}'")
        not_atta_ids = not_atta_ids.blank? ? "(-1)" : "(" + not_atta_ids.map(&:attachment_id).join(",") + ")"
        all_attachments = all_attachments.where("is_publish = 1 and attachments.id not in #{not_atta_ids}")
      end
    else
      all_attachments = all_attachments.where("is_publish = 1 and unified_setting = 1")
    end
    tag_list = attachment_tag_list all_attachments
    tag_list
  end

  # 获取项目资源的Tag云
  def get_project_tag_list project
    all_attachments = project.attachments.select{|attachment| attachment.is_public? ||
        (attachment.container_type == "Project" && User.current.member_of?(project))||
        attachment.author_id == User.current.id
    }
    tag_list = attachment_tag_list all_attachments
    tag_list
  end

  # 获取项目fork成员数
  def project_fork_count
    @forked_projects = Project.where(:forked_from_project_id => @project.id)
    @forked_count = @forked_projects.count
  end

  def get_org_subfield_tag_list org_subfield
    all_attachments = org_subfield.attachments.select{|attachment| attachment.is_public? ||
        (attachment.container_type == "OrgSubfield" && User.current.member_of_org?(org_subfield.organization))||
        attachment.author_id == User.current.id
    }
    tag_list = attachment_tag_list all_attachments
    tag_list
  end

  #获取匿评相关连接代码
  def homework_anonymous_comment (homework, hw_status, user_activity_id = -1)
    if homework.homework_detail_manual.comment_status == 0 || homework.end_time >= Time.now
      link = link_to "启动匿评","javascript:void(0)", :class => "wpostOptionLink", :title => "作业截止日期之前不可以启动匿评"
    elsif homework.student_works.has_committed.count >= 2 && homework.homework_detail_manual#作业份数大于2
      case homework.homework_detail_manual.comment_status
        when 1
          link = link_to '启动匿评', Setting.protocol + "://" + Setting.host_name + "/homework_common/" + homework.id.to_s + "/alert_anonymous_comment?hw_status=" + hw_status.to_s + "&user_activity_id=" + user_activity_id.to_s, id: "#{homework.id}_start_anonymous_comment", remote: true, disable_with: '加载中...',:class => 'wpostOptionLink'
        when 2
          link = link_to '关闭匿评', Setting.protocol + "://" + Setting.host_name + "/homework_common/" + homework.id.to_s + "/alert_anonymous_comment?hw_status=" + hw_status.to_s + "&user_activity_id=" + user_activity_id.to_s, id: "#{homework.id}_stop_anonymous_comment", remote: true,:class => 'wpostOptionLink'
        when 3
          # link = link_to "匿评结束","javascript:void(0)", :class => "postOptionLink", :title => "匿评结束"
      end
    else
      link = link_to "启动匿评","javascript:void(0)", :class => "wpostOptionLink", :title => "学生提交作业数大于等于2时才可以启动匿评"
    end
    link
  end
  #学生根据传入作业确定显示为编辑作品还是新建作品
  def student_new_homework homework
    work = cur_user_works_for_homework homework
    if work.nil?
      link_to "提交作品",  new_student_work_path(:homework => homework.id),:class => 'fr mr10 work_edit'
    else
      if homework.homework_type == 1 && homework.homework_detail_manual && homework.homework_detail_manual.comment_status != 1 #匿评作业，且作业状态不是在开启匿评之前
        link_to "作品已交",  "javascript:void(0);", :class => 'fr mr10 pr_join_span c_white', :title => "开启匿评后不可修改作品"
      elsif homework.homework_type == 2 #编程作业修改作品
        if homework.homework_detail_manual && homework.homework_detail_manual.comment_status != 1
          link_to "作品已交",  "javascript:void(0);", :class => 'fr mr10 pr_join_span c_white', :title => "开启匿评后不可修改作品"
        else
          link_to "修改作品",  new_student_work_path(:homework => homework.id),:class => 'fr mr10 work_edit'
        end
      else
        link_to "修改作品",  edit_student_work_path(work.id),:class => 'fr mr10 work_edit'
      end
    end
  end
  #动态列表中，确定学生是该提交还是进列表
  def student_work_activity_submit_status(opt={})
    default_opt = {class: 'c_blue'}.merge(opt)

    is_teacher = User.current.user_extensions && User.current.user_extensions.identity == 0 && User.current.allowed_to?(:add_course, nil, :global => true)

    homework = default_opt[:homework]
    work = cur_user_works_for_homework homework
    if work.nil? && !is_teacher
      link_to "提交("+homework.student_works.count.to_s+")", new_student_work_path(:homework => homework.id,:host=> Setting.host_course), :class=> default_opt[:class]
    else
      link_to "提交("+homework.student_works.count.to_s+")", student_work_index_path(:homework => homework.id,:host=> Setting.host_course), :class=> default_opt[:class]
    end
  end

  # 试卷动态的按钮
  def user_for_exercise exercise,is_teacher
    count = exercise.exercise_users.where(:commit_status => 1, :user_id => exercise.course.student.map(&:student_id)).count
    if User.current.logged?
      if User.current.member_of_course?(exercise.course)
        if is_teacher #老师显示作品数量
          link_to "作品&nbsp;(#{count})".html_safe, student_exercise_list_exercise_path(exercise), :class => "c_blue homepagePostSubmit"
        else #学生显示提交作品、修改作品等按钮
          work = exercise.exercise_users.where("user_id = ?",User.current).first
          member = exercise.course.members.where(:user_id => User.current.id).first
          setting_time = exercise_group_setting exercise, member.try(:course_group)
          if work
            if work.commit_status > 0
              link_to "查看答题(#{count})", exercise.exercise_status < 3 ? exercise_path(exercise,:user_id => User.current.id) : show_student_result_exercise_path(exercise,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
            else
              if setting_time.publish_time < Time.now && setting_time.end_time > Time.now
                link_to (work.start_at.nil? ? "开始答题(#{count})" : "继续答题(#{count})"), exercise_path(exercise,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
              else
                link_to "查看作品(#{count})".html_safe, student_exercise_list_exercise_path(exercise), :class => "c_blue homepagePostSubmit"
              end
            end
          else
            if setting_time.publish_time < Time.now && setting_time.end_time > Time.now
              link_to "开始答题(#{count})", exercise_path(exercise,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
            else
              link_to "查看作品(#{count})".html_safe, student_exercise_list_exercise_path(exercise), :class => "c_blue homepagePostSubmit"
            end
          end
        end
      else
        link_to "作品&nbsp;(#{count})".html_safe, "javascript:void(0)", :class => "c_blue homepagePostSubmit", :onclick => "notice_sure_box('您不是班级成员，不能答题<br/>请先从老师处获取邀请码后加入班级，再答题')"
      end
    else
      link_to "作品&nbsp;(#{count})".html_safe, "javascript:void(0)", :class => "c_blue homepagePostSubmit", :onclick => "login_notice_box('#{signin_url_without_domain}');"
    end
  end

  # 问卷动态的按钮
  def user_for_poll poll,is_teacher
    count = poll.poll_users.where(:commit_status => 1, :user_id => poll.course.student.map(&:student_id)).count
    if User.current.logged?
      if User.current.member_of_course?(poll.course)
        if is_teacher #老师显示作品数量
          link_to "作品&nbsp;(#{count})".html_safe, student_poll_list_poll_path(poll), :class => "c_blue homepagePostSubmit"
        else #学生显示提交作品、修改作品等按钮
          work = poll.poll_users.where("user_id = ?",User.current).first
          member = poll.course.members.where(:user_id => User.current.id).first
          setting_time = poll_group_setting poll, member.try(:course_group)
          if work
            if work.commit_status > 0
              link_to "查看答题(#{count})", poll_path(poll,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
            elsif setting_time.publish_time < Time.now && setting_time.end_time > Time.now
              link_to (work.start_at.nil? ? "开始答题(#{count})" : "继续答题(#{count})"), poll_path(poll,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
            else
              link_to "查看作品(#{count})".html_safe, student_poll_list_poll_path(poll), :class => "c_blue homepagePostSubmit"
            end
          else
            if setting_time.publish_time < Time.now && setting_time.end_time > Time.now
              link_to "开始答题(#{count})", poll_path(poll,:user_id => User.current.id), :class => "c_blue homepagePostSubmit"
            else
              link_to "查看作品(#{count})".html_safe, student_poll_list_poll_path(poll), :class => "c_blue homepagePostSubmit"
            end
          end
        end
      else
        link_to "作品&nbsp;(#{count})".html_safe, "javascript:void(0)", :class => "c_blue homepagePostSubmit", :onclick => "notice_sure_box('您不是班级成员，不能答题<br/>请先从老师处获取邀请码后加入班级，再答题')"
      end
    else
      link_to "作品&nbsp;(#{count})".html_safe, "javascript:void(0)", :class => "c_blue homepagePostSubmit", :onclick => "login_notice_box('#{signin_url_without_domain}');"
    end
  end

  #根据传入作业确定显示为编辑作品还是新建作品,或者显示作品数量
  def user_for_homework_common homework,work
    if User.current.logged?
      project = cur_user_projects_for_homework homework if homework.homework_type == 3
      member = homework.course.members.where(:user_id => User.current.id).first
      setting_time = homework_group_setting homework, member.try(:course_group_id)
      if homework.homework_type == 4
        if work.nil?
          link_to "开始实战", shixun_path(homework.homework_commons_shixuns.shixun), :class => 'edu-default-btn user_bluebg_btn fr mr20 pl7 pr7',:target => "_blank"
        else
          myshixun = Myshixun.where(:id => work.myshixun_id).first
         # is_modify = ShixunModify.where(:myshixun_id => myshixun.try(:id), :shixun_id => myshixun.shixun.try(:id), :status => 1).first
          link_to "继续实战", shixun_path(myshixun.shixun), :class => "edu-default-btn user_orangebg_btn fr mr20 pl7 pr7", :target => "_blank"
         # if myshixun && is_modify.blank?
          #  link_to "继续实战", myshixun_game_path(myshixun.current_task, :myshixun_id => myshixun), :class => "edu-default-btn user_orangebg_btn fr mr20 pl7 pr7", :target => "_blank"
         # elsif myshixun
         #   link_to "继续实战", 'javascript:void(0);', :onclick => "sure_box_redirect('#{myshixun_reset_myshixun_path(myshixun)}', '实训已经更新啦，系统正在为您重置');", :class => "edu-default-btn user_orangebg_btn fr mr20 pl7 pr7"
         # end
        end
      elsif work.nil? && setting_time.end_time >= Time.now
        if homework.homework_type ==3 && project.nil? && homework.homework_detail_group.base_on_project == 1
          link_to "提交作品", "javascript:void(0)", :class => 'edu-default-btn user_bluebg_btn fr mr20 pl7 pr7',:style=>"cursor:not-allowed",:title => '请先关联项目再提交作品'
        else
          link_to "提交作品", new_student_work_url_without_domain(homework.id),:class => 'edu-default-btn user_bluebg_btn fr mr20 pl7 pr7'
        end
      elsif work.nil? && setting_time.end_time < Time.now
        if homework.allow_late && !homework.course.is_end
          if homework.homework_type ==3 && project.nil? && homework.homework_detail_group.base_on_project == 1
            link_to "补交作品", "javascript:void(0)", :class => 'edu-default-btn user_orangebg_btn fr mr20 pl7 pr7',:style=>"cursor:not-allowed",:title => '请先关联项目再补交作品'
          else
            link_to "补交作品", new_student_work_url_without_domain(homework.id),:class => 'edu-default-btn user_orangebg_btn fr mr20 pl7 pr7'
          end
        end
      elsif work
        work_ids = "(" + homework.student_works.has_committed.map(&:id).join(",") + ")"
        if homework.homework_detail_manual && homework.homework_detail_manual.comment_status == 3 && User.current.student_works_evaluation_distributions.where("student_work_id IN #{work_ids}").count > 0 #匿评作业，且作业状态不是在开启匿评之前
          link_to "作品匿评", student_work_index_path(:homework => homework.id), :class => 'edu-default-btn user_orangebg_btn fr mr20 pl7 pr7', :title => "开启匿评后不可修改作品"
        elsif homework.homework_detail_manual && homework.homework_detail_manual.comment_status > 3
          link_to "查看作品",student_work_path(work), :class => 'edu-default-btn user_greybg_btn fr mr20 pl7 pr7', :title => "匿评已结束"
        elsif setting_time.end_time >= Time.now && work.user_id == User.current.id
          link_to "修改作品", edit_student_work_url_without_domain(work.id),:class => 'edu-default-btn user_orangebg_btn fr mr20 pl7 pr7'
        else
          link_to "查看作品", student_work_path(work), :class => 'edu-default-btn user_greybg_btn fr mr20 pl7 pr7', :title => "作业截止后不可修改作品"
        end
      end
    else
      link_to "作品".html_safe, "javascript:void(0)", :class => "edu-default-btn user_greybg_btn fr mr20 pl7 pr7", :onclick => "login_notice_box('#{signin_url_without_domain}');"
    end
  end

  #根据传入作业确定显示为编辑作品还是新建作品,或者显示作品数量
  def user_for_contest_work homework,is_contestant,work
    count = homework.contestant_works.has_committed.count
    if User.current.logged?
      if User.current.member_of_contest?(homework.contest) || User.current.admin?
        if !is_contestant #老师显示作品数量
          link_to "作品(#{count})", contestant_works_path(:work =>homework.id, :tab => 2), :class => "c_blue"
        else #学生显示提交作品、修改作品等按钮
          work = cur_user_works_for_work homework
          project = cur_user_projects_for_work homework
          if work.nil? && homework.work_status == 1
            if homework.work_type ==3 && project.nil? && homework.work_detail_group.base_on_project
              link_to "提交作品(#{count})","javascript:void(0)", :class => 'c_grey',:style=>"cursor:not-allowed",:title => '请先关联项目再提交作品'
            else
              link_to "提交作品(#{count})",  new_contestant_work_path(:work => homework.id),:class => 'c_blue'
            end
          elsif work.nil? && homework.work_status > 1
            if homework.work_type ==3 && project.nil? && homework.work_detail_group.base_on_project
              link_to "补交作品(#{count})","javascript:void(0)", :class => 'c_grey',:style=>"cursor:not-allowed",:title => '请先关联项目再补交作品'
            else
              link_to "补交作品(#{count})",  new_contestant_work_path(:work => homework.id),:class => 'c_blue'
            end
          else
            if homework.work_status == 1 && work.user_id == User.current.id
              link_to "修改作品(#{count})", edit_contestant_work_path(work.id),:class => 'c_blue'
            else
              link_to "查看作品(#{count})", contestant_works_path(:work =>homework.id, :tab => 2), :class => 'c_blue', :title => "不可修改作品"
            end
          end
        end
      else
        link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "notice_sure_box('您不是参赛者，不能提交作品<br/>请加入竞赛，待审批通过后再提交作品')"
      end
    else
      link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "login_notice_box('#{signin_url_without_domain}');"
    end
  end

  #根据传入作业确定显示为提交作品、补交作品、查看作品等
  def student_for_homework_common homework
    if User.current.allowed_to?(:as_teacher, homework.course)
      link_to "查看作品", student_work_index_url_in_org(homework.id, 2), :class => 'hw_btn_green fr mt5', :title => "查看作品", :target => '_blank'
    else User.current.member_of_course?(homework.course)
    work = cur_user_works_for_homework homework
    project = cur_user_projects_for_homework homework
    if work.nil? && homework.end_time >= Time.now
      if homework.homework_type ==3 && project.nil? && homework.homework_detail_group.base_on_project == 1
        link_to "关联项目", student_work_index_url_in_org(homework.id, 1), :class => 'hw_btn_green fr mt5',:title => '查看分组作业详情', :target => '_blank'
      else
        link_to "提交作品", new_student_work_url_without_domain(homework.id),:class => 'hw_btn_green fr mt5', :target => '_blank'
      end
    elsif work.nil? && homework.end_time < Time.now
      if homework.homework_type ==3 && project.nil? && homework.homework_detail_group.base_on_project == 1
        link_to "关联项目", student_work_index_url_in_org(homework.id, 1), :class => 'hw_btn_green fr mt5',:title => '查看分组作业详情', :target => '_blank'
      else
        link_to "补交作品",  new_student_work_url_without_domain(homework.id),:class => 'btn_orange_big fr mt5', :target => '_blank'
      end
    else
      if homework.homework_detail_manual && homework.homework_detail_manual.comment_status == 2 #匿评作业，且作业状态不是在开启匿评之前
        link_to "作品匿评", student_work_index_url_in_org(homework.id, 2), :class => 'hw_btn_green fr mt5', :title => "开启匿评后不可修改作品", :target => '_blank'
      elsif homework.homework_detail_manual && homework.homework_detail_manual.comment_status == 3
        link_to "查看作品",student_work_index_url_in_org(homework.id, 2), :class => 'hw_btn_green fr mt5', :title => "匿评已结束", :target => '_blank'
      elsif homework.homework_type == 2 && homework.end_time >= Time.now#编程作业不能修改作品
        link_to "修改作品", new_student_work_url_without_domain(homework.id),:class => 'hw_btn_green fr mt5', :target => '_blank'
      elsif homework.end_time >= Time.now && work.user_id == User.current.id
        link_to "修改作品", edit_student_work_url_without_domain(work.id),:class => 'hw_btn_green fr mt5', :target => '_blank'
      else
        link_to "查看作品", student_work_index_url_in_org(homework.id, 2), :class => 'hw_btn_green fr mt5', :title => "作业截止后不可修改作品", :target => '_blank'
      end
    end
    end
  end

  def relate_project homework,is_teacher,is_in_course,user_activity_id,course_activity
    if User.current.member_of_course?(homework.course)
      if is_teacher
        #link_to "已关联(#{homework.student_work_projects.count})",student_work_index_path(:homework => homework.id),:class => "c_blue"
      else
        projects = cur_user_projects_for_homework homework
        works = cur_user_works_for_homework homework
        if works.nil? && projects.nil?
          link_to "关联项目",new_student_work_project_student_work_index_path(:homework => homework.id,:is_in_course=>is_in_course,:user_activity_id=>user_activity_id,:course_activity=>course_activity),remote: true,:class=> 'c_blue', :title=> '请选择分组作业关联的项目'
        elsif works.nil?
          link_to "取消关联",cancel_relate_project_student_work_index_path(:homework => homework.id,:is_in_course=>is_in_course,:user_activity_id=>user_activity_id,:course_activity=>course_activity), :confirm => "您确定要取消关联吗？", remote: true,:class => "c_blue", :title=> '取消关联项目'
        else
          #link_to "已关联(#{homework.student_work_projects.count})",student_work_index_path(:homework => homework.id),:class => "c_blue"
        end
      end
    end
  end

  def student_anonymous_comment homework
    if  homework.homework_detail_manual
      case homework.homework_detail_manual.comment_status
        when 1
          "<span class='fr mr10 pr_join_span '>未开启匿评</span>".html_safe
        when 2
          "<span class='fr mr10 pr_join_span '>正在匿评中</span>".html_safe
        when 3
          "<span class='fr mr10 pr_join_span '>匿评已结束</span>".html_safe
      end
    end
  end

  #获取当前用户在指定作业下提交的作业的集合
  def cur_user_works_for_homework homework
    work = homework.student_works.where("user_id = ? && work_status != 0",User.current).first
    # if homework.homework_type == 3
    #   pro = homework.student_work_projects.where("user_id = #{User.current.id}").first
    #   if pro.nil? || pro.student_work_id == "" || pro.student_work_id.nil?
    #     work = nil
    #   else
    #     work = StudentWork.find pro.student_work_id
    #   end
    # end
    work
  end
  #获取当前用户在指定作业下关联的项目的集合
  def cur_user_projects_for_homework homework
    homework.student_works.where("user_id = ? and project_id != 0",User.current).first
  end

  #获取当前用户在指定题目下提交的作业的集合
  def cur_user_works_for_work homework
    work = homework.contestant_works.where("user_id = ? && work_status != 0",User.current).first
    if homework.work_type == 3
      pro = homework.contestant_work_projects.where("user_id = #{User.current.id}").first
      if pro.nil? || pro.contestant_work_id == "" || pro.contestant_work_id.nil?
        work = nil
      else
        work = ContestantWork.find pro.contestant_work_id
      end
    end
    work
  end
  #获取当前用户在指定题目下关联的项目的集合
  def cur_user_projects_for_work work
    work.contestant_work_projects.where("user_id = ?",User.current).first
  end

  #获取当前作业的提交截止时间/互评截止时间
  def cur_homework_end_time homework
    str = ""
    if homework.anonymous_comment == 0 && homework.end_time && homework.end_time < Time.now && homework.homework_detail_manual
      str = "互评截止：#{format_date homework.homework_detail_manual.evaluation_end}"
    else
      str = "提交截止：#{homework.end_time ? (format_date homework.end_time) : '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'}"
    end
    str
  end

  def file_preview_tag(file, html_options={})
    if %w(pdf pptx doc docx xls xlsx).any?{|x| file.filename.downcase.end_with?(x)}
      link_to '预览', download_named_attachment_path(file.id, file.filename, preview: true),html_options
    end
  end

  def file_preview_eye(file, html_options={})
    if %w(pdf pptx doc docx xls xlsx).any?{|x| file.filename.downcase.end_with?(x)}
      link_to '', User.current.logged? ? download_named_attachment_path(file.id, file.filename, preview: true) : signin_url_without_domain, html_options
    end
  end

  #将文本内的/n转换为<br>
  def text_format text
    text.gsub("&","&amp;").gsub("<","&lt;").gsub(">","&gt;").gsub("\n","<br/>").html_safe
  end

  #评分规则显示
  def scoring_rules late_penalty,homework_id,is_teacher,absence_penalty=nil
    if absence_penalty
      if late_penalty.to_i == 0 && absence_penalty.to_i == 0
        notice = "尚未设置评分规则"
        if is_teacher
          notice += "，请&nbsp" + link_to("设置",edit_homework_common_path(homework_id),:class => "c_green")
        end
      elsif late_penalty.to_i != 0 && absence_penalty.to_i == 0
        notice = "迟交扣#{late_penalty}分，缺评扣分未设置"
      elsif late_penalty.to_i == 0 && absence_penalty.to_i != 0
        notice = "迟交扣分未设置，缺评一个作品扣#{absence_penalty}分"
      elsif late_penalty.to_i != 0 && absence_penalty.to_i != 0
        notice = "迟交扣#{late_penalty}分，缺评一个作品扣#{absence_penalty}分"
      end
    else
      if late_penalty.to_i == 0
        notice = "尚未设置评分规则"
        if is_teacher
          notice += "，请&nbsp" + link_to("设置",edit_homework_common_path(homework_id),:class => "c_green")
        end
      else
        notice = "迟交扣#{late_penalty}分"
      end
    end
    notice.html_safe
  end

  #老师C语言的标准代码
  def c_stantard_code_teacher
    "// 老师您好！这是一个C语言的样例程序
// 程序功能：输入两个整数，输出两者之和
// 测试集合：老师可以给出多组测试集，例如：
//                 输入1和2，输出3
//                 输入3和4，输出7
//                 ... ...
//                 系统将根据您给出的测试集对学生代码进行自动评分

// 特别提醒：程序采用命令行传参方式，输入通过argv传入
//                 否则您的作业标准代码将不能通过测试

#include <stdio.h> //引用必须头文件
int main(int argc, char** argv) {
    int a = atoi(argv[1]);  //将第一个输入转成整型
    int b = atoi(argv[2]);  //将第二个输入转换为整型

    printf(\"%d\",a+b);      //输出a+b
    return 0;
}".html_safe
  end

  #老师C++语言的标准代码
  def c_stantard_code_teacher_
    "// 老师您好！这是一个C++语言的样例程序
// 程序功能：输入两个整数，输出两者之和
// 测试集合：老师可以给出多组测试集，例如：
//                 输入1和2，输出3
//                 输入3和4，输出7
//                 ... ...
//                 系统将根据您给出的测试集对学生代码进行自动评分

// 特别提醒：程序采用命令行传参方式，输入通过argv传入
//                 否则您的作业标准代码将不能通过测试

#include <iostream> //引用必须头文件
#include <cstdlib>
using namespace std;
int main(int argc, char** argv){
  int a = atoi(argv[1]); //将第一个输入转成整型
  int b = atoi(argv[2]); //将第二个输入转换为整型
  cout<<a+b;   //输出a+b
  return 0;
}".html_safe
  end

  #学生C语言的标准代码
  def c_stantard_code_student
    "// 同学好！这是一个C语言的样例程序
// 程序功能：输入两个整数，输出两者之和
// 测试集合：老师可以给出多组测试集，例如：
//                 输入1和2，输出3
//                 输入3和4，输出7
//                 ... ...
//                 系统将根据您给出的测试集对学生代码进行自动评分

// 特别提醒：程序采用命令行传参方式，输入通过argv传入
//                 否则您的作业标准代码将不能通过测试

#include <stdio.h> //引用必须头文件
int main(int argc, char** argv) {
    int a = atoi(argv[1]);  //将第一个输入转成整型
    int b = atoi(argv[2]);  //将第二个输入转换为整型

    printf(\"%d\",a+b);      //输出a+b
    return 0;
}".html_safe
  end

  #学生C++语言的标准代码
  def c_stantard_code_student_
    "// 同学好！这是一个C++语言的样例程序
// 程序功能：输入两个整数，输出两者之和
// 测试集合：老师可以给出多组测试集，例如：
//                 输入1和2，输出3
//                 输入3和4，输出7
//                 ... ...
//                 系统将根据您给出的测试集对学生代码进行自动评分

// 特别提醒：程序采用命令行传参方式，输入通过argv传入
//                 否则您的作业标准代码将不能通过测试

#include <iostream> //引用必须头文件
#include <cstdlib>
using namespace std;
int main(int argc, char** argv){
  int a = atoi(argv[1]); //将第一个输入转成整型
  int b = atoi(argv[2]); //将第二个输入转换为整型
  cout<<a+b;   //输出a+b
  return 0;
}".html_safe
  end

  def compile_command
    "compile(){
	# 编译命令
        compileCommand=\"COMPILECOMMAND\"
	# 取当前关卡的编译文件
        challengeProgramName=${challengeProgramNames[$1 - 1]}
	# 获取编译结果（此处编译无输出则说明编译通过，否则输出编译错误信息，请按实训实际情况调整）
        compileResult=$($compileCommand $challengeProgramName 2>&1 | base64)
        if [ -z \"$compileResult\" ]; then
                compileResult=$(echo -n \"compile successfully\" | base64)
        fi

}
compile $1"
  end

  def execute_command
    "execute(){
	#执行命令
        executeCommand=\"EXECUTECOMMAND\"
	#执行文件名
        sourceClassName=${sourceClassNames[$1 - 1]}
        challengeStage=$1

        output=''
        i=0
        while [[ i -lt ${#ins[*]} ]]; do
            #执行，并拼接执行结果
            result=$(echo \"${ins[$i]}\" | base64 -d | $executeCommand $sourceClassName 2>&1 | base64)
            #拼接输出结果
            output=$output\\\"$result\\\",
            let i++
        done
        output=\"[${output%?}]\"
}

execute $1
"
  end

  def challenge_file_path
    "#用户打开的文件名，之所以传过来这个，是因为可以从这个里面提取出来执行文件名
challengeProgramNames=(CHALLENGEPROGRAMNAMES)"
  end


  def import_ke(default_opt={})
    opt = {enable_at: false, prettify: false, init_activity: false}.merge default_opt
    ss  = ''

    unless Setting.at_enabled?
      opt[:enable_at] = false
    end

    ss += javascript_include_tag("/assets/kindeditor/kindeditor",'/assets/kindeditor/pasteimg')
    if opt[:enable_at]
      ss += javascript_include_tag('/assets/kindeditor/at/jquery.caret.min.js', '/assets/kindeditor/at/jquery.atwho.js', '/assets/kindeditor/at/config.js')
      ss += stylesheet_link_tag("/assets/kindeditor/at/jquery.atwho.css")
    end

    if opt[:prettify]
      ss += javascript_include_tag 'prettify'
      ss += stylesheet_link_tag 'prettify'
    end

    if opt[:init_activity]
      ss += javascript_include_tag "create_kindeditor"
    end

    ss.html_safe
  end

  #竞赛动态的更新
  def update_contest_activity type, id
    contest_activity = ContestActivity.where("contest_act_type=? and contest_act_id =?", type.to_s, id).first
    if contest_activity
      contest_activity.updated_at = Time.now
      contest_activity.save
    end
  end
  #课程动态的更新
  def update_course_activity type, id
    course_activity = CourseActivity.where("course_act_type=? and course_act_id =?", type.to_s, id).first
    if course_activity
      course_activity.updated_at = Time.now
      course_activity.save
    end
  end
  #首页动态更新
  def update_user_activity type, id
=begin
    user_activity = UserActivity.where("act_type=? and act_id =?", type.to_s, id).first
    if user_activity
      user_activity.updated_at = Time.now
      user_activity.save
    end
=end
  end
  #项目动态更新
  def update_forge_activity type, id
    forge_activity = ForgeActivity.where("forge_act_type=? and forge_act_id=?", type.to_s, id).first
    if forge_activity
      forge_activity.updated_at = Time.now
      forge_activity.save
    end
  end
  #组织动态更新
  def update_org_activity type , id
=begin
    org_activity = OrgActivity.where("org_act_type=? and org_act_id =?", type.to_s, id).first
    if org_activity
      org_activity.updated_at = Time.now
      org_activity.save
    end
=end
  end
  #个人动态更新
  def update_principal_activity type, id
=begin
    principal_activity = PrincipalActivity.where("principal_act_type=? and principal_act_id =?", type.to_s, id).first
    if principal_activity
      principal_activity.updated_at = Time.now
      principal_activity.save
    end
=end
  end

  #项目按更新时间排序
  def project_sort_update projects
    unless projects.empty?
      project_ids = '('+projects.map{|pro|pro.project_id}.join(',')+')'
      sort_projects = ForgeActivity.find_by_sql("SELECT MAX(updated_at) AS updated_at,user_id, project_id FROM forge_activities WHERE project_id IN #{project_ids} GROUP BY project_id ORDER BY MAX(updated_at) DESC")
      #sort_projects = sort_projects.sort_by{|sp| (!sp.project.project_score.nil? && !sp.project.project_score.commit_time.nil?) ? '' : sp.project.project_score.commit_time}
      return sort_projects
    end
  end

  def project_sort_first projects
    unless projects.empty?
      project_ids = '('+projects.map{|pro|pro.project_id}.join(',')+')'
      sort_projects = ForgeActivity.find_by_sql("SELECT updated_at,user_id, project_id FROM forge_activities WHERE project_id IN #{project_ids} ORDER BY updated_at DESC limit 1")
      return sort_projects
    end
  end
end

def user_url_in_org(user_id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + user_id.to_s
end

def project_issues_url_in_org(project_id)
  Setting.protocol + "://" + Setting.host_name + "/projects/" + project_id.to_s + "/issues"
end

def issue_url_in_org(id)
  Setting.protocol + "://" + Setting.host_name + "/issues/" + id.to_s
end

def project_boards_url_in_org(id)
  Setting.protocol + "://" + Setting.host_name + "/projects/" + id.to_s + "/boards"
end

def board_message_url_in_org(board_id, message_id)
  Setting.protocol + "://" + Setting.host_name + "/boards/" + board_id.to_s + "/topics/" + message_id.to_s
end

def project_url_in_org(id)
  Setting.protocol + "://" + Setting.host_name + "/projects/" + id.to_s
end

def homework_common_index_url_in_org(course_id)
  Setting.protocol + "://" + Setting.host_name + "/homework_common?course=" + course_id.to_s
end

def student_work_index_url_in_org(homework_id, tab = 1, is_focus = '', show_work_id = '')
  if is_focus != ''
    Setting.protocol + "://" + Setting.host_name + "/student_work?homework=" + homework_id.to_s + "&tab=" + tab.to_s + "&is_focus=" + is_focus.to_s
  elsif show_work_id != ''
    Setting.protocol + "://" + Setting.host_name + "/student_work?homework=" + homework_id.to_s + "&tab=" + tab.to_s + "&show_work_id=" + show_work_id.to_s
  else
    Setting.protocol + "://" + Setting.host_name + "/student_work?homework=" + homework_id.to_s + "&tab=" + tab.to_s
  end
end


def contestant_work_index_url_in_org(work_id, tab = 1, is_focus = '', show_work_id = '')
  if is_focus != ''
    Setting.protocol + "://" + Setting.host_name + "/contestant_work?work=" + work_id.to_s + "&tab=" + tab.to_s + "&is_focus=" + is_focus.to_s
  elsif show_work_id != ''
    Setting.protocol + "://" + Setting.host_name + "/contestant_work?work=" + work_id.to_s + "&tab=" + tab.to_s + "&show_work_id=" + show_work_id.to_s
  else
    Setting.protocol + "://" + Setting.host_name + "/contestant_work?work=" + work_id.to_s + "&tab=" + tab.to_s
  end
end

def course_url_in_org(course_id)
  Setting.protocol + "://" + Setting.host_name + "/courses/" + course_id.to_s
end

def user_watchlist_url_in_org(id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + id.to_s + "/user_watchlist"
end

def user_fanslist_url_in_org(id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + id.to_s + "/user_fanslist"
end

def user_blogs_url_in_org(user_id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + user_id.to_s + "/blogs"
end

def feedback_url_in_org(user_id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + user_id.to_s + "/user_newfeedback"
end

def user_activities_url_in_org(user_id)
  Setting.protocol + "://" + Setting.host_name + "/users/" + user_id.to_s + "/user_activities"
end

def course_news_index_url_in_org(course_id)
  Setting.protocol + "://" + Setting.host_name + "/courses/" + course_id.to_s + "/news"
end

def news_url_in_org(news_id)
  Setting.protocol + "://" + Setting.host_name + "/news/" + news_id.to_s
end

def course_boards_url_in_org(course_id)
  Setting.protocol + "://" + Setting.host_name + "/courses/" + course_id.to_s + "/boards"
end

def logout_url_without_domain
  Setting.protocol + "://" + Setting.host_name + "/logout"
end

def signin_url_without_domain
  Setting.protocol + "://" + Setting.host_name + "/login?login=true"
end

def register_url_without_domain
  Setting.protocol + "://" + Setting.host_name + "/login?login=false"
end

def new_student_work_url_without_domain(homework_id)
  Setting.protocol + "://" + Setting.host_name + "/student_work/new?homework=" + homework_id.to_s
end

def edit_student_work_url_without_domain(homework_id)
  Setting.protocol + "://" + Setting.host_name + "/student_work/" + homework_id.to_s + "/edit"
end

def download_named_attachment_url_without_domain(id, filename, option={})
  attachment_id = (Attachment === id ? id.id : id)
  Setting.protocol + "://" + Setting.host_name + "/attachments/download/" + attachment_id.to_s + "/" + filename
end

def named_attachment_url_without_domain(id, filename, option={})
  attachment_id = (Attachment === id ? id.id : id)
  Setting.protocol + "://" + Setting.host_name + "/attachments/" + attachment_id.to_s + "/" + filename
end

#判断是否为默认的组织栏目
def is_default_field? field
  (field.name == 'activity' || field.name == 'course' || field.name == 'project' ) && field.field_type == 'default'
end

def host_with_protocol
  return Setting.protocol + "://" + Setting.host_name
end

def secdomain_with_protocol secdomain
  return Setting.protocol + "://" + secdomain + ".trustie.net"
end

#根据回复类型获取回复
def get_reply_by_type type, reply_id
  reply = nil
  case type
    when 'HomeworkCommon', 'Work', 'GraduationTopic', 'GraduationTask'
      reply = JournalsForMessage.find reply_id
    when 'JournalsForMessage'
      reply = JournalsForMessage.find reply_id
    when 'Message'
      reply = Message.find reply_id
    when 'BlogComment'
      reply = BlogComment.find reply_id
    when 'OrgDocumentComment'
      reply = OrgDocumentComment.find reply_id
    when 'News','Comment'
      reply = Comment.find reply_id
    when 'Issue', 'TrainingTask'
      reply = Journal.find reply_id
    when 'Journal'
      reply = Journal.find reply_id
    when 'Syllabus'
      reply = JournalsForMessage.find reply_id
    when 'Memo'
      reply = Memo.find reply_id
    when 'Challenge'
      reply = Discuss.find reply_id
  end
  reply
end

#获取不包含子节点的回复(前三个)
def get_no_children_comments comments
  result = {}
  no_children_comments = []
  count = 0
  three_more = false
  comments.each do |comment|
    if comment.children.blank?
      count = count + 1
      if count > 3
        three_more = true
      end
      break if count > 3
      no_children_comments << comment
    end
  end
  result[:three_more] = three_more
  result[:no_children_comments] = no_children_comments
  result
end

#获取不包含子节点的回复(所有)
def get_no_children_comments_all comments
  no_children_comments = []
  comments.each do |comment|
    if comment.children.blank?
      no_children_comments << comment
    end
  end
  no_children_comments
end

#获取回复的所有父节点
def get_reply_parents parents_rely, comment
  unless comment.parent.nil?
    parents_rely << comment.parent
    get_reply_parents parents_rely, comment.parent
  end
  parents_rely
end

#获取回复的所有父节点(不包括根节点)
def get_reply_parents_no_root parents_rely, comment
  if !comment.parent.nil? && !comment.parent.parent.nil?
    parents_rely << comment.parent
    get_reply_parents_no_root parents_rely, comment.parent
  end
  parents_rely
end

def get_all_children_ex result, jour
  if jour.kind_of? Message
    jour.children.includes(:author, :praise_tread_cache).each do |jour_child|
      result << jour_child
      get_all_children_ex result, jour_child
    end
  elsif (jour.kind_of? JournalsForMessage) || (jour.kind_of? BlogComment) || (jour.kind_of? OrgDocumentComment)
    jour.children.each do |jour_child|
      result << jour_child
      get_all_children_ex result, jour_child
    end
  end
  result
end

#获取所有子节点
def get_all_children result, jour
  if jour.kind_of? Message
    jour.children.includes(:author, :praise_tread_cache).each do |jour_child|
      result << jour_child
      get_all_children_ex result, jour_child
    end
  elsif (jour.kind_of? JournalsForMessage) || (jour.kind_of? BlogComment) || (jour.kind_of? OrgDocumentComment)
    jour.children.each do |jour_child|
      result << jour_child
      get_all_children_ex result, jour_child
    end
  end
  if jour.respond_to?(:created_on)
    result.sort! { |a,b| b.created_on <=> a.created_on }
  elsif jour.respond_to?(:created_at)
    result.sort! { |a,b| b.created_at <=> a.created_at }
  end
  result
end

#获取该节点所在的帖子
def get_root_parent comment
  while comment.parent
    comment = comment.parent
  end
  comment
end



#将有置顶属性的提到数组前面
def sort_by_sticky topics
  tmpTopics = []
  tmpIndex = 0
  topics.each do |topic|
    if topic.sticky == 1
      tmpTopics[tmpIndex] = topic
      tmpIndex = tmpIndex + 1
    end
  end

  topics.each do |topic|
    if topic.sticky == 0
      tmpTopics[tmpIndex] = topic
      tmpIndex = tmpIndex + 1
    end
  end
  return tmpTopics
end

#按人气排序的时候 相同的人气必须按某种时间顺序排序  有置顶属性
def sortby_time_countcommon_hassticky topics,sortstr
  tmpTopics = []
  tmpTopics = topics
  tStart = -1
  tEnd = -1

  tmpTopics_1 = []
  tmpIndex = 0

  tmpTopics.each_with_index do |topic,index|
    if topic.sticky == 0
      if  tStart == -1
        if (index != tmpTopics.count-1) && (topic[:infocount] == tmpTopics[index+1][:infocount])
          tStart = index
        end
      else
        if ((topic[:infocount] == tmpTopics[index-1][:infocount]) && ((index != tmpTopics.count-1) && (topic[:infocount] == tmpTopics[index+1][:infocount])))
          tEnd = index
        else
          if (topic[:infocount] == tmpTopics[index-1][:infocount])
            tEnd = index
          end
          if tEnd > tStart
            for i in tStart..tEnd
              tmpTopics_1[tmpIndex] = tmpTopics[i]
              tmpIndex = tmpIndex + 1
            end

            if sortstr == "created_at"
              tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:created_at].to_i  <=> x[:created_at].to_i }
            elsif sortstr == "created_on"
              tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:created_on].to_i  <=> x[:created_on].to_i }
            elsif sortstr == "updated_at"
              tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:updated_at].to_i  <=> x[:updated_at].to_i }
            elsif sortstr == "updated_on"
              tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:updated_on].to_i  <=> x[:updated_on].to_i }
            end

            tmpIndex = 0
            for i in tStart..tEnd
              tmpTopics[i] = tmpTopics_1[tmpIndex]
              tmpIndex = tmpIndex + 1
            end
          end
          tStart = -1
          tEnd = -1
          tmpTopics_1 = []
          tmpIndex = 0
        end
      end
    end
  end
  return tmpTopics
end

#按人气排序的时候 相同的人气必须按某种时间顺序排序  无置顶属性
def sortby_time_countcommon_nosticky topics,sortstr
  tmpTopics = []
  tmpTopics = topics
  tStart = -1
  tEnd = -1

  tmpTopics_1 = []
  tmpIndex = 0

  tmpTopics.each_with_index do |topic,index|
    if  tStart == -1
      if (index != tmpTopics.count-1) && (topic[:infocount] == tmpTopics[index+1][:infocount])
        tStart = index
      end
    else
      if ((topic[:infocount] == tmpTopics[index-1][:infocount]) && ((index != tmpTopics.count-1) && (topic[:infocount] == tmpTopics[index+1][:infocount])))
        tEnd = index
      else
        if (topic[:infocount] == tmpTopics[index-1][:infocount])
          tEnd = index
        end
        if tEnd > tStart
          for i in tStart..tEnd
            tmpTopics_1[tmpIndex] = tmpTopics[i]
            tmpIndex = tmpIndex + 1
          end

          if sortstr == "created_at"
            tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:created_at].to_i  <=> x[:created_at].to_i }
          elsif sortstr == "created_on"
            tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:created_on].to_i  <=> x[:created_on].to_i }
          elsif sortstr == "updated_at"
            tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:updated_at].to_i  <=> x[:updated_at].to_i }
          elsif sortstr == "updated_on"
            tmpTopics_1 = tmpTopics_1.sort{|x,y| y[:updated_on].to_i  <=> x[:updated_on].to_i }
          end

          tmpIndex = 0
          for i in tStart..tEnd
            tmpTopics[i] = tmpTopics_1[tmpIndex]
            tmpIndex = tmpIndex + 1
          end
        end
        tStart = -1
        tEnd = -1
        tmpTopics_1 = []
        tmpIndex = 0
      end
    end
  end
  return tmpTopics
end

def strip_html(text,len=0,endss="...")
  ss = ""
  if !text.nil? && text.length>0
    ss=text.gsub(/<\/?.*?>/, '').strip
    ss = ss.gsub(/&nbsp;*/, ' ')

    if len > 0 && ss.length > len
      ss = ss[0, len] + endss
    elsif len > 0 && ss.length <= len
      ss = ss
      #ss = truncate(ss, :length => len)
    end
  end
  return ss
end

def message_content content
  content = (strip_html content).strip
  content = content.gsub(/\s+/, " ")
  if content.gsub(" ", "") == ""
    content = "[非文本消息]"
  end
  content
end

def get_work_index(hw,is_teacher)
  if is_teacher
    works = hw.contest.works.order("created_at asc")
  else
    works = hw.contest.works.where("publish_time <= '#{Date.today}'").order("created_at asc")
  end
  hw_ids = works.map{|hw| hw.id} if !works.empty?
  index = hw_ids.index(hw.id).to_i
  return index
end

def get_poll_index(poll, course, is_teacher)
  if is_teacher
    polls = course.polls.order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      polls = course.polls.where("publish_time <= '#{Time.now}' and unified_setting = 1").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    else
      not_poll_ids = course.poll_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_poll_ids = not_poll_ids.blank? ? "(-1)" : "(" + not_poll_ids.map(&:poll_id).join(",") + ")"
      polls = course.polls.where("publish_time <= '#{Time.now}' and id not in #{not_poll_ids}").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    end
  else
    polls = course.polls.where("publish_time <= '#{Time.now}'").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  end
  poll_ids = polls.map{|poll| poll.id} if !polls.blank?
  index = poll_ids.length - 1 - poll_ids.index(poll.id).to_i
  return index
end

def get_ex_index(exercise, course, is_teacher)
  if is_teacher
    exercises = course.exercises.order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      exercises = course.exercises.where("publish_time <= '#{Time.now}' and unified_setting = 1").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    else
      not_exercise_ids = course.exercise_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_exercise_ids = not_exercise_ids.blank? ? "(-1)" : "(" + not_exercise_ids.map(&:exercise_id).join(",") + ")"
      exercises = course.exercises.where("publish_time <= '#{Time.now}' and id not in #{not_exercise_ids}").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    end
  else
    exercises = course.exercises.where("publish_time <= '#{Time.now}'").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  end
  ex_ids = exercises.map{|ex| ex.id} if !exercises.blank?
  index = ex_ids.length - 1 - ex_ids.index(exercise.id).to_i
  return index
end

def get_task_index task, is_teacher
  if is_teacher
    tasks = task.course.graduation_tasks.order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  else
    tasks = task.course.graduation_tasks.where("publish_time <= '#{Time.now}'").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
  end
  task_ids = tasks.pluck(:id)
  index = task_ids.length - task_ids.index(task.id).to_i
  return index
end

def get_hw_index(hw,is_teacher,type=0)
  homework_commons = hw.course.homework_commons
  course = hw.course
  category_str = hw.course_homework_category_id.nil? ? "is null" : "= #{hw.course_homework_category_id}"
  if is_teacher
    if type != 0
      homeworks = homework_commons.where("homework_commons.homework_type = #{type} and course_homework_category_id #{category_str}").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    else
      homeworks = homework_commons.where("course_homework_category_id #{category_str}").order("publish_time desc")
    end
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      if type != 0
        homeworks = homework_commons.where("course_homework_category_id #{category_str} and homework_commons.homework_type = #{type} and publish_time <= '#{Time.now}' and unified_setting = 1").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
      else
        homeworks = homework_commons.where("course_homework_category_id #{category_str} and publish_time <= '#{Time.now}' and unified_setting = 1").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
      end
    else
      not_homework_ids = course.homework_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_homework_ids = not_homework_ids.blank? ? "(-1)" : "(" + not_homework_ids.map(&:homework_common_id).join(",") + ")"
      if type != 0
        homeworks = homework_commons.where("course_homework_category_id #{category_str} and homework_commons.homework_type = #{type} and publish_time <= '#{Time.now}' and id not in #{not_homework_ids}").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
      else
        homeworks = homework_commons.where("course_homework_category_id #{category_str} and publish_time <= '#{Time.now}' and id not in #{not_homework_ids}").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
      end
    end
  else
    if type != 0
      homeworks = homework_commons.where("course_homework_category_id #{category_str} and homework_commons.homework_type = #{type} and publish_time <= '#{Time.now}'").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    else
      homeworks = homework_commons.where("course_homework_category_id #{category_str} and publish_time <= '#{Time.now}'").order("IF(ISNULL(publish_time),0,1),publish_time DESC, created_at DESC")
    end
  end
  hw_ids = homeworks.map{|hw| hw.id} if !homeworks.blank?
  index = hw_ids.blank? ? 1 : (hw_ids.length - 1 - hw_ids.index(hw.id).to_i)
  return index
end

def get_hw_status homework_common
  str = ""
  if homework_common.homework_detail_manual
    if homework_common.homework_detail_manual.comment_status == 0 && homework_common.publish_time.nil?
      str += '<span class="grey_homework_btn_cir ml5">未发布</span>'
    elsif homework_common.homework_detail_manual.comment_status == 0
      str += '<span class="grey_homework_btn_cir ml5">未发布</span>'
    elsif homework_common.homework_detail_manual.comment_status == 1
      if homework_common.anonymous_comment == 0
        str += '<span class="grey_homework_btn_cir ml5">未开启匿评</span>'
      else
        str += '<span class="grey_homework_btn_cir ml5">匿评已禁用</span>'
      end
      if homework_common.end_time >= Time.now
        str += '<span class="green_homework_btn_cir ml5">作品提交中</span>'
      elsif homework_common.end_time < Time.now && homework_common.anonymous_comment == 1 && User.current.allowed_to?(:as_teacher, homework_common.course)
        str += '<span class="green_homework_btn_cir ml5" title="目前教师和教辅正在评阅">教师评阅中</span>'
      else
        str += '<span class="red_homework_btn_cir ml5">作品补交中</span>'
      end
    elsif homework_common.homework_detail_manual.comment_status == 2
      if homework_common.anonymous_comment == 0
        str += '<span class="green_homework_btn_cir ml5">匿评中</span>'
      else
        str += '<span class="grey_homework_btn_cir ml5">匿评已禁用</span>'
      end
      str += '<span class="green_homework_btn_cir ml5" title="目前教师和教辅正在评阅">教师评阅中</span>'
    elsif homework_common.homework_detail_manual.comment_status == 3
      if homework_common.anonymous_comment == 0
        str += '<span class="grey_homework_btn_cir ml5">匿评已结束</span>'
      else
        str += '<span class="grey_homework_btn_cir ml5">匿评已禁用</span>'
      end
      str += '<span class="green_homework_btn_cir ml5" title="目前教师和教辅正在评阅">教师评阅中</span>'
    end
  end
  str
end

def get_cw_status contest_work
  str = ""
  if contest_work.work_status == 0 && contest_work.publish_time.nil?
    str += '<span class="grey_homework_btn_cir ml5">挂起</span>'
  elsif contest_work.work_status == 0
    str += '<span class="grey_homework_btn_cir ml5">未发布</span>'
  elsif contest_work.work_status == 1
    if Time.parse(contest_work.end_time.to_s).strftime("%Y-%m-%d") >= Time.now.strftime("%Y-%m-%d")
      str += '<span class="green_homework_btn_cir ml5">作品提交中</span>'
    else
      str += '<span class="red_homework_btn_cir ml5">作品补交中</span>'
    end
  elsif contest_work.work_status == 2
    str += '<span class="red_homework_btn_cir ml5">提交已截止</span>'
  elsif contest_work.work_status == 3
    str += '<span class="green_homework_btn_cir ml5">在线评审中</span>'
  elsif contest_work.work_status == 4
    str += '<span class="red_homework_btn_cir ml5">评审已截止</span>'
  end
  str
end


def get_group_member_names user_ids
  result = ""
  user_ids.each do |user_id|
    user = User.where(:id => user_id).first
    unless user.nil?
      if result != ""
        result += "、#{user.show_name}"
      else
        result += user.show_name
      end
    end
  end
  result
end

def get_contest_group_member_names work
  result = ""
  unless work.nil?
    work.contestant_work_projects.each do |member|
      user = User.where(:id => member.user_id).first
      unless user.nil?
        if result != ""
          result += "、#{user.show_name}"
        else
          result += user.show_name
        end
      end
    end
  end
  result
end

def course_syllabus_option syllabus_id = nil
  syllabus_members = SyllabusMember.where("user_id = #{User.current.id}")
  syllabus_ids = syllabus_members.map{|mem| mem.syllabus_id}
  if syllabus_id && !syllabus_ids.include?(syllabus_id)
    syllabus_ids << syllabus_id
  end
  syllabus_ids = syllabus_ids.empty? ? "(-1)" : "(" + syllabus_ids.join(',') + ")"
  syllabuses = Syllabus.where("id in #{syllabus_ids}")
  type = []
  option1 = []
  option1 << "请选择课程"
  option1 << 0
  type << option1
  unless syllabuses.empty?
    syllabuses.each do |syllabus|
      option = []
      option << syllabus.title
      option << syllabus.id
      type << option
    end
  end
  type
end

def create_polls_tiding poll, members
  tid_str = ""
  if poll.tidings.where(:parent_container_type => "PollPublish", :user_id => poll.course.teachers.map(&:user_id)).count == 0
    poll.course.teachers.find_each do |member|
      tid_str += "," if tid_str != ""
      tid_str += "(#{member.user_id}, #{poll.user_id}, #{poll.id}, 'Poll', #{poll.id}, 'PollPublish', #{poll.course.id}, 'Course', 0, 'Poll', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
    end
  end

  members.find_each do |student|
    tid_str += "," if tid_str != ""
    tid_str += "(#{student.user_id}, #{poll.user_id}, #{poll.id}, 'Poll', #{poll.id}, 'PollPublish', #{poll.course_id}, 'Course', 0, 'Poll', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
  end

  if tid_str != ""
    tid_sql = "insert into tidings (user_id, trigger_user_id, container_id, container_type, parent_container_id, parent_container_type, belong_container_id, belong_container_type, viewed, tiding_type, created_at, updated_at) values" + tid_str
    ActiveRecord::Base.connection.execute tid_sql
  end
end

def create_polls_list poll
  str = ""
  poll.course.student.find_each do |student|
    str += "," if str != ""
    str += "(#{student.user_id},#{poll.id}, 0, '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
  end

  if str != ""
    sql = "insert into poll_users (user_id, poll_id, commit_status, created_at, updated_at) values" + str
    ActiveRecord::Base.connection.execute sql
  end
end

def create_exercises_tiding exercise, members
  tid_str = ""
  if exercise.tidings.where(:parent_container_type => "ExercisePublish", :user_id => exercise.course.teachers.map(&:user_id)).count == 0
    exercise.course.teachers.find_each do |member|
      tid_str += "," if tid_str != ""
      tid_str += "(#{member.user_id}, #{exercise.user_id}, #{exercise.id}, 'Exercise', #{exercise.id}, 'ExercisePublish', #{exercise.course.id}, 'Course', 0, 'Exercise', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
    end
  end

  members.find_each do |student|
    tid_str += "," if tid_str != ""
    tid_str += "(#{student.user_id}, #{exercise.user_id}, #{exercise.id}, 'Exercise', #{exercise.id}, 'ExercisePublish', #{exercise.course_id}, 'Course', 0, 'Exercise', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
  end

  if tid_str != ""
    tid_sql = "insert into tidings (user_id, trigger_user_id, container_id, container_type, parent_container_id, parent_container_type, belong_container_id, belong_container_type, viewed, tiding_type, created_at, updated_at) values" + tid_str
    ActiveRecord::Base.connection.execute tid_sql
  end
end

def create_exercises_list exercise
  str = ""
  exercise.course.student.find_each do |student|
    str += "," if str != ""
    str += "(#{student.user_id}, #{exercise.id}, 0, '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
  end

  if str != ""
    sql = "insert into exercise_users (user_id, exercise_id, commit_status, created_at, updated_at) values" + str
    ActiveRecord::Base.connection.execute sql
  end
end

def create_works_tiding homework, members
  tid_str = ""
  if homework.tidings.where(:parent_container_type => "HomeworkPublish", :user_id => homework.course.teachers.map(&:user_id)).count == 0
    homework.course.teachers.find_each do |member|
      tid_str += "," if tid_str != ""
      tid_str += "(#{member.user_id}, #{homework.user_id}, #{homework.id}, 'HomeworkCommon', #{homework.id}, 'HomeworkPublish', #{homework.course.id}, 'Course', 0, 'HomeworkCommon', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
    end
  end
  members.find_each do |student|
    tid_str += "," if tid_str != ""
    tid_str += "(#{student.user_id}, #{homework.user_id}, #{homework.id}, 'HomeworkCommon', #{homework.id}, 'HomeworkPublish', #{homework.course_id}, 'Course', 0, 'HomeworkCommon', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
  end
  if tid_str != ""
    tid_sql = "insert into tidings (user_id, trigger_user_id, container_id, container_type, parent_container_id, parent_container_type, belong_container_id, belong_container_type, viewed, tiding_type, created_at, updated_at) values" + tid_str
    ActiveRecord::Base.connection.execute tid_sql
  end
end

def create_works_list homework
  if homework.course.present? && homework.course.student.count > 0
    str = ""
    name = homework.name
    name_str = name + "的作品提交"
    homework.course.student.each do |student|
      str += "," if str != ""
      str += "('#{name_str}',#{homework.id},#{student.user_id}, '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
    end
    if str != ""
      sql = "insert into student_works (name, homework_common_id, user_id, created_at, updated_at) values" + str
      ActiveRecord::Base.connection.execute sql
    end
  end
end

def add_to_homework_bank_f homework
  homework_bank = HomeworkBank.new(:name => homework.name, :description => homework.description, :user_id => User.current.id, :homework_type => homework.homework_type,
                                   :quotes => 1, :is_public => 0, :applicable_syllabus => homework.course.course_list_name, :homework_common_id => homework.id,
                                   :reference_answer => homework.reference_answer, :course_list_id => homework.course.course_list_id)
  if homework.homework_type == 2 && homework.homework_detail_programing
    homework_bank.language = homework.homework_detail_programing.language
    homework.homework_tests.each_with_index do |homework_test|
      homework_bank.homework_bank_tests << HomeworkBankTest.new(
          input: homework_test.input,
          output: homework_test.output
      )
    end
    homework.homework_samples.each_with_index do |homework_test|
      homework_bank.homework_bank_samples << HomeworkBankSample.new(
          input: homework_test.input,
          output: homework_test.output
      )
    end
  elsif homework.homework_type == 3 && homework.homework_detail_group
    homework_bank.min_num = homework.homework_detail_group.min_num
    homework_bank.max_num = homework.homework_detail_group.max_num
    homework_bank.base_on_project = homework.homework_detail_group.base_on_project
  end
  homework.attachments.each do |attachment|
    att = attachment.copy
    att.container_id = nil
    att.container_type = nil
    att.author_id = homework_bank.user_id
    att.copy_from = attachment.id
    att.save
    homework_bank.attachments << att
  end
  homework_bank
end

# 获取项目动态更新时间
def get_forge_act_message(act, type)
  forge_act = ForgeActivity.where(:forge_act_id => act.id, :forge_act_type => type).first
  format_time(forge_act.nil? ? act.created_on : forge_act.try(:updated_at))
end

#作业类型
def homework_type_option
  type = []
  option0 = []
  option0 << "请选择作业类型"
  option0 << 0
  option1 = []
  option1 << "普通作业"
  option1 << 1
  option2 = []
  option2 << "编程作业"
  option2 << 2
  option3 = []
  option3 << "分组作业"
  option3 << 3
  type << option0
  type << option1
  type << option2
  type << option3
  type
end

# 竞赛题目类型
def work_type_option
  type = []
  option0 = []
  option0 << "请选择竞赛类型"
  option0 << 0
  option1 = []
  option1 << "普通竞赛"
  option1 << 1
  # option2 = []
  # option2 << "编程作业"
  # option2 << 2
  option3 = []
  option3 << "团队竞赛"
  option3 << 3
  type << option0
  type << option1
  #type << option2
  type << option3
  type
end

# 当前用户可见的某竞赛下的作品数
def visable_contest_work contest
  if User.current.admin? || User.current.admin_of_contest?(contest)
    work_num = contest.works.count
  else
    work_num = contest.works.where("work_status > 0").count
  end
  work_num
end

def searchstudent_by_name users, name
  mems = []
  if name != ""
    name = name.to_s.downcase
    users.each do |m|
      username = m.lastname.to_s.downcase + m.firstname.to_s.downcase
      if(m.login.to_s.downcase.include?(name) || m.user_extensions[:student_id].to_s.downcase.include?(name) || username.include?(name))
        mems << m
      end
    end
  else
    mems = users
  end
  mems
end

def contest_feedback_count
  @contest.journals_for_messages.where('m_parent_id IS NULL').count
end

def add_reply_adapter obj, options
  #modify by nwb
  #添加对课程留言的支持
  #留言回复应该不关系其所属的Class，而关心的是其所属的父留言
  case obj.jour_type
    when 'Principal'
      obj.jour.add_jour(nil, nil, nil, options)
    when 'Project'
      Project.add_new_jour(nil, nil, obj.jour_id, options)
    when 'Course'
      Course.add_new_jour(nil, nil, obj.jour_id, options)
    when 'Contest'
      Contest.add_new_jour(nil, nil, obj.jour_id, options)
    #when 'Bid'
    #  obj.jour.add_jour(nil, nil, nil, options)
    #when 'Contest'
    #  obj.jour.add_jour(nil, nil, obj.jour_id, options)
    #when 'Softapplication'
    #  obj.jour.add_jour(nil, nil, obj.jour_id, options)
    #when 'HomeworkAttach'
    #  obj.jour.add_jour(nil, nil, obj.jour_id, options)
  end
  # obj = obj_distinguish_url_origin || User.find_by_id(2)
  # if obj.kind_of? User
  #   obj.add_jour(nil, nil, nil, options)
  # elsif obj.kind_of? Project
  #   Project.add_new_jour(nil, nil, obj.id, options)
  # elsif obj.kind_of? Course
  #   Course.add_new_jour(nil, nil, obj.id, options)
  # elsif obj.kind_of? Bid
  #   obj.add_jour(nil, nil, nil, options)
  # elsif obj.kind_of? Contest
  #   obj.add_jour(nil, nil, obj.id, options)   #new added
  # elsif obj.kind_of? Softapplication
  #   obj.add_jour(nil, nil, obj.id, options)   #new added
  # elsif obj.kind_of? HomeworkAttach
  #   obj.add_jour(nil, nil, obj.id, options)   #new added
  # else
  #   raise "create reply obj unknow type.#{obj.class}"
  # end
end

def sy_resources syllabus
  courses = syllabus.courses.not_deleted
  attachments = Attachment.where(:container_type => 'Course', :container_id => courses.map(&:id))
  resources = ResourceBank.where(:id => attachments.map(&:resource_bank_id))
  resources
end

def sy_homeworks syllabus
  courses = syllabus.courses.not_deleted
  homeworks = HomeworkCommon.where(:course_id => courses.map(&:id))
  homeworks = HomeworkBank.where(:id => homeworks.map(&:homework_bank_id))
  homeworks
end

# 课堂学生的评测次数
def course_eval_count course
  Output.find_by_sql("select sum(g.evaluate_count) as evaluating_count from games g inner join
    (select myshixun_id from student_works sw inner join homework_commons hc on sw.homework_common_id=hc.id and
    sw.myshixun_id !=0 and hc.course_id=#{course.id} and homework_type=4) aa on g.myshixun_id=aa.myshixun_id").first.try(:evaluating_count).to_i
end

# 可以查看到资源库的资源
def visable_attachemnts_incourse course
  return[] unless course
  result = []
  course.attachments.each do |attachment|
    if attachment.unified_setting
      if attachment.is_public? && attachment.is_publish == 1 || User.current == attachment.author || User.current.allowed_to?(:as_teacher,course) || (User.current.member_of_course?(course) && attachment.is_publish == 1) || User.current.admin?
        result << attachment
      end
    else
      if attachment.is_public? && attachment.is_publish == 1 && !User.current.member_of_course?(course) || User.current == attachment.author || User.current.allowed_to?(:as_teacher,course) || User.current.admin?
        result << attachment
      elsif User.current.member_of_course?(course) && attachment.is_publish == 1
        member = course.members.where(:user_id => User.current.id).first
        if member.try(:course_group_id).to_i == 0 && attachment.unified_setting
          result << attachment
        elsif attachment.attachment_group_settings.where("course_group_id = #{member.try(:course_group_id)} and publish_time > '#{Time.now}'").count == 0
          result << attachment
        end
      end
    end
  end
  result
end

def visable_course_poll course, is_teacher
  if is_teacher
    poll_num = course.polls.count
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      poll_num = course.polls.where("publish_time <= '#{Time.now}' and unified_setting = 1").count
    else
      not_poll_ids = course.poll_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_poll_ids = not_poll_ids.blank? ? "(-1)" : "(" + not_poll_ids.map(&:poll_id).join(",") + ")"
      poll_num = course.polls.where("publish_time <= '#{Time.now}' and id not in #{not_poll_ids}").count
    end
  else
    poll_num = course.polls.where("publish_time <= '#{Time.now}' and unified_setting = 1").count
  end
  poll_num
end

def visable_course_exercise course, is_teacher
  if is_teacher
    exercise_num = course.exercises.count
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      exercise_num = course.exercises.where("publish_time <= '#{Time.now}' and unified_setting = 1").count
    else
      not_exercise_ids = course.exercise_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_exercise_ids = not_exercise_ids.blank? ? "(-1)" : "(" + not_exercise_ids.map(&:exercise_id).join(",") + ")"
      exercise_num = course.exercises.where("publish_time <= '#{Time.now}' and id not in #{not_exercise_ids}").count
    end
  else
    exercise_num = course.exercises.where("publish_time <= '#{Time.now}' and unified_setting = 1").count
  end
  exercise_num
end

def visable_course_homework course, type=0, is_teacher, category_id
  category_str = category_id.nil? ? "is null" : "= #{category_id}"
  if is_teacher
    if type != 0
      homework_num = course.homework_commons.where("homework_type = #{type} and course_homework_category_id #{category_str}").count
    else
      homework_num = course.homework_commons.where(:homework_type => [1,3,4]).count
    end
  elsif User.current.member_of_course?(course)
    member = course.members.where(:user_id => User.current.id).first
    if member.try(:course_group_id).to_i == 0
      if type != 0
        homework_num = course.homework_commons.where("homework_commons.homework_type = #{type} and publish_time <= '#{Time.now}' and unified_setting = 1 and course_homework_category_id #{category_str}").count
      else
        homework_num = course.homework_commons.where("homework_type in (1, 3, 4) and publish_time <= '#{Time.now}' and unified_setting = 1").count
      end
    else
      not_homework_ids = course.homework_group_settings.where("course_group_id = #{member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)")
      not_homework_ids = not_homework_ids.blank? ? "(-1)" : "(" + not_homework_ids.map(&:homework_common_id).join(",") + ")"
      if type != 0
        homework_num = course.homework_commons.where("homework_commons.homework_type = #{type} and publish_time <= '#{Time.now}' and id not in #{not_homework_ids} and course_homework_category_id #{category_str}").count
      else
        homework_num = course.homework_commons.where("homework_type in (1, 3, 4) and publish_time <= '#{Time.now}' and id not in #{not_homework_ids}").count
      end
    end
  else
    if type != 0
      homework_num = course.homework_commons.where("homework_type = #{type} and publish_time <= '#{Time.now}' and unified_setting = 1 and course_homework_category_id #{category_str}").count
    else
      homework_num = course.homework_commons.where("homework_type in (1, 3, 4) and publish_time <= '#{Time.now}' and unified_setting = 1").count
    end
  end
  homework_num
end

def visible_task_count course, is_teacher
  task_count = 0
  if is_teacher
    task_count = course.graduation_tasks.count
  else
    task_count = course.graduation_tasks.where("publish_time <= '#{Time.now}'").count
  end
  task_count
end

#成绩计算
def set_final_score homework,student_work
  if homework && homework.homework_detail_manual && !student_work.ultimate_score
    if !homework.homework_detail_manual.final_mode
      tea_ass_proportion = homework.homework_detail_manual.ta_proportion
      tea_proportion = homework.homework_detail_manual.te_proportion
      if homework.homework_type != 2 #非编程作业
        if student_work.teacher_score
          if student_work.teaching_asistant_score.nil?
            if student_work.student_score.nil?
              student_work.final_score = student_work.teacher_score
            else
              te_proportion = tea_proportion + tea_ass_proportion / 2
              final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{te_proportion}")
              final_s_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{te_proportion}"))
              final_score = final_te_score + final_s_score
              student_work.final_score = format("%.2f",final_score.to_f)
            end
          else
            if student_work.student_score.nil?
              te_proportion = tea_proportion + (1.0 - tea_proportion - tea_ass_proportion) / 2
              final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{te_proportion}")
              final_ta_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{te_proportion}"))
              final_score = final_te_score + final_ta_score
              student_work.final_score = format("%.2f",final_score.to_f)
            else
              final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{tea_proportion}")
              final_ta_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * BigDecimal.new("#{tea_ass_proportion}")
              final_s_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{tea_proportion}") - BigDecimal.new("#{tea_ass_proportion}"))
              final_score = final_te_score + final_ta_score + final_s_score
              student_work.final_score = format("%.2f",final_score.to_f)
            end
          end
        else
          if student_work.teaching_asistant_score.nil?
            student_work.final_score = student_work.student_score
          elsif student_work.student_score.nil?
            student_work.final_score = student_work.teaching_asistant_score
          else
            ta_proportion = tea_ass_proportion + tea_proportion / 2
            final_ta_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * BigDecimal.new("#{ta_proportion}")
            final_s_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{ta_proportion}"))
            final_score = final_ta_score + final_s_score
            student_work.final_score = format("%.2f",final_score.to_f)
          end
        end
      elsif homework.homework_type == 2 && homework.homework_detail_programing #编程作业-----设定：系统评分必定不为空
        #if homework.teacher_priority == 1 #教师优先
        sy_proportion = homework.homework_detail_programing.ta_proportion
        if student_work.teacher_score
          if student_work.teaching_asistant_score.nil? #教辅未评分
            if student_work.student_score.nil?
              ta_proportion = tea_proportion + (1 - tea_proportion - sy_proportion) / 2
              final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{ta_proportion}")
              final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{ta_proportion}"))
              final_score = final_sy_score + final_te_score
              student_work.final_score = format("%.2f",final_score.to_f)
            else
              rest_proportion = tea_ass_proportion / 3
              final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{sy_proportion + rest_proportion}")
              final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{tea_proportion + rest_proportion}")
              final_st_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{sy_proportion + rest_proportion}") - BigDecimal.new("#{tea_proportion + rest_proportion}"))
              final_score = final_sy_score + final_te_score + final_st_score
              student_work.final_score = format("%.2f",final_score.to_f)
            end
          elsif student_work.student_score.nil? #学生未评分
            rest_proportion = (1 - tea_proportion - sy_proportion - tea_ass_proportion) / 3
            final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{sy_proportion + rest_proportion}")
            final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{tea_proportion + rest_proportion}")
            final_ta_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{sy_proportion + rest_proportion}") - BigDecimal.new("#{tea_proportion + rest_proportion}"))
            final_score = final_sy_score + final_te_score + final_ta_score
            student_work.final_score = format("%.2f",final_score.to_f)
          else
            final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{sy_proportion}")
            final_te_score = BigDecimal.new("#{student_work.teacher_score}") * BigDecimal.new("#{tea_proportion}")
            final_ta_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * BigDecimal.new("#{tea_ass_proportion}")
            final_s_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0') - BigDecimal.new("#{sy_proportion}") - BigDecimal.new("#{tea_proportion}") - BigDecimal.new("#{tea_ass_proportion}"))
            final_score = final_sy_score + final_ta_score + final_te_score + final_st_score
            student_work.final_score = format("%.2f",final_score.to_f)
          end
        else
          if student_work.teaching_asistant_score.nil? #教辅未评分
            if student_work.student_score.nil?
              student_work.final_score = student_work.system_score
            else
              ta_proportion = sy_proportion + (tea_ass_proportion + tea_proportion) / 2
              final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{ta_proportion}")
              final_st_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{ta_proportion}"))
              final_score = final_sy_score + final_st_score
              student_work.final_score = format("%.2f",final_score.to_f)
            end
          elsif student_work.student_score.nil? #学生未评分
            if student_work.teaching_asistant_score.nil?
              student_work.final_score = student_work.system_score
            else
              ta_proportion = sy_proportion + (1.0 - tea_ass_proportion - sy_proportion) / 2
              final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{ta_proportion}")
              final_ts_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{ta_proportion}"))
              final_score = final_sy_score + final_ts_score
              student_work.final_score = format("%.2f",final_score.to_f)
            end
          else
            rest_proportion = tea_proportion / 3
            final_sy_score = BigDecimal.new("#{student_work.system_score || 0}") * BigDecimal.new("#{sy_proportion + rest_proportion}")
            final_ts_score = BigDecimal.new("#{student_work.teaching_asistant_score}") * BigDecimal.new("#{tea_ass_proportion + rest_proportion}")
            final_st_score = BigDecimal.new("#{student_work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{sy_proportion + rest_proportion}") - BigDecimal.new("#{tea_ass_proportion + rest_proportion}"))
            final_score = final_sy_score + final_ts_score + final_st_score
            student_work.final_score = format("%.2f",final_score.to_f)
          end
        end
      end
    else
      if homework.homework_type != 2
        if student_work.teacher_score
          student_work.final_score = student_work.teacher_score
        else
          if student_work.teaching_asistant_score.nil?
            student_work.final_score = student_work.student_score
          else
            student_work.final_score = student_work.teaching_asistant_score
          end
        end
      elsif homework.homework_type == 2 && homework.homework_detail_programing
        if student_work.teacher_score
          student_work.final_score = student_work.teacher_score
        else
          if student_work.teaching_asistant_score
            student_work.final_score = student_work.teaching_asistant_score
          else
            if student_work.system_score
              student_work.final_score = student_work.system_score
            else
              student_work.final_score = student_work.student_score
            end
          end
        end
      end
    end
    if student_work.final_score
      score = student_work.final_score - student_work.absence_penalty - student_work.late_penalty - student_work.appeal_penalty
      student_work.work_score = format("%.2f",(score < 0 ? 0 : score).to_f) if score
    else
      student_work.work_score = nil
    end
  end
end

# 计算实训作品学生的效率分
def update_student_eff_score homework
  if homework.work_efficiency && homework.max_efficiency != 0
    homework.student_works.where("compelete_status != 0").each do |student_work|
      eff_score = student_work.efficiency / homework.max_efficiency * homework.eff_score
      student_work.eff_score = format("%.2f", eff_score)
      unless student_work.ultimate_score
        work_score = student_work.final_score + student_work.eff_score - student_work.late_penalty
        student_work.work_score = format("%.2f", work_score < 0 ? 0 : work_score)
      end
      student_work.save
    end
  else
    homework.student_works.where("compelete_status != 0").each do |student_work|
      student_work.eff_score = 0
      unless student_work.ultimate_score
        work_score = student_work.final_score + student_work.eff_score - student_work.late_penalty
        student_work.work_score = format("%.2f", work_score < 0 ? 0 : work_score)
      end
      student_work.save
    end
  end
end

# 实训作业的评分
def set_shixun_final_score student_work, answer_open_evaluation, homework_challenge_settings
  unless student_work.work_status == 0
    myshixun = student_work.myshixun
    final_score = 0
    compelete = true
    max_endtime = ""
    user_total_score = 0
    pass_consume_time = 0
    homework_challenge_settings.each do |setting|
      game = myshixun.games.where(:challenge_id => setting.challenge_id, :status => 2).first
      unless game.nil?
        pass_consume_time += (game.cost_time / 60.0).to_f
        user_total_score += game.final_score.to_i < 0 ? 0 : game.challenge.score.to_i
        adjust_score = student_work.challenge_work_scores.where(:challenge_id => setting.challenge_id).last
        final_score += adjust_score.present? ? adjust_score.score : (answer_open_evaluation ? setting.score : (game.final_score >= 0 ? setting.score : 0))
        max_endtime = max_endtime == "" ? game.end_time : (game.end_time > max_endtime ? game.end_time : max_endtime)
      else
        compelete = false
      end
    end

    efficiency = (pass_consume_time == 0 ? 0 : Math.log((user_total_score / pass_consume_time.to_f) + 1.0))
    student_work.efficiency = efficiency < 0 ? 0 : format("%.2f", efficiency)

    if compelete && max_endtime != ""
      homework = student_work.homework_common
      member = Member.find_by_sql("select course_group_id from members where course_id = #{homework.course_id} and user_id = #{student_work.user_id}").first
      setting_time = homework_group_setting homework, member.try(:course_group_id)
      if setting_time.publish_time.present? && setting_time.end_time.present?
        if max_endtime < setting_time.publish_time
          student_work.compelete_status = 2
        else
          if max_endtime < setting_time.end_time || (homework.allow_late && (homework.course.end_date.nil? || max_endtime < homework.course.end_date.end_of_day))
            student_work.compelete_status = 1
            student_work.cost_time = max_endtime.to_i - setting_time.publish_time.to_i
          else
            student_work.compelete_status = 0
          end
        end
      end

      if homework.work_efficiency
        if homework.max_efficiency < student_work.efficiency
          homework.max_efficiency = student_work.efficiency
          homework.update_column("max_efficiency", homework.max_efficiency)
        end
        eff_score = homework.max_efficiency == 0 ? 0 : student_work.efficiency / homework.max_efficiency * homework.eff_score
        student_work.eff_score = format("%.2f", eff_score)
      else
        student_work.eff_score = 0
      end
    elsif !compelete
      student_work.compelete_status = 0
    end
    student_work.final_score = format("%.2f", final_score.to_f)
    score = student_work.final_score + student_work.eff_score - student_work.late_penalty
    student_work.work_score = format("%.2f", score < 0 ? 0 : score.to_f) unless student_work.ultimate_score
    student_work.save!
  end
end

# 用户评测时更新实训作业成绩
def update_myshixun_work_score myshixun
  student_works = myshixun.student_works
  #logger.info("#############student_works_count: #{student_works.count}")
  if student_works.count > 0
    student_works.each do |work|
      homework = work.homework_common
      member = Member.find_by_sql("select course_group_id from members where course_id = #{homework.course_id} and user_id = #{User.current.id}").first
      #logger.info("#############member_course_group_id: #{member.try(:course_group_id)}")
      setting_time = homework_group_setting homework, member.try(:course_group_id)
      if setting_time.end_time.present? && (setting_time.end_time > Time.now || (homework.allow_late && !homework.course.is_end))
        #logger.info("#############setting_time: #{setting_time.end_time}")

        user_total_score = 0
        pass_consume_time = 0
        final_score = 0
        homework.homework_challenge_settings.each do |setting|
          game = myshixun.games.where(:challenge_id => setting.challenge_id, :status => 2).first
          unless game.nil?
            pass_consume_time += (game.cost_time / 60.0).to_f
            user_total_score += game.final_score.to_i < 0 ? 0 : game.challenge.score.to_i
            adjust_score = work.challenge_work_scores.where(:challenge_id => setting.challenge_id).last
            final_score += adjust_score.present? ? adjust_score.score : (homework.homework_detail_manual.answer_open_evaluation ? setting.score : (game.final_score >= 0 ? setting.score : 0))
          end
        end
        if work.work_status == 0
          is_complete = myshixun.is_complete? && (myshixun.done_time < setting_time.end_time)
          work.work_status = setting_time.end_time > Time.now ? 1 : (is_complete ? 1 : 2)
          work.late_penalty = setting_time.end_time > Time.now ? 0 : (is_complete ? 0 : homework.late_penalty)
          work.commit_time = myshixun.created_at > setting_time.publish_time ? setting_time.publish_time : myshixun.created_at
          work.myshixun_id = myshixun.id
        end

        efficiency = (pass_consume_time == 0 ? 0 : Math.log((user_total_score / pass_consume_time.to_f) + 1.0))
        work.efficiency = format("%.2f", efficiency)

        games = myshixun.games.where(:challenge_id => homework.homework_challenge_settings.map(&:challenge_id))
        myshixun_endtime = games.select{|game| game.status == 2}.size == games.size ? games.map(&:end_time).max : nil
        if myshixun_endtime.present?
          min_efficiency_changed = min_efficiency_changed.present? ? min_efficiency_changed : false
          work.compelete_status = 1
          work.cost_time = myshixun_endtime.to_i - setting_time.publish_time.to_i

          # 计算作品的效率分（已完成才计算）
          if homework.work_efficiency
            # 如果作业的最大效率值有变更则更新所有作品的效率分
            if homework.max_efficiency < work.efficiency
              homework.max_efficiency = work.efficiency
              homework.update_column("max_efficiency", homework.max_efficiency)
              update_student_eff_score homework
            end
            eff_score = homework.max_efficiency == 0 ? 0 : work.efficiency / homework.max_efficiency * homework.eff_score
            work.eff_score = format("%.2f", eff_score)
          end
        end

        work.update_time = Time.now

        # 为迁移的数据做特殊处理， 若分数小于当前通关分数则不更新
        work.final_score = final_score if work.final_score.nil? || final_score > work.final_score
        score = work.final_score + work.eff_score - work.late_penalty
        work.work_score = format("%.2f",(score < 0 ? 0 : score).to_f) unless work.ultimate_score
        #logger.info("#############work_score: #{score}")
        work.save!
      end
    end
  end
end

# 用户开启实训时更新作品状态
def update_myshixun_work_status myshixun
  student_works = StudentWork.find_by_sql("SELECT sw.* FROM student_works sw, homework_commons_shixuns hcs WHERE sw.user_id = #{User.current.id} AND sw.`homework_common_id` = hcs.`homework_common_id` AND hcs.`shixun_id` = #{myshixun.shixun_id} and sw.work_status = 0")
  logger.info("#############student_works_count: #{student_works.count}")
  if student_works.count > 0
    student_works.each do |work|
      homework = work.homework_common
      member = Member.find_by_sql("select course_group_id from members where course_id = #{homework.course_id} and user_id = #{User.current.id}").first
      setting_time = homework_group_setting homework, member.try(:course_group_id)
      if setting_time.end_time.present? && (setting_time.end_time > Time.now || (homework.allow_late && !homework.course.is_end))
        logger.info("#############setting_time: #{setting_time.end_time}")
        work.work_status = setting_time.end_time > Time.now ? 1 : 2
        work.late_penalty = setting_time.end_time > Time.now ? 0 : homework.late_penalty
        work.update_time = Time.now
        work.commit_time = Time.now
        work.myshixun_id = myshixun.id
        work.save
      end
    end
  end
end

def quote_resource_bank resource, course
  atta = Attachment.new(:filename => resource.filename, :disk_filename => resource.disk_filename, :filesize => resource.filesize, :digest => resource.digest, :downloads => 0, :is_publish => 0,
                        :author_id => User.current.id, :description => resource.description, :disk_directory => resource.disk_directory, :is_public => 0, :copy_from => resource.copy_from.nil? ? resource.id : resource.copy_from,
                        :quotes => 0, :resource_bank_id => resource.id, :created_on => Time.now, :content_type =>resource.content_type)
  if course.attachments << atta
    # 更新引用次数
    quotes = resource.quotes.to_i + 1
    resource.update_attribute(:quotes, quotes)
  end
end

def quote_homework_bank homework, course
  new_homework = HomeworkCommon.new(:name => homework.name, :user_id => User.current.id, :description => homework.description, :homework_type => homework.homework_type, :late_penalty => 5,
                                    :course_id => course.id, :teacher_priority => 1, :anonymous_comment => 1, :quotes => 0, :is_open => 0, :homework_bank_id => homework.id, :score_open => 1,
                                    :anonymous_appeal => 0, :is_public => 0, :reference_answer => homework.reference_answer, :answer_public => 1, :allow_late => 1)

  new_homework.homework_detail_manual = HomeworkDetailManual.new
  new_homework_detail_manual = new_homework.homework_detail_manual
  new_homework_detail_manual.te_proportion = 1.0
  new_homework_detail_manual.ta_proportion = 0
  new_homework_detail_manual.comment_status = 0

  new_homework_detail_manual.evaluation_num = 0
  new_homework_detail_manual.absence_penalty = 0

  if new_homework.homework_type == 2
    new_homework.homework_detail_programing = HomeworkDetailPrograming.new
    new_homework.homework_detail_programing.ta_proportion = 0
    new_homework.homework_detail_programing.language = homework.language
    homework.homework_bank_tests.each_with_index do |homework_test|
      new_homework.homework_tests << HomeworkTest.new(
          input: homework_test.input,
          output: homework_test.output
      )
    end
    homework.homework_bank_samples.each_with_index do |homework_test|
      new_homework.homework_samples << HomeworkSample.new(
          input: homework_test.input,
          output: homework_test.output
      )
    end
  end

  if new_homework.homework_type == 3
    new_homework.homework_detail_group = HomeworkDetailGroup.new
    new_homework.homework_detail_group.min_num = homework.min_num
    new_homework.homework_detail_group.max_num = homework.max_num
    new_homework.homework_detail_group.base_on_project = homework.base_on_project
  end

  homework.attachments.each do |attachment|
    att = attachment.copy
    att.container_id = nil
    att.container_type = nil
    att.author_id = homework.user_id
    att.copy_from = attachment.id
    att.save
    new_homework.attachments << att
  end

  if new_homework.save
    if new_homework.homework_type == 4
      HomeworkCommonsShixuns.create(:homework_common_id => new_homework.id, :shixun_id => homework.homework_bank_shixun.shixun_id)
    end
    new_homework_detail_manual.save if new_homework_detail_manual
    new_homework.homework_detail_programing.save if new_homework.homework_detail_programing
    new_homework.homework_detail_group.save if new_homework.homework_detail_group
    create_works_list new_homework

    homework.update_column(:quotes, homework.quotes+1)
    QuestionBank.where(:container_id => homework.id, :container_type => ["Common", "Shixun", "Group"]).update_all(:quotes => homework.quotes)
  end
  return new_homework
end

def quote_exercise_bank exercise, course
  new_exercise = Exercise.new(:exercise_name => exercise.name, :exercise_description => exercise.description, :user_id => User.current.id, :is_public => 0,
                              :exercise_status => 1, :show_result => 1, :course_id => course.id, :time => -1, :exercise_bank_id => exercise.id)

  exercise.exercise_bank_questions.each do |q|
    option = {
        :question_title => q[:question_title],
        :question_type => q[:question_type] || 1,
        :question_number => q[:question_number],
        :question_score => q[:question_score],
        :shixun_id => q[:shixun_id]
    }
    exercise_question = new_exercise.exercise_questions.new option

    if q.question_type != 5
      for i in 1..q.exercise_bank_choices.count
        choice_option = {
            :choice_position => i,
            :choice_text => q.exercise_bank_choices[i-1][:choice_text]
        }
        exercise_question.exercise_choices.new choice_option
      end

      for i in 1..q.exercise_bank_standard_answers.count
        standard_answer_option = {
            :exercise_choice_id => q.exercise_bank_standard_answers[i-1][:exercise_bank_choice_id],
            :answer_text => q.exercise_bank_standard_answers[i-1][:answer_text]
        }
        exercise_question.exercise_standard_answers.new standard_answer_option
      end
    else
      for i in 1..q.exercise_bank_shixun_challenges.count
        challenge_option = {
            :position => i,
            :challenge_id => q.exercise_bank_shixun_challenges[i-1][:challenge_id],
            :shixun_id => q.exercise_bank_shixun_challenges[i-1][:shixun_id],
            :question_score => q.exercise_bank_shixun_challenges[i-1][:question_score]
        }
        exercise_question.exercise_shixun_challenges.new challenge_option
      end
    end
  end
  if new_exercise.save
    create_exercises_list new_exercise
    exercise.update_column(:quotes, exercise.quotes+1)
    QuestionBank.where(:container_id => exercise.id, :container_type => "Exercise").update_all(:quotes => exercise.quotes)
  end
  return new_exercise
end

def quote_poll_bank poll, course
  new_poll = Poll.new(:polls_name => poll.name, :polls_description => poll.description, :user_id => User.current.id, :is_public => 0,
                      :polls_status => 1, :show_result => 1, :polls_type => 'Course', :course_id => course.id, :exercise_bank_id => poll.id)

  poll.exercise_bank_questions.each do |q|
    option = {
        :question_title => q[:question_title],
        :question_type => q[:question_type] || 1,
        :is_necessary => q[:is_necessary],
        :question_number => q[:question_number],
        :max_choices => q[:max_choices],
        :min_choices => q[:min_choices]
    }
    poll_question = new_poll.poll_questions.new option

    for i in 1..q.exercise_bank_choices.count
      choice_option = {
          :answer_position => i,
          :answer_text => q.exercise_bank_choices[i-1][:choice_text]
      }
      poll_question.poll_answers.new choice_option
    end
  end
  if new_poll.save
    create_polls_list new_poll
    poll.update_column(:quotes, poll.quotes+1)
    QuestionBank.where(:container_id => poll.id, :container_type => "Poll").update_all(:quotes => poll.quotes)
  end
  return new_poll
end

def major_level_option
  content = []
  option0 = []
  option0 << "选择课程所属专业层级"
  option0 << 0
  option1 = []
  option1 << "专科"
  option1 << 3
  option2 = []
  option2 << "本科"
  option2 << 2
  option3 = []
  option3 << "研究生"
  option3 << 1
  content << option0
  content << option1
  content << option2
  content << option3
  content
end

def discipline_category_option major_level = 3
  content = []
  option0 = []
  option0 << "选择课程所属学科门类"
  option0 << 0
  content << option0
  DisciplineCategory.where(:major_level => major_level).each do |dis|
    option = []
    option << dis.name.to_s
    option << dis.id
    content << option
  end
  content
end

def first_level_discipline_option disc_ca = 27
  content = []
  option0 = []
  option0 << "选择课程所属一级学科"
  option0 << 0
  content << option0
  FirstLevelDiscipline.where(:discipline_category_id => disc_ca).each do |fir_dis|
    option = []
    option << fir_dis.name.to_s
    option << fir_dis.id
    content << option
  end
  content
end

def syllabus_major_option fir_dis = 213
  content = []
  option0 = []
  option0 << "选择课程所属专业"
  option0 << 0
  content << option0
  Major.where(:first_level_discipline_id => fir_dis).each do |major|
    option = []
    option << major.name.to_s
    option << major.id
    content << option
  end
  content
end

def convert_to_char(str)
  result = ""
  length = str.length
  unless str.nil?
    if length === 1
      result += (str.to_i + 64).chr
      return result
    elsif length > 1
      for i in 0...length
        result += (str[i].to_i + 64).chr
      end
      return result
    end
  end
  return result
end

def convert_to_chi_num num
  result = ""
  case num.to_i
    when 1
      result = '一'
    when 2
      result = '二'
    when 3
      result = '三'
    when 4
      result = '四'
    when 5
      result = '五'
    when 6
      result = '六'
    when 7
      result = '七'
    when 8
      result = '八'
    when 9
      result = '九'
  end
  return result
end

#根据条件过滤作业结果
def search_work_member works,name
  if name == ""
    select_works = works
  else
    name = name.downcase
    select_works = works.select{ |work| work.user.user_extensions[:student_id].to_s.downcase.include?(name) || (work.user[:lastname].to_s.downcase + work.user[:firstname].to_s.downcase).include?(name)
    }
  end
  select_works
end

# 作业的分班设置时间
def homework_group_setting homework, group_id
  setting = nil
  if homework.homework_group_settings.where(:course_group_id => group_id).first
    setting = homework.homework_group_settings.where(:course_group_id => group_id).first
  else
    setting = homework
  end
  setting
end

# 试卷的分班设置时间
def exercise_group_setting exercise, group
  setting = nil
  if exercise.exercise_group_settings.where(:course_group_id => group.try(:id)).first
    setting = exercise.exercise_group_settings.where(:course_group_id => group.id).first
  else
    setting = exercise
  end
  setting
end

# 问卷的分班设置时间
def poll_group_setting poll, group
  setting = nil
  if poll.poll_group_settings.where(:course_group_id => group.try(:id)).first
    setting = poll.poll_group_settings.where(:course_group_id => group.id).first
  else
    setting = poll
  end
  setting
end

# 资源的分班设置时间
def attacment_group_setting attachment, group
  setting = nil
  if attachment.attachment_group_settings.where(:course_group_id => group.try(:id)).first
    setting = attachment.attachment_group_settings.where(:course_group_id => group.id).first
  else
    setting = attachment
  end
  setting
end

#统计答题百分比，统计结果保留两位小数
def statistics_result_percentage(e, t)
  e = e.to_f
  t = t.to_f
  t == 0 ? 0 : format("%.1f", e*100/t)
end

def subject_data subject
  result = {}
  subject_choices = 0
  subject_shixuns = 0
  subject_score = 0
  subject.stage_shixuns.each do |stage_shixun|
    shixun = stage_shixun.shixun
    subject_choices += shixun.challenges.where(:st => [1, 2]).count
    subject_shixuns += shixun.challenges.where(:st => 0).count
    subject_score += shixun.shixun_score
  end
  result[:subject_choices] = subject_choices
  result[:subject_shixuns] = subject_shixuns
  result[:subject_score] = subject_score
  result
end


def tiding_url tiding
  case tiding.container_type
    when "ApplyUserAuthentication"
      if tiding.tiding_type == "Apply"
        tiding.container.auth_type == 1 ? identity_authentication_managements_path : professional_authentication_managements_path
      else
        tiding.container.auth_type == 1 ? authentication_account_path : professional_certification_account_path
      end
    when "CancelUserAuthentication"
      authentication_account_path
    when "CancelUserProCertification"
      professional_certification_account_path
    when "ApplyAddDepartment"
      tiding.tiding_type == "Apply" ? depart_managements_path() : my_account_path()
    when "ApplyAddSchools"
      tiding.tiding_type == "Apply" ? unit_managements_path() : my_account_path()
    when "ApplyAction"
      tiding.tiding_type == "System" ? (tiding.parent_container_type == "ApplyShixun" ? shixun_path(Shixun.find(tiding.parent_container_id).identifier):(tiding.parent_container_type == "TrialAuthorization" ? user_path(tiding.user_id) : subject_path(tiding.parent_container_id))):(tiding.parent_container_type == "ApplyShixun" ? shixun_authorization_managements_path():(tiding.parent_container_type == "TrialAuthorization"? trial_authorization_managements_path(): subject_authorization_managements_path()))
    when 'JoinCourse'
      course_path(tiding.container_id, :type => "JoinCourse")
    when 'StudentJoinCourse', 'DealCourse', 'TeacherJoinCourse'
      course_path(tiding.container_id)
    when 'Course', 'ArchiveCourse'
      course_path(tiding.container_id)
    when 'Shixun'
      '/shixuns/' + tiding.container.identifier
    when 'Subject'
      '/paths/' + tiding.container_id.to_s
    when 'JournalsForMessage'
      case tiding.parent_container_type
        when "Principal"
          feedback_path(tiding.parent_container_id)
        when "HomeworkCommon"
          student_work_index_path(:homework => tiding.parent_container_id, :tab => 2)
        when "GraduationTopic"
          graduation_topic_path(tiding.parent_container_id, :tab => 2)
        when "StudentWorksScore"
          student_work_path(:id => tiding.container.try(:jour).try(:student_work_id))
      end
    when 'Message'
      board_message_path(tiding.container.board_id, tiding.parent_container_id)
    when 'Memo'
      forum_path(tiding.parent_container_id)
    when 'Watcher'
      user_path(tiding.trigger_user_id)
    when 'PraiseTread'
      try = tiding.parent_container_type.constantize
      object = try.find(tiding.parent_container_id)
      case tiding.parent_container_type
        when "Challenge"
          myshixun_id = Myshixun.where(:user_id => tiding.trigger_user_id, :shixun_id => Challenge.find(tiding.parent_container_id).shixun_id).first
          myshixun_game_path(Game.where(:myshixun_id => myshixun_id.id, :challenge_id => tiding.parent_container_id).first, :myshixun_id => myshixun_id)
        when "Discuss"
          myshixun_game_path(object.user_game, :myshixun_id => object.user_myshixun)
        when "Message"
          object.parent.present? ? board_message_path(object.board_id, object.root_id) : board_message_path(object.board_id, object)
        when "Memo"
          object.parent.present? ? forum_path(object.root_id) : forum_path(object)
        when "JournalsForMessage"
          case object.jour_type
            when "Principal"
              feedback_path(object.jour_id)
            when "HomeworkCommon"
              student_work_index_path(:homework => object.jour_id, :tab => 2)
            when "StudentWorksScore"
              student_work_path(:id => object.try(:jour).try(:student_work_id))
          end
        when "HomeworkCommon"
          student_work_index_path(:homework => tiding.parent_container_id, :tab => 2)
        when "Issue"
          issue_path(tiding.parent_container_id)
        when "Journal"
          issue_path(object.journalized_id)
      end
    when 'Discuss'
      shixun_discuss_shixun_path(tiding.container.dis)
    when 'Grade'
      user_grade_user_path(User.current)
    when 'JoinProject'
      project_path(tiding.container_id, :type => "applied_project")
    when 'ReporterJoinProject', 'DealProject', 'ManagerJoinProject'
      project_path(tiding.container_id)
    when 'Poll'
      case tiding.parent_container_type
        when 'CommitPoll'
          student_poll_list_poll_path(tiding.container, :tab => 2)
        else
          student_poll_list_poll_path(tiding.container)
      end
    when 'Exercise'
      case tiding.parent_container_type
        when 'CommitExercise', 'ExerciseScore'
          show_student_result_exercise_path(tiding.container,:user_id => tiding.trigger_user_id)
        else
          student_exercise_list_exercise_path(tiding.container)
      end
    when 'StudentGraduationTopic', 'DealStudentTopicSelect'
      graduation_topic_path(tiding.parent_container_id)
    when 'GraduationTask'
      graduation_task_path(tiding.container_id)
    when 'GraduationWork'
      graduation_work_path(tiding.container_id)
    when 'GraduationWorkScore'
      graduation_work_path(tiding.parent_container_id)
    when 'HomeworkCommon'
      case tiding.parent_container_type
        when 'AnonymousCommentFail'
          student_work_index_path(:homework => tiding.container_id, :tab => 4)
        when 'HomeworkPublish'
          student_work_index_path(:homework => tiding.container_id, :tab => 2)
        when 'AnonymousAppeal'
          work = tiding.container.student_works(:user_id => User.current.id).first
          work.present? ? student_work_path(work.try(:id)) : "javascript:void(0)"
        else
          student_work_index_path(:homework => tiding.container_id)
      end
    when 'StudentWork'
      student_work_path(tiding.container_id)
    when 'StudentWorksScore', 'StudentWorksScoresAppeal'
      student_work_path(tiding.parent_container_id)
    when 'ChallengeWorkScore'
      homework_common_path(tiding.container.try(:student_work).try(:homework_common_id))
    when 'SendMessage'
      mirror_repository_managements_path
    when 'Journal'
      issue_path(tiding.parent_container_id)
    when 'Issue'
      issue_path(tiding.container_id)
    when 'PullRequest'
      project_pull_requests_path(tiding.parent_container_id)
    when 'Department'
      my_account_path
  end
end

def create_shixun_homework_cha_setting homework, shixun
  if shixun.present?
    sum_score = 0
    total_score = 100.0 - homework.eff_score
    shixun.challenges.each_with_index do |challeng, index|
      if index < shixun.challenges.length - 1
        score = ((total_score / shixun.challenges.length) * total_score).floor / total_score
        sum_score += score
      else
        score = total_score - sum_score
      end
      HomeworkChallengeSetting.create(:homework_common_id => homework.id, :challenge_id => challeng.id, :shixun_id => shixun.id, :score => score)
    end
  end
end