pgfqe6ch8/app/services/courses_service.rb

1601 lines
69 KiB

6 years ago
#coding=utf-8
class CoursesService
include ApplicationHelper
include CoursesHelper
include HomeworkAttachHelper
include ApiHelper
include ActionView::Helpers::DateHelper
#参数school_id为0或不传时返回所有课程否则返回对应学校的课程
#参数per_page_count分页功能每页显示的课程数
#参数page分页功能当前页码
def course_list params, current_user
@school_id = params[:school_id]
per_page_option = params[:per_page_count] || 10
page_no = params[:page] || 1
if @school_id == "0" || @school_id.nil?
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id")
else
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id").
where("#{Course.table_name}.school_id = ?", @school_id)
end
@course_count = @courses_all.count
@course_pages = Redmine::Pagination::Paginator.new @course_count, per_page_option, page_no
@courses = @courses_all.order("created_at desc")
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
course_list = []
@courses.each do |course|
course_list << {:course => course, :img_url => url_to_avatar(course), :current_user_is_member => current_user.member_of_course?(course), :current_user_is_teacher => is_course_teacher(current_user, course)}
end
course_list
end
def add_board(current_user, course_id, board_name)
course = Course.find(course_id)
raise "权限不足" unless current_user.has_teacher_role(course)
position = 1
last_board = ::Board.where(course_id: course.id).order('position desc').first
if last_board.present?
position = last_board.position+1
end
::Board.create!(name: board_name,
description: board_name,
project_id: -1,
parent_id: 0,
topics_count: 0,
messages_count: 0,
position: position,
course_id: course.id
)
end
def edit_board(current_user, board_id, board_name)
board = ::Board.find(board_id)
raise "权限不足" unless current_user.has_teacher_role(board.course)
board.name = board_name
board.save!
return board
end
def user_courses_list(current_user)
courses = current_user.courses.not_deleted
courses.inject([]) {|course_list, course|
course_list << {:course => course, :img_url => url_to_avatar(course),
:current_user_is_member => current_user.member_of_course?(course),
:current_user_is_teacher => is_course_teacher(current_user, course),
course_student_num: searchStudent(course).count
}
}
end
#搜索课程
def search_course params, current_user
courses_all = Course.all_course
name = params[:name]
if name.blank?
raise 'sumbit empty'
end
@courses = courses_all.visible(current_user)
if params[:name].present?
@courses_all = @courses.like(params[:name]).order("created_at desc")
else
@courses_all = @courses.order("created_at desc");
end
@courses_all
course_list = []
@courses_all.each do |course|
course_list << {:course => course, :img_url => url_to_avatar(course), :current_user_is_member => current_user.member_of_course?(course), :current_user_is_teacher => is_course_teacher(current_user, course)}
end
course_list
end
#获取头像
def get_img obj
url_to_avatar(obj)
end
#课程老师或课程学生列表
def course_teacher_or_student_list params, course, current_user
if course.is_a?(Course)
c = course
else
c = Course.find(course)
end
# if current_user.nil? || !(current_user.admin? || c.is_public == 1 || (c.is_public == 0 && current_user.member_of_course?(c)))
if current_user.nil?
raise '403'
end
#@canShowCode = isCourseTeacher(User.current.id,course) && params[:role] != '1'
case params[:role]
when '1'
#@subPage_title = l :label_teacher_list
@members = searchTeacherAndAssistant(c)
when '2'
#@subPage_title = l :label_student_list
# @members = searchStudent(c)
@members = searchmember_by_name(student_homework_score(0, c.id, 0, "desc"), "")
else
#@subPage_title = ''
@members = c.member_principals.includes(:roles, :principal).all.sort
end
users = []
@members.each do |m|
img_url = "/images/" + url_to_avatar(m.user)
gender = m.user.user_extensions.gender.nil? ? 0 : m.user.user_extensions.gender
work_unit = get_user_work_unit m.user
location = get_user_location m.user
role_ids = []
m.roles.each do |r|
role_ids << r.id
end
#双重身份 学生列表中不显示
# unless (params[:role] == '2' && role_ids.length >= 2)
# users << {:id => m.user.id,
# :img_url => img_url,
# :nickname => m.user.nickname,
# :gender => gender,
# :work_unit => work_unit, :mail => m.user.mail, :location => location,
# role_name: m.roles.first.name,
# name: m.user.show_name,
# roles_id: role_ids.include?(7) ? 7 : (role_ids.include?(9) ? 9 : 10),
# :brief_introduction => m.user.user_extensions.brief_introduction,
# :realname => m.user.realname,
# :is_me => current_user.id == m.user.id ? 1 : 0}
# end
#
users << m.user
end
users
end
def reviewers_list course_id
reviewers = []
c = Course.find(course_id)
if c
messages = CourseMessage.where("course_id=? and course_message_type = 'JoinCourseRequest' and status = 0 ", course_id)
messages.each do |m|
user = User.find(m.course_message_id)
if user
img_url = url_to_avatar(user)
gender = user.user_extensions.gender.nil? ? 0 : user.user_extensions.gender
work_unit = get_user_work_unit user
location = get_user_location user
roles_ids = m.content.split(",")
reviewers << {:id => user.id, :img_url => img_url, :nickname => user.nickname, :gender => gender,
:work_unit => work_unit, :mail => user.mail, :location => location,
role_name: "",
name: user.show_name,
roles_id: roles_ids.include?("7") ? 7 : 9,
:brief_introduction => user.user_extensions.brief_introduction, :realname => user.realname}
end
end
end
reviewers
end
def get_reviewer_info params
status = -1
info = nil
c = Course.find(params[:course_id])
if c
messages = CourseMessage.where("course_id=? and course_message_id = ? and course_message_type = 'JoinCourseRequest' ", params[:course_id], params[:user_id]).last
if messages
#status 0未处理 1同意 2 通过
status = messages.status
user = User.find(params[:user_id])
if user
img_url = url_to_avatar(user)
gender = user.user_extensions.gender.nil? ? 0 : user.user_extensions.gender
work_unit = get_user_work_unit user
location = get_user_location user
roles_ids = messages.content.split(",")
info = {:id => user.id, :img_url => img_url, :nickname => user.nickname, :gender => gender,
:work_unit => work_unit, :mail => user.mail, :location => location,
role_name: "",
name: user.show_name,
roles_id: roles_ids.include?("7") ? 7 : 9,
:brief_introduction => user.user_extensions.brief_introduction, :realname => user.realname}
end
end
end
{status: status, reviewer: info}
end
def deal_join_apply params, current_user
status = -1
message = ""
c = Course.find(params[:course_id])
if c
messages = CourseMessage.where("course_id=? and course_message_id = ? and course_message_type = 'JoinCourseRequest' and status = 0 ", params[:course_id], params[:user_id]).first
if messages
apply_user = User.find(params[:user_id])
ids = messages.content.split(",") # content保存的是申请的职位角色
integer_ids = []
ids.each do |role_id|
integer_ids << role_id.to_i
end
if params[:type] == 0
if apply_user.member_of_course?(c)
#将角色改为老师或者教辅
member = c.members.where(:user_id => apply_user.id).all[0]
member.role_ids = integer_ids
#删除为学生的记录
unless member.role_ids.include?(10)
joined = StudentsForCourse.where('student_id = ? and course_id = ?', member.user_id, c.id)
joined.each do |join|
join.destroy
end
end
member.course_group_id = 0
member.save
CourseMessage.create(:user_id => apply_user.id, :course_id => c.id, :viewed => false, :content => messages.content, :course_message_id => current_user.id, :course_message_type => 'CourseRequestDealResult', :status => 1)
messages.update_attributes(:status => 1, :viewed => 1)
else
members = []
members << Member.new(:role_ids => integer_ids, :user_id => apply_user.id)
c.members << members
CourseMessage.create(:user_id => apply_user.id, :course_id => c.id, :viewed => false, :content => messages.content, :course_message_id => current_user.id, :course_message_type => 'CourseRequestDealResult', :status => 1)
messages.update_attributes(:status => 1, :viewed => 1)
end
if integer_ids.include?(9)
message = "您已同意教师" + apply_user.show_name + ",加入班级"
# send_wechat_join_class_notice apply_user,c,9,0
else
message = "您已同意助教" + apply_user.show_name + ",加入班级"
# send_wechat_join_class_notice apply_user,c,7,0
end
else
CourseMessage.create(:user_id => apply_user.id, :course_id => c.id, :viewed => false, :content => messages.content, :course_message_id => current_user.id, :course_message_type => 'CourseRequestDealResult', :status => 2)
messages.update_attributes(:status => 2, :viewed => 1)
if integer_ids.include?(9)
message = "您已拒绝教师" + apply_user.show_name + ",加入班级"
# send_wechat_join_class_notice apply_user,c,9,1
else
message = "您已拒绝助教" + apply_user.show_name + ",加入班级"
# send_wechat_join_class_notice apply_user,c,7,1
end
end
status = 0
else
message = "该申请不存在或已被处理"
end
else
message = "该班级不存在或已被删除"
end
{:status => status, :message => message}
end
#获取用户的工作单位
def get_user_work_unit user
work_unit = ""
if user.user_extensions.identity == 0 || user.user_extensions.identity == 1
work_unit = user.user_extensions.school.name unless user.user_extensions.school.nil?
elsif user.user_extensions.identity == 3
work_unit = user.user_extensions.occupation
elsif user.user_extensions.identity == 2
work_unit = user.firstname
end
work_unit
end
#获取用户地区
def get_user_location user
location = ""
location << (user.user_extensions.location || '')
location << (user.user_extensions.location_city || '')
location
end
#课程通知列表
def course_news_list params, current_user
if params[:course_id] && @course == nil
@course = Course.find(params[:course_id])
end
if current_user.nil? || !(current_user.admin? || @course.is_public == 1 || (@course.is_public == 0 && current_user.member_of_course?(@course)))
raise '403'
end
scope = @course ? @course.news.order("news.created_on desc").course_visible(current_user) : News.order("news.created_on desc").course_visible(current_user)
news = []
scope.each do |n|
news << {:id => n.id, :title => n.title, :author_name => n.author.name, :author_id => n.author.id, :author => n.author, :description => n.description, :created_on => format_time(n.created_on), :comments_count => n.comments_count}
end
news
end
#查看新闻权限验证
def show_course_news_authorize(current_user)
unless current_user.allowed_to?({:controller => 'news', :action => 'show'}, false)
raise '403'
end
end
#显示课程通知(包括评论) 需验证权限
def show_course_news params, current_user
@news = News.find(params[:id])
@course = @news.course
if @course
if current_user.nil? || !(current_user.admin? || @course.is_public == 1 || (@course.is_public == 0 && current_user.member_of_course?(@course)))
raise '403'
end
end
@comments = @news.comments.reorder("created_on desc")
@comments.reverse! if current_user.wants_comments_in_reverse_order?
{:news => @news, :comments => @comments}
#comments = []
#@comments.each do |comment|
# comments << {:author_id => comment.author_id,:author_name => comment.author.name,:commont_content => comment.comments,:time => format_time(comment.created_on)}
#end
#{:title => @news.title,:author_name => @news.author.name,:author_id => @news.author.id, :description => @news.description,:created_on => format_time(@news.created_on),
# :comments_count => @news.comments_count,:comments => comments}
end
#显示课程
def show_course(params, current_user)
course = Course.find(params[:id])
course.generate_invite_code
course.generate_qrcode
if course.school
work_unit = course.school.name
else
work_unit = get_user_work_unit course.teacher
end
# unless (course.is_public == 1 || current_user.member_of_course?(course) || current_user.admin?)
# raise '403'
# end
groupnum = 0
groupnum = course.course_groups.length if course.course_groups
{:course => course, :syllabus_title => course.syllabus.nil? ? "" : course.syllabus.title, :work_unit => work_unit, :img_url => "/images/" + url_to_avatar(course), :current_user_is_member => current_user.nil? ? false : current_user.member_of_course?(course), :current_user_is_teacher => current_user.nil? ? false : is_course_teacher(current_user, course), :course_student_num => course ? course.student.count.to_s : 0, :groupnum => groupnum}
end
#创建课程
#current_user当前用户对象不是id
# params[:course][:name]:课程名称
#params[:course][:password]:密码
#params[:course][:description]:描述
#params[:course][:is_public]:是否公开1公开0私有
#params[:course][:open_student]:是否公开学生列表1公开0不公开不公开时非课程成员无法看到学生列表
#params[:course][:course_type]:暂时默认给1值。
#params[:term]:学期(秋季学期或春季学期)
#params[:time]: 年份2014
#params[:setup_time]:暂不传(貌似已经没用了)
#params[:endup_time]: 暂不传(貌似已经没用了)
#params[:class_period]:学时总数
#params[:course][:publish_resource]允许学生上传资源
def create_course(params, current_user)
if current_user.user_extensions.identity
@course = Course.new
@course.extra = 'course' + DateTime.parse(Time.now.to_s).strftime('%Y-%m-%d_%H-%M-%S').to_s
@course.send(:safe_attributes=, params[:course], current_user)
#@course.safe_attributes(current_user,params[:course])
#@course.password = params[:course][:password]
@course.name = params[:course][:name]
@course.tea_id = current_user.id
#@course.syllabus_id = params[:syllabus_id].to_i
#@course.term = params[:term]
#@course.time = params[:time]
#@course.end_term = params[:end_term]
#@course.end_time = params[:end_time]
#@course.school_id = params[:occupation]
@course.school_id = current_user.user_extensions.school_id
#@course.setup_time = params[:setup_time]
#@course.endup_time = params[:endup_time]
@course.class_period = params[:period].to_i if params[:period]
@course.credit = params[:credit] if params[:credit]
@course.end_date = params[:end_date] if params[:end_date]
params[:course][:is_public] ? @course.is_public = 1 : @course.is_public = 0
@course.open_student = 0
@course.publish_resource = 1
if CourseList.where(:name => params[:course][:course_list].strip).count > 0
@course.course_list_id = CourseList.where(:name => params[:course][:course_list].strip).first.id
else
course_list = CourseList.create(:name => params[:course][:course_list].strip, :user_id => User.current.id, :is_admin => 0)
@course.course_list_id = course_list.id
end
else
end
@issue_custom_fields = IssueCustomField.sorted.all
@trackers = Tracker.sorted.all
if @course && @course.save
#copy_avatar(@course, @course.syllabus)
#unless User.current.admin?
r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
m = Member.new(:user => current_user, :roles => [r])
m.project_id = -1
course = CourseInfos.new(:user_id => current_user.id, :course_id => @course.id)
#user_grades = UserGrade.create(:user_id => User.current.id, :course_id => @course.id)
if params[:course][:is_public] == '1'
course_status = CourseStatus.create(:course_id => @course.id, :watchers_count => 0, :changesets_count => 0, :grade => 0, :course_type => @course_tag)
end
@course.members << m
@course.course_infos << course
end
{:course => @course, :img_url => url_to_avatar(@course), :current_user_is_member => current_user.member_of_course?(@course), :current_user_is_teacher => is_course_teacher(current_user, @course)}
end
# 复制课程
def copy_a_course origin_course
ActiveRecord::Base.transaction do
course = Course.new(:name => origin_course.name, :tea_id => User.current.id, :school_id => User.current.user_extensions.school_id, :class_period => origin_course.class_period, :credit => origin_course.credit, :end_date => Date.new() + 6 * 30,
:is_public => 0, :course_list_id => origin_course.course_list_id, :is_copy => origin_course.id)
course.extra = 'course' + DateTime.parse(Time.now.to_s).strftime('%Y-%m-%d_%H-%M-%S').to_s
if course.save
r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
m = Member.new(:user => current_user, :roles => [r])
m.project_id = -1
course.members << m
course.course_infos << CourseInfos.new(:user_id => current_user.id, :course_id => course.id)
# 作业复制
origin_course.homework_commons.where(:homework_type => [1, 3, 4]).each do |homework|
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.homework_bank_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(:te_proportion => 1.0, :ta_proportion => 0, :comment_status => 0, :evaluation_num => 0, :absence_penalty => 0)
new_homework_detail_manual = new_homework.homework_detail_manual
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
attachment.update_attributes(:quotes => attachment.quotes.to_i + 1)
end
if new_homework.homework_type == 3
new_homework.homework_detail_group = HomeworkDetailGroup.new
new_homework_detail_group = new_homework.homework_detail_group
new_homework.homework_detail_group.min_num = homework.homework_detail_group.min_num
new_homework.homework_detail_group.max_num = homework.homework_detail_group.max_num
new_homework.homework_detail_group.base_on_project = homework.homework_detail_group.base_on_project
end
if new_homework.save
if new_homework.homework_type == 4
HomeworkCommonsShixuns.create(:homework_common_id => new_homework.id, :shixun_id => homework.homework_commons_shixuns.shixun_id)
create_shixun_homework_cha_setting new_homework, homework.shixuns.first
end
new_homework_detail_manual.save if new_homework_detail_manual
new_homework_detail_group.save if new_homework_detail_group
homework.update_column(:quotes, homework.quotes.to_i + 1)
if homework.homework_bank
homework.homework_bank.update_column(:quotes, homework.homework_bank.quotes.to_i + 1)
QuestionBank.where(:container_id => homework.homework_bank_id, :container_type => ["Common", "Shixun"]).update_all(:quotes => homework.homework_bank.quotes)
end
end
end
# 试卷复制
origin_course.exercises.each do |exercise|
new_exercise = Exercise.new(:exercise_name => exercise.exercise_name, :exercise_description => exercise.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.exercise_bank_id)
exercise.exercise_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]
}
exercise_question = new_exercise.exercise_questions.new option
for i in 1..q.exercise_choices.count
choice_option = {
:choice_position => i,
:choice_text => q.exercise_choices[i - 1][:choice_text]
}
exercise_question.exercise_choices.new choice_option
end
for i in 1..q.exercise_standard_answers.count
standard_answer_option = {
:exercise_choice_id => q.exercise_standard_answers[i - 1][:exercise_choice_id],
:answer_text => q.exercise_standard_answers[i - 1][:answer_text]
}
exercise_question.exercise_standard_answers.new standard_answer_option
end
end
if new_exercise.save
if exercise.exercise_bank
exercise.exercise_bank.update_column(:quotes, exercise.exercise_bank.quotes.to_i + 1)
QuestionBank.where(:container_id => exercise.exercise_bank_id, :container_type => "Exercise").update_all(:quotes => exercise.exercise_bank.quotes)
end
end
end
# 问卷复制
origin_course.polls.each do |poll|
new_poll = Poll.new(:polls_name => poll.polls_name, :polls_description => poll.polls_description, :user_id => User.current.id, :is_public => 0,
:polls_status => 1, :show_result => 1, :course_id => course.id, :exercise_bank_id => poll.exercise_bank_id)
poll.poll_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.poll_answers.count
choice_option = {
:answer_position => i,
:answer_text => q.poll_answers[i - 1][:answer_text]
}
poll_question.poll_answers.new choice_option
end
end
if new_poll.save
if poll.exercise_bank
poll.exercise_bank.update_column(:quotes, poll.exercise_bank.quotes.to_i + 1)
QuestionBank.where(:container_id => poll.exercise_bank_id, :container_type => "Poll").update_all(:quotes => poll.exercise_bank.quotes)
end
end
end
# 资源复制
origin_course.attachments.each do |attachment|
attach_copied_obj = attachment.copy
attach_copied_obj.tag_list.add(attachment.tag_list) # tag关联
attach_copied_obj.container = course
attach_copied_obj.created_on = Time.now
attach_copied_obj.publish_time = nil
attach_copied_obj.author_id = User.current.id
attach_copied_obj.copy_from = attachment.copy_from.nil? ? attachment.id : attachment.copy_from
attach_copied_obj.is_publish = 0
if attach_copied_obj.attachtype == nil
attach_copied_obj.attachtype = 4
end
attach_copied_obj.save
update_quotes attach_copied_obj
end
end
{:course => course}
end
end
def update_quotes attachment
if attachment.copy_from
attachments = Attachment.find_by_sql("select * from attachments where copy_from = #{attachment.copy_from} or id = #{attachment.copy_from}")
else
attachments = Attachment.find_by_sql("select * from attachments where copy_from = #{attachment.id} or id = #{attachment.copy_from}")
end
attachment.quotes = get_qute_number attachment
attachment.save
attachments.each do |att|
att.quotes = attachment.quotes
att.save
end
end
def get_qute_number attachment
if attachment.copy_from
result = Attachment.find_by_sql("select count(*) as number from attachments where copy_from = #{attachment.copy_from}")
else
result = Attachment.find_by_sql("select count(*) as number from attachments where copy_from = #{attachment.id}")
end
if result.nil? || result.count <= 0
return 0
else
return result[0].number
end
end
#验证编辑课程的权限
#当前
def edit_course_authorize(current_user, course)
unless current_user.allowed_to?({:controller => 'courses', :action => 'update'}, course)
raise '403'
end
end
#编辑课程 需验证权限
# params[:course][:name]:课程名称
#params[:course][:password]:密码
#params[:course][:description]:描述
#params[:course][:is_public]:是否公开1公开0私有
#params[:course][:open_student]:是否公开学生列表1公开0不公开不公开时非课程成员无法看到学生列表
#params[:course][:course_type]:暂时默认给1值。
#params[:term]:学期(秋季学期或春季学期)
#params[:time]: 年份2014
#params[:class_period]:学时总数
#params[:publish_resource] 允许学生上传资源 0 不允许 1 允许
def edit_course(params, course, current_user)
course.send(:safe_attributes=, params[:course], current_user)
#course.safe_attributes = params[:course]
#course.password = params[:course][:password]
course.name = params[:course][:name]
#course.tea_id = current_user.id
#course.syllabus_id = params[:syllabus_id].to_i
#course.time = params[:time]
#course.term = params[:term]
#course.end_time = params[:end_time]
#course.end_term = params[:end_term]
course.class_period = params[:period].to_i if params[:period]
course.credit = params[:credit] if params[:credit]
course.end_date = params[:end_date] if params[:end_date]
course.show_unit = params[:course][:show_unit] ? 1 : 0
if course.is_end && (course.end_date.nil? || course.end_date > Date.today)
course.is_end = 0
Tiding.where(:container_id => course.id, :container_type => "ArchiveCourse").destroy_all
elsif !course.is_end && course.end_date.present? && course.end_date < Date.today
course.is_end = 1
end
params[:course][:is_public] ? course.is_public = 1 : course.is_public = 0
if CourseList.where(:name => params[:course][:course_list].strip).count > 0
course.course_list_id = CourseList.where(:name => params[:course][:course_list].strip).first.id
else
course_list = CourseList.create(:name => params[:course][:course_list].strip, :user_id => User.current.id, :is_admin => 0)
course.course_list_id = course_list.id
end
if course.save
if params[:course][:is_public]
course_status = CourseStatus.find_by_course_id(course.id)
course_status.destroy if course_status
course_status = CourseStatus.create(:course_id => course.id, :grade => 0)
else
course_status = CourseStatus.find_by_course_id(course.id)
course_status.destroy if course_status
end
end
# {:course => course,:img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course)}
{:course => course}
end
#退出课程
#object_id: 课程id
#user当前用户
#@state == 0 退出成功
#@state == 1 不在课程中
#@state == 2 您还未登录
#@state 其他 未知错误,请稍后再试
def exit_course params, user
if user.nil?
@state = 2
return @state
end
@member = Member.where('course_id = ? and user_id = ?', params[:object_id], user.id).first
if @member.nil?
@state = 1
return @state
end
student_role = @member.member_roles.where("role_id = 10").first
teacher_role = @member.member_roles.where("role_id = 7 || role_id = 9").first
ActiveRecord::Base.transaction do
if @member.member_roles.count > 1 && student_role && teacher_role
student_role.destroy
teacher_role.update_attribute("is_current", 1)
@member.update_attribute("course_group_id", 0)
else
@member.destroy
end
joined = StudentsForCourse.where('student_id = ? and course_id = ?', user.id, params[:object_id])
joined.destroy_all
end
@state = 0
@state
end
class JoinCourseError < Errors
define_error [
0, '加入成功',
1, '密码错误',
2, '班级已过期 请联系班级管理员重启班级。',
3, '您已经是该班级的成员了',
4, '您的邀请码不正确',
5, '您还未登录',
6, '您的申请已提交,请等待管理员审批',
7, '您已经发送过申请了,请耐心等待',
8, '您已经是该班级的教师了',
9, '您已经是该班级的教辅了',
10, '您已经是该班级的管理员了',
11, '该班级不存在或已被删除啦',
12, '您已经发送过申请了,请耐心等待',
13, '您的申请已提交,请等待管理员审批',
'未知错误,请稍后再试'
]
end
#加入课程
#object_id课程id
#course_password :加入课程的密码
def join_course params, current_user
course = Course.find_by_invite_code(params[:invite_code]) if params[:invite_code]
@state = 10
if course
if course_endTime_timeout? course
@state = 2
elsif course[:is_delete] == 1
@state = 11
else
if current_user.member_of_course?(course) #如果已经是成员
member = course.members.where("user_id=#{current_user.id} and course_id=#{course.id}")[0]
roleName = member.roles[0].name if member
if params[:invite_code].present?
#如果加入角色为学生 并且当前是学生
if roleName == "Student"
@state = 3
#如果加入的角色为老师,并且当前已经是老师
elsif roleName == "Teacher"
@state = 8
#如果加入的角色教辅并且当前为教辅
elsif roleName == "TeachingAsistant"
@state = 9
elsif roleName == "Manager"
@state = 10
end
else
@state = 1
end
else
if params[:invite_code].present?
members = []
members << Member.new(:role_ids => [10], :user_id => current_user.id)
course.members << members
StudentsForCourse.create(:student_id => current_user.id, :course_id => course.id)
@state = 0
else
@state = 1
end
end
end
else
@state = 4
end
{:state => @state, :course => course}
end
#加入班级结果
# def send_wechat_join_class_notice user,course,role_id,result
# count = ShieldWechatMessage.where("container_type='User' and container_id=#{user.id} and shield_type='Course' and shield_id=#{course.id}").count
# if count == 0
# ws = WechatService.new
#
# role_name = role_id == 7 ? "助教" : role_id == 9 ? "教师" : "学生"
# result_name = result == 0 ? "通过" : "被拒绝"
# content = "您以"+role_name+"身份加入班级的申请已"+result_name+"。"
#
# if result == 0
# title = "恭喜您加入班级成功。"
# remark = "点击查看班级详情。"
# uid = 0
# type = "class"
# else
# title = "很遗憾您未能成功加入班级。"
# remark = "点击查看申请详情。"
# uid = user.id
# type = "review_class_member"
# end
#
# name = course.course_list.nil? ? course.name : course.course_list_name+" • "+course.name
# ws = WechatService.new
# ws.class_notice user.id, type, course.id, title,name, user.show_name, format_time(Time.now), content, remark,uid
#
# end
# end
#多个角色加入课程
def join_course_roles params, current_user
course = Course.find_by_invite_code(params[:invite_code].strip) if params[:invite_code]
unless course
course_group = CourseGroup.find_by_invite_code(params[:invite_code].strip) if params[:invite_code]
course = course_group.course if course_group
end
go_coursegroup_flag = 0
course_id = 0
@state = 10
if course
if course_endTime_timeout? course
@state = 2
elsif course[:is_delete] == 1
@state = 11
elsif course[:invite_code_halt] == 1
@state = 14
else
role_ids = params[:role]
if current_user.member_of_course?(course) #如果已经是成员
member = course.members.where("user_id=#{current_user.id}").first
roleName = member.roles.map{|role| role.name}.join(",") if member
if course_group.present? && roleName.include?("Student")
member.update_attributes(:course_group_id => course_group.id)
end
#如果加入角色为学生 并且当前是学生
if role_ids.include?("10") && role_ids.length == 1 && roleName.include?("Student")
@state = 16
#如果加入的角色为老师,并且当前已经是老师
elsif role_ids.include?("9") && role_ids.length == 1 && roleName.include?("Teacher")
@state = 8
#如果加入的角色教辅并且当前为教辅
elsif role_ids.include?("7") && role_ids.length == 1 && roleName.include?("TeachingAsistant")
@state = 9
elsif roleName == "Manager"
@state = 10
#如果加入角色为教师或者教辅,并且当前是学生
elsif (role_ids.include?("7") || role_ids.include?("9")) && roleName == "Student"
#如果已经发送过消息了,那么就要给个提示
if CourseMessage.where("course_message_type = 'JoinCourseRequest' and user_id = #{course.tea_id} and content = '#{role_ids.include?("9") ? 9 : 7}' and course_message_id = #{User.current.id} and course_id = #{course.id} and status = 0 ").count != 0
@state = 7
else
# Mailer.run.join_course_request(course, User.current, params[:role])
course_message = CourseMessage.create(:user_id => course.tea_id, :course_id => course.id, :viewed => false,:content=> role_ids.include?("9") ? 9 : 7,:course_message_id=>User.current.id,:course_message_type=>'JoinCourseRequest',:status=>0)
if CourseActivity.where(:course_act_type => 'JoinCourse', :user_id => User.current.id, :course_id => course.id, :course_act_id => course_message.id).count == 0
CourseActivity.create(:course_act_type => 'JoinCourse', :user_id => User.current.id, :course_id => course.id, :course_act_id => course_message.id)
end
@state = 6
end
#如果加入角色是学生,但是是当前课程的教师或者教辅
elsif role_ids.include?("10") && !roleName.include?("Student")
member.role_ids = member.role_ids + [10]
member.course_group_id = course_group.try(:id).to_i if course_group.present?
member.save
StudentsForCourse.create(:student_id => current_user.id, :course_id => course.id)
@state = 0
else
@state = 3
end
else
if role_ids.include?("10") && !role_ids.include?("7") && !role_ids.include?("9")
members = []
members << Member.new(:role_ids => [10], :user_id => current_user.id, :course_group_id => course_group.try(:id).to_i)
course.members << members
StudentsForCourse.create(:student_id => current_user.id, :course_id => course.id)
@state = 0
go_coursegroup_flag = 1 if course.course_groups
course_id = course.id
# send_wechat_join_class_notice current_user,course,10,0
else
is_stu = false
if role_ids.include?("10")
members = []
members << Member.new(:role_ids => [10], :user_id => current_user.id, :course_group_id => course_group.try(:id).to_i)
course.members << members
StudentsForCourse.create(:student_id => current_user.id, :course_id => course.id)
is_stu = true
go_coursegroup_flag = 1 if course.course_groups
course_id = course.id
# send_wechat_join_class_notice current_user,course,10,0
end
#如果已经发送过消息了,那么就要给个提示
if CourseMessage.where("course_message_type = 'JoinCourseRequest' and user_id = #{course.tea_id} and content = '#{role_ids.include?("7") ? 7 : 9}' and course_message_id = #{current_user.id} and course_id = #{course.id} and status = 0").count != 0
course_message = CourseMessage.where("course_message_type = 'JoinCourseRequest' and user_id = #{course.tea_id} and content = '#{role_ids.include?("7") ? 7 : 9}' and course_message_id = #{current_user.id} and course_id = #{course.id} and status = 0").first
if is_stu
@state = 12
else
@state = 7
end
else
# Mailer.run.join_course_request(course, current_user, params[:role])
course_message = CourseMessage.create(:user_id => course.tea_id, :course_id => course.id, :viewed => false, :content => role_ids.include?("7") ? 7 : 9, :course_message_id => current_user.id, :course_message_type => 'JoinCourseRequest', :status => 0)
#----------------微信通知----------------------
# if role_ids.include?("7") || role_ids.include?("9")
# tea_user = User.find(course.tea_id)
# count = ShieldWechatMessage.where("container_type='User' and container_id=#{tea_user.id} and shield_type='Course' and shield_id=#{course.id}").count
# if count == 0
#
# rolename = role_ids.include?("7") ? "助教" : "教师"
# content = current_user.show_name + "申请以"+rolename+"身份加入班级,等待您的审批。"
# name = course.course_list.nil? ? course.name : course.course_list_name+" • "+course.name
# ws = WechatService.new
# ws.class_notice tea_user.id, "review_class_member", course.id, "班级成员审批通知。", name, tea_user.show_name, format_time(Time.now), content, "点击查看申请详情。",current_user.id
# end
# end
#--------------------------------------------
if is_stu
@state = 13
else
@state = 6
end
end
# 创建动态
if role_ids.include?("7") || role_ids.include?("9")
if CourseActivity.where(:course_act_type => 'JoinCourse', :user_id => User.current.id, :course_id => course.id, :course_act_id => course_message.id).count == 0
CourseActivity.create(:course_act_type => 'JoinCourse', :user_id => User.current.id, :course_id => course.id, :course_act_id => course_message.id)
end
end
end
end
end
else
@state = 4
end
{:state => @state, :course => course, :go_coursegroup_flag => go_coursegroup_flag, :course_id => course_id}
end
#作业列表
#已提交的作业数量获取 bid.homeworks.count
#学生提问数量获取 bid.commit.nil? ? 0 : bid.commit
def homework_list params, current_user
course = Course.find(params[:id])
if course.is_public != 0 || current_user.member_of_course?(course)
bids = course.homework_commons.where("publish_time <= ?", Time.now).page(params[:page] || 1).per(20).reorder('created_at DESC')
bids = bids.like(params[:name]) if params[:name].present?
homeworks = []
bids.each do |bid|
homeworks << show_homework_info(course, bid, current_user, is_course_teacher(current_user, course))
end
homeworks
else
raise '403'
end
end
def course_dynamic(params, current_user)
@user = User.find(params[:id])
if current_user.nil? && !current_user.admin? && !@user.active?
raise '404'
return
end
if current_user == @user || current_user.admin?
membership = @user.coursememberships.all
else
membership = @user.coursememberships.all(:conditions => Course.visible_condition(current_user))
end
if membership.nil? || membership.count == 0
raise l(:label_no_courses, :locale => get_user_language(current_user))
end
membership.sort! {|older, newer| newer.created_on <=> older.created_on}
result = []
membership.each do |mp|
course = mp.course
latest_course_dynamics = []
latest_news = course.news.order("created_on desc").first
unless latest_news.nil?
latest_course_dynamics << {:type => 1, :time => latest_news.created_on,
:message => latest_news.author.realname << l(:label_recently_updated_notification, :locale => get_user_language(current_user)) << "" << latest_news.title}
end
latest_message = course.journals_for_messages.order("created_on desc").first
unless latest_message.nil?
latest_course_dynamics << {:type => 2, :time => latest_message.created_on, :message => latest_message.user.realname << l(:label_recently_updated_message, :locale => get_user_language(current_user)) << "" << latest_message.notes}
end
latest_attachment = course.attachments.order("created_on desc").first
unless latest_attachment.nil?
latest_course_dynamics << {:type => 3, :time => latest_attachment.created_on, :message => latest_attachment.author.realname << l(:label_recently_updated_courseware, :locale => get_user_language(current_user)) << "" << latest_attachment.filename}
end
latest_bid = course.homework_commons.order('updated_at DESC').first
unless latest_bid.nil?
latest_course_dynamics << {:type => 4, :time => latest_bid.updated_at, :message => latest_bid.user.realname << l(:label_recently_updated_homework, :locale => get_user_language(current_user)) << "" << latest_bid.name}
end
# Time 2015-04-07 14:58:30
# Author lizanle
# Description 添加课程创建动态
if (User.find_by_id(CourseInfos.find_by_course_id(course.id).try(:user_id)))
create_user_name = User.find_by_id(CourseInfos.find_by_course_id(course.id).user_id).realname
latest_course_dynamics << {:type => 5, :time => course.created_at, :message => l(:label_recently, :locale => get_user_language(current_user)) << create_user_name << l(:label_creat, :locale => get_user_language(current_user))}
end
#每个作业中的最新留言
# messages = []
# course.homework_commons.each do |hc|
# jour = hc.journals_for_messages.order("created_on desc").first
# unless jour.nil?
# messages << jour
# end
# end
# unless messages.count == 0
# messages.sort!{|order,newer| newer.created_on <=> order.created_on}
# end
# latest_bid_message = messages.first
# unless latest_bid_message.nil?
# latest_course_dynamics << {:type => 4,:time => latest_bid_message.created_on,:message => l(:label_recently_updated_message,:locale => get_user_language(current_user))}
# end
#每个作业中学生最后提交的作业
homeworks = []
course.homework_commons.each do |bid|
homework_attach = bid.student_works.order('updated_at DESC').first
unless homework_attach.nil?
homeworks << homework_attach
end
end
unless homeworks.count == 0
homeworks.sort! {|order, newer| newer.updated_at <=> order.updated_at}
end
latest_homework_attach = homeworks.first
unless latest_homework_attach.nil?
latest_course_dynamics << {:type => 4, :time => latest_homework_attach.updated_at, :message => latest_homework_attach.user.realname << l(:label_recently_updated_homework, :locale => get_user_language(current_user)) << "" << (latest_homework_attach.name.nil? ? latest_homework_attach.description : latest_homework_attach.name)}
end
latest_course_dynamics.sort! {|order, newer| newer[:time] <=> order[:time]}
latest_course_dynamic = latest_course_dynamics.first
unless latest_course_dynamic.nil?
result << {:course_name => course.name, :course_id => course.id, :course_img_url => url_to_avatar(course), :course_time => course.time, :course_term => course.term, :type => latest_course_dynamic[:type], :update_time => latest_course_dynamic[:time], :message => latest_course_dynamic[:message], :count => nil}
end
end
result.sort! {|order, newer| newer[:update_time] <=> order[:update_time]}
result
end
# 课程课件
def course_attachments params
result = []
course = Course.find(params[:course_id])
attachments = course.attachments.where("is_publish = 1").reorder("created_on desc")
if !params[:name].nil? && params[:name] != ""
attachments.each do |atta|
result << atta if atta.filename.include?(params[:name])
end
else
result = attachments
end
result
end
# 课程学生列表
def course_members params
@all_members = searchmember_by_name(student_homework_score(0, params[:course_id], 10, "desc"), params[:name])
end
def show_member_score params
@member_score = Member.find(params[:member_id]) if params[:member_id]
atta = @member_score.student_homework_score[0]
result = []
atta.each do |t|
if !params[:homeworkName].nil? && params[:homeworkName] != ""
result << {:name => t[:name], :score => t[:score]} if t[:name].include?(params[:homeworkName])
else
result << {:name => t[:name], :score => t[:score]}
end
end
result
end
# 设置人员为课程教辅
def set_as_assitant_teacher params
members = []
#找到课程
course = Course.find(params[:course_id])
#新建课程人员
member = Member.new(:role_ids => [7], :user_id => params[:user_id], :course_id => params[:course_id])
joined = StudentsForCourse.where('student_id = ? and course_id = ?', member.user_id, course.id)
joined.each do |join|
join.destroy
end
member.course_group_id = 0
members << member
course.members << members
#将课程人员设置为教辅
end
def del_assitant_teacher params
member = Member.where("user_id = ? and course_id = ?", params[:user_id], params[:course_id])
member.each do |m|
m.destroy
end
user_admin = CourseInfos.where("user_id = ? and course_id = ?", params[:user_id], params[:course_id])
if user_admin.size > 0
user_admin.each do |user|
user.destroy
end
end
joined = StudentsForCourse.where('student_id = ? and course_id = ?', params[:user_id], params[:course_id])
joined.each do |join|
join.destroy
end
end
def create_course_notice params, current_user
n = News.new(:course_id => params[:course_id], :author_id => current_user.id, :title => params[:title], :description => params[:desc])
n.save
{:id => n.id, :title => n.title, :author_name => n.author.name, :author_id => n.author.id, :description => n.description, :created_on => format_time(n.created_on), :comments_count => n.comments_count}
end
private
def searchmember_by_name members, name
#searchPeopleByRoles(project, StudentRoles)
mems = []
if name != ""
name = name.to_s.downcase
members.each do |m|
username = m.user[:lastname].to_s.downcase + m.user[:firstname].to_s.downcase
if (m.user[:login].to_s.downcase.include?(name) || m.user.user_extensions[:student_id].to_s.downcase.include?(name) || username.include?(name))
mems << m
end
end
else
mems = members
end
mems
end
def show_homework_info course, bid, current_user, is_course_teacher
author_real_name = bid.user.lastname + bid.user.firstname
many_times = course.homework_commons.index(bid) + 1
name = bid.name
homework_count = bid.student_works.count #已提交的作业数量
#student_questions_count = bid.journals_for_messages.where('m_parent_id IS NULL').count
description = bid.description
#if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
#state = bid.homework_detail_manual.comment_status
state = get_homework_state(bid)
# studentlist = []
# bid.student_works.order("created_at desc").page(1).per(6).each do |work|
# studentlist << work.user
# end
# unless is_course_teacher
# homework_for_anonymous_comments = get_student_batch_homework_list bid,current_user
# end
#end
open_anonymous_evaluation = bid.homework_detail_manual.comment_status
{:course_name => course.name,
:course_id => course.id,
:id => bid.id,
:author => bid.user,
:author_real_name => author_real_name,
:homework_times => many_times,
:homework_name => name,
:homework_count => homework_count,
:student_questions_count => 0,
:description => description,
:homework_state => state,
:open_anonymous_evaluation => open_anonymous_evaluation,
#:homework_for_anonymous_comments => homework_for_anonymous_comments,
:created_on => bid.created_at,
:deadline => bid.end_time,
:homework_notsubmit_num => bid.student_works.count - bid.student_works.all_commit.count,
:homework_submit_num => bid.student_works.all_commit.count,
:homework_status_student => get_homework_status(bid),
:homework_status_teacher => homework_status_desc(bid),
:student_evaluation_part => get_evaluation_part(bid, 3),
:ta_evaluation_part => get_evaluation_part(bid, 2),
:homework_anony_type => bid.homework_type == 1 && !bid.homework_detail_manual.nil?,
:current_user_is_teacher => is_course_teacher,
##学生提交作业的状态 0 未提交 1 已提交
:status => bid.student_works.where(user_id: current_user).first.try(:work_status).to_i,
:homework_type => bid.homework_type
}
end
#显示作业列表的同时显示分配给当前学生匿评的作业
def show_homework_info_with_batch course, bid
author = bid.author.lastname + bid.author.firstname
many_times = course.homeworks.index(bid) + 1
name = bid.name
homework_count = bid.homeworks.count #已提交的作业数量
student_questions_count = bid.journals_for_messages.where('m_parent_id IS NULL').count
description = bid.description
#if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
state = bid.comment_status
#end
open_anonymous_evaluation = bid.open_anonymous_evaluation
{:course_name => course.name, :id => bid.id, :course_teacher => author, :homework_times => many_times, :homework_name => name, :homework_count => homework_count, :student_questions_count => student_questions_count,
:description => description, :homework_state => state, :open_anonymous_evaluation => open_anonymous_evaluation}
end
def student_homework_score(groupid, course_id, nums, score_sort_by, sort_type = 'score')
sql_select = ""
if groupid == 0
sql_select = "SELECT members.*,(
SELECT SUM(student_works.work_score)
FROM student_works,homework_commons
WHERE student_works.homework_common_id = homework_commons.id
AND homework_commons.course_id = course_id
AND student_works.user_id = members.user_id
) AS score,(SELECT (message_num*2 + message_reply_num*1 + news_reply_num*1 + news_num*1 +
resource_num*5 + journal_num*1 + homework_journal_num*1 ) FROM `course_contributor_scores` AS ccs WHERE ccs.course_id = #{course_id} AND ccs.user_id = members.user_id
) AS act_score
FROM members
JOIN students_for_courses
ON students_for_courses.student_id = members.user_id AND students_for_courses.course_id = members.course_id
WHERE members.course_id = #{course_id} ORDER BY #{sort_type} #{score_sort_by}"
else
sql_select = "SELECT members.*,(
SELECT SUM(student_works.work_score)
FROM student_works,homework_commons
WHERE student_works.homework_common_id = homework_commons.id
AND homework_commons.course_id = #{course_id}
AND student_works.user_id = members.user_id
) AS score,(SELECT (message_num*2 + message_reply_num*1 + news_reply_num*1 + news_num*1 +
resource_num*5 + journal_num*1 + homework_journal_num*1 ) FROM `course_contributor_scores` AS ccs WHERE ccs.course_id = #{course_id} AND ccs.user_id = members.user_id
) AS act_score
FROM members
JOIN students_for_courses
ON students_for_courses.student_id = members.user_id AND students_for_courses.course_id = members.course_id
WHERE members.course_id = #{course_id} AND members.course_group_id = #{groupid} ORDER BY #{sort_type} #{score_sort_by}"
end
sql = ActiveRecord::Base.connection()
homework_scores = Member.find_by_sql(sql_select)
sql.close()
homework_scores
end
#app新版api
#
#
#课程动态
public
def all_course_dynamics params, current_user
#获取当前用户的所有课程
@user = User.find(params[:id])
if current_user.nil? && !current_user.admin? && !@user.active?
raise '404'
return
end
if current_user == @user || current_user.admin?
membership = @user.coursememberships
else
membership = @user.coursememberships.all(:conditions => Course.visible_condition(current_user))
end
if membership.nil? || membership.count == 0
raise l(:label_no_courses, :locale => get_user_language(current_user))
end
#membership.sort! { |older, newer| newer.created_on <=> older.created_on }
#定义一个数组集合存放hash数组该hash数组包括课程的信息并包含课程的最新发布的资源最新的讨论区留言最新的作业最新的通知
result = []
#对用户所有的课程进行循环,找到每个课程最新发布的资源,最新的讨论区留言,最新的作业,最新的通知,并存进数组
membership.each do |mp|
course = mp.course
latest_course_dynamics = []
notices_count = 0
topic_count = 0
topics = nil
homeworkss = nil
notices = nil
# 课程通知
latest_news = course.news.page(1).per(2).order("created_on desc")
unless latest_news.first.nil?
notices_count = course.news.count
notices = latest_news.all
latest_course_dynamics << {:time => latest_news.first.created_on}
end
# 课程讨论区
latest_message = course.boards.first.topics.page(1).per(2)
unless latest_message.first.nil?
topic_count = course.boards.nil? ? 0 : course.boards.first.topics.count
topics = latest_message.all
latest_course_dynamics << {:time => latest_message.first.created_on}
end
# 课程资源
# latest_attachment = course.attachments.order("created_on desc").page(1).per(2)
# unless latest_attachment.first.nil?
# latest_course_dynamics << {:type => 3, :time => latest_attachment.first.created_on,:count =>course.attachments.count , :documents=>latest_attachment}
# dynamics_count += 1
# end
#课程作业 已经交的学生列表暂定显示6人未交的学生列表作业的状态
homeworks = course.homework_commons.page(1).per(2).order('created_at desc')
unless homeworks.first.nil?
homeworkss = homeworks
latest_course_dynamics << {:time => homeworks.first.updated_at}
end
latest_course_dynamics.sort! {|order, newer| newer[:time] <=> order[:time]}
# 课程学霸 学生总分数排名靠前的5个人
homework_count = course.homework_commons.count
sql = "select users.*,ROUND(sum(student_works.final_score),2) score from student_works left outer join users on student_works.user_id = users.id" <<
" where homework_common_id in ( select id from homework_commons where homework_commons.course_id = #{course.id}) GROUP BY student_works.user_id ORDER BY score desc limit 0,4"
better_students = User.find_by_sql(sql)
# 找出在课程讨论区发帖回帖数最多的
active_students = []
sql1 = " select users.*,count(author_id)*2 active_count from messages " <<
" LEFT JOIN users on messages.author_id = users.id " <<
" where messages.board_id in (select id from boards where boards.course_id = #{course.id} ) " <<
" GROUP BY messages.author_id ORDER BY count(author_id) desc " <<
" limit 0,4"
active_students = User.find_by_sql(sql1)
if homework_count != 0 && !better_students.empty?
latest_course_dynamics << {:time => "1970-01-01 0:0:0 +0800"}
end
unless active_students.empty?
latest_course_dynamics << {:time => "1970-01-01 0:0:0 +0800"}
end
latest_course_dynamic = latest_course_dynamics.first
unless latest_course_dynamic.nil?
result << {:course_name => course.name,
:current_user_is_member => current_user.member_of_course?(course),
:current_user_is_teacher => is_course_teacher(current_user, course),
:course_id => course.id,
:course_img_url => url_to_avatar(course),
:course_time => course.time,
:course_term => course.term,
:news_count => notices_count,
:homework_count => homework_count,
:topic_count => topic_count,
:news => notices,
:homeworks => homeworkss,
:topics => topics,
:better_students => better_students,
:active_students => active_students,
:message => "",
:course_student_num => course ? course.members.count : 0,
#:time_from_now=> distance_of_time_in_words(Time.now, latest_course_dynamic[:time].to_time) << "前",
:time_from_now => time_from_now(latest_course_dynamic[:time].to_time), #.strftime('%Y-%m-%d %H:%M:%S').to_s,
:time => latest_course_dynamic[:time].to_time}
end
end
#返回数组集合
result.sort! {|order, newer| newer[:time] <=> order[:time]}
result
end
# 获取课程历次作业的学生总成绩
def students_score_list params, current_user
page = (params[:page] || 1) - 1
user_list = []
max_size = 0
if params[:type] == 1
sql = "select users.*,ROUND(sum(student_works.final_score),2) score from student_works left outer join users on student_works.user_id = users.id" <<
" where homework_common_id in ( select id from homework_commons where homework_commons.course_id = #{params[:course_id]}) GROUP BY student_works.user_id ORDER BY score desc limit #{page * 10},10"
sql_count = " select count(distinct(student_works.user_id) ) " <<
" from student_works left outer join users on student_works.user_id = users.id " <<
" where homework_common_id in " <<
" ( select id from homework_commons where homework_commons.course_id = #{params[:course_id]}) "
max_size = ActiveRecord::Base.connection().select_value(sql_count)
user_list = User.find_by_sql(sql)
else
sql1 = " select users.*,count(author_id)*2 active_count from messages " <<
" LEFT JOIN users on messages.author_id = users.id " <<
" where messages.board_id in (select id from boards where boards.course_id = #{params[:course_id]} ) " <<
" GROUP BY messages.author_id ORDER BY count(author_id) desc " <<
" limit #{page * 10},10"
sql1_count = " select count(DISTINCT(messages.author_id))" <<
" from messages LEFT JOIN users on messages.author_id = users.id " <<
" where messages.board_id in (select id from boards where boards.course_id = #{params[:course_id]} )"
max_size = ActiveRecord::Base.connection().select_value(sql1_count)
user_list = User.find_by_sql(sql1)
end
{:user_list => user_list, :max_size => max_size}
end
# 获取某次作业的所有作业列表
def student_work_list params, current_user
is_teacher = current_user.allowed_to?(:as_teacher, Course.find(params[:course_id]))
homework = HomeworkCommon.find(params[:homework_id])
student_works = []
#老师 || 非匿评作业 || 匿评结束 显示所有的作品
show_all = is_teacher || homework.homework_type != 1 || homework.homework_detail_manual.comment_status == 3
if show_all
if homework.homework_type == 1 || is_teacher || current_user.admin?
student_works = homework.student_works.page(params[:page] || 1).per(10).order("final_score desc ")
else
my_work = homework.student_works.where(:user_id => current_user.id)
if my_work.empty?
student_works = []
else
student_works = homework.student_works.page(params[:page] || 1).per(10).order("final_score desc")
end
end
else #学生
if homework.homework_detail_manual.comment_status == 1 #未开启匿评,只显示我的作品
student_works = homework.student_works.where(:user_id => current_user.id).page(params[:page] || 1).per(10)
elsif homework.homework_detail_manual.comment_status == 2 #匿评列表,显示匿评作品和我的作品
#is_evaluation = true
my_work = homework.student_works.where(:user_id => current_user.id).page(params[:page] || 1).per(10)
student_works = my_work + current_user.student_works_evaluation_distributions.map(&:student_work).select {|work| work.homework_common_id == homework.id}
end
end
student_works
end
# 获取课程的讨论区信息
def board_message_list params, current_user
# 课程讨论区
course = Course.find(params[:course_id])
latest_message = course.boards.first.topics.page(params[:page] || 1).per(10)
end
#获取回复列表
def board_message_reply_list params, current_user
board = Board.find(params[:board_id])
reply_list = board.topics.where("id = #{params[:msg_id]}").first.children.order("created_on desc").page(params[:page] || 1).per(10)
end
def board_all_messages params, user
topics = Board.find(params[:board_id]).topics.page(params[:page]).page(params[:page] || 1).per(10)
return nil unless topics.present?
#取子评论
comments = []
topics.each do |topic|
comments << {topic: topic, comments: Message.where(root_id: topic.id)}
end
comments
end
def topic_all_messages params, user
topic = Message.find(params[:topic_id])
{topic: topic, comments: Message.where(root_id: topic.id)}
end
#回复讨论区
def board_message_reply params, current_user
reply = Message.new
reply.author_id = current_user.id
reply.board_id = params[:board_id]
reply.subject = params[:title]
reply.content = params[:content] #本回复内容
reply.parent_id = params[:reply_id] # 父id
reply.reply_id = params[:reply_id] #根id
reply.root_id = params[:root_id]
unless reply.subject.present?
reply.subject = params[:content]
end
if reply.parent_id.nil? || reply.parent_id == 0
reply.parent_id = params[:root_id]
end
if reply.board_id == 0 #回帖时可以不传board_id
parent_msg = Message.find(reply.parent_id)
reply.board_id = parent_msg.board_id
end
reply.save!
reply
end
# # 开启匿评
# #statue 1:启动成功2启动失败作业总数大于等于2份时才能启动匿评3:已开启匿评,请务重复开启,4:没有开启匿评的权限
# def start_anonymous_comment params,current_user
# homework = HomeworkCommon.find(params[:homework_id])
# return {:status=>4} unless current_user.admin? || current_user.allowed_to?(:as_teacher,Course.find(params[:course_id]))
# return {:status=>5} if Time.parse(homework.end_time.to_s).strftime("%Y-%m-%d") >= Time.now.strftime("%Y-%m-%d")
# homework_detail_manual = homework.homework_detail_manual
# if homework_detail_manual.comment_status == 1
# student_works = homework.student_works
# if student_works && student_works.size >=2
# student_works.each_with_index do |work, index|
# user = work.user
# n = homework_detail_manual.evaluation_num
# n = n < student_works.size ? n : student_works.size - 1
# assigned_homeworks = get_assigned_homeworks(student_works, n, index)
# assigned_homeworks.each do |h|
# student_works_evaluation_distributions = StudentWorksEvaluationDistribution.new(user_id: user.id, student_work_id: h.id)
# student_works_evaluation_distributions.save
# end
# end
# homework_detail_manual.update_column('comment_status', 2)
# statue = 1
# else
# statue = 2
# end
# else
# statue = 3
# end
# {:status => statue}
# end
#
# def get_assigned_homeworks(student_works, n, index)
# student_works += student_works
# student_works[index + 1 .. index + n]
# end
#修改班级成员角色
def modify_user_course_role params, roles_id
status = -1
c = Course.find("#{params[:id]}")
# member = c.member_principals.includes(:roles, :principal).where("user_id=?",params[:user_id]).first
member = c.members.where("user_id=?", params[:user_id]).first
if member
member.role_ids = roles_id
role = Role.find(roles_id[0])
# 这里的判断只能通过角色名,可以弄成常量
if roles_id && roles_id.include?(10)
StudentsForCourse.create(:student_id => params[:user_id], :course_id => params[:id])
else
joined = StudentsForCourse.where('student_id = ? and course_id = ?', params[:user_id], params[:id])
joined.each do |join|
join.destroy
end
member.course_group_id = 0
end
if role.allowed_to?(:is_manager)
courseInfo = CourseInfos.new(:user_id => params[:user_id], :course_id => params[:id])
courseInfo.save
else
user_admin = CourseInfos.where("user_id = ? and course_id = ?", params[:user_id], params[:id])
if user_admin.size > 0
user_admin.each do |user|
user.destroy
end
end
end
Role.givable.all[3..5]
if member.save
status = 0
end
end
status
end
#删除班级成员
def delete_course_member course, user_id, current_user
if current_user.nil?
state = -1
return state
end
member = course.members.where("user_id=?", user_id).first
if member != nil
member.destroy
user_admin = CourseInfos.where("user_id = ? and course_id = ?", member.user_id, course.id)
if user_admin.size > 0
user_admin.each do |user|
user.destroy
end
end
joined = StudentsForCourse.where('student_id = ? and course_id = ?', member.user_id, course.id)
joined.each do |join|
join.destroy
end
roles = Role.givable.all[3..5]
#移出课程发送消息
CourseMessage.create(:user_id => member.user_id, :course_id => course.id, :course_message_type => "RemoveFromCourse", :viewed => false, :course_message_id => current_user.id)
return 0
else
return 1
end
end
end