#encoding utf-8
class PollController < ApplicationController
before_filter :find_poll_and_course, :only => [:edit,:update,:destroy,:show,:statistics_result,:create_poll_question,:commit_poll,:commit_answer,:publish_poll,:publish_notice,:end_notice,:cancel_publish,:poll_result,
:close_poll,:export_poll,:save_poll,:update_question_num, :student_poll_list, :poll_setting, :set_public, :add_to_exercise_bank]
before_filter :find_container, :only => [:new,:create, :index]
# before_filter :is_logged, :only => [:index, :show, :poll_result,:new,:create,:edit,:update,:destroy,:publish_poll,:cancel_publish,:publish_notice,:close_poll,:export_poll,:commit_answer,:commit_poll,:statistics_result,:save_poll,:set_public]
before_filter :is_member_of_course, :only => [:show,:poll_result]
before_filter :is_course_teacher, :only => [:new,:create,:edit,:update,:destroy,:publish_poll,:cancel_publish,:publish_notice,:close_poll,:export_poll,:save_poll,:set_public]
before_filter :require_login, :only => [:student_poll_list, :show]
include PollHelper
include ApplicationHelper
def index
if @course.is_public == 0 && !(User.current.member_of_course?(@course)||User.current.admin?)
render_403
return
end
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
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) # 课堂成员显示为发布的和已发布的
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 # 已分班的成员
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(",") + ")" # 已分班，但是成员不再
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
if params[:type]
@type = params[:type]
polls = polls.where(:polls_status => params[:type])
end
@search = params[:search] ? params[:search].to_s.strip : ""
if params[:search]
polls = polls.where("polls_name like '%#{@search}%'")
end
@polls = paginateHelper polls, 15 #分页
@left_nav_type = 6
respond_to do |format|
format.js
format.html{render :layout => 'base_courses'}
end
end
def show
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
=begin
if @poll.polls_status != 2 && !(User.current.allowed_to?(:as_teacher,@course) || User.current.admin?)
render_403
return
end
=end
unless @is_teacher
@user = User.current
@poll_user = PollUser.where("user_id=? and poll_id=?", User.current.id, @poll.id).first
if @poll_user.nil?
@poll_user = PollUser.create(:user_id => User.current.id, :poll_id => @poll.id, :start_at => Time.now, :commit_status => 0)
elsif @poll_user.start_at.nil?
@poll_user.update_attributes(:start_at => Time.now)
end
@can_edit_poll = can_edit_poll @poll, @poll_user
@percent = get_percent(@poll,User.current)
if !@can_edit_poll && @poll_user.commit_status == 0
@poll_user.update_attributes(:end_at => @poll.end_time, :commit_status => 1)
end
else
@user = User.find params[:user_id]
@poll_user = PollUser.where("user_id=? and poll_id=?", params[:user_id], @poll.id).first
@can_edit_poll = false
end
respond_to do |format|
format.html {render :layout => 'base_edu'}
end
end
def new
@poll = Poll.new
respond_to do |format|
format.html{render :layout => 'base_edu'}
end
end
def create
if params[:poll]
poll = Poll.new(:polls_name => params[:poll][:polls_name], :polls_description => params[:poll][:polls_description], :user_id => User.current.id, :polls_type => 'Course',
:course_id => params[:course_id], :show_result => 1, :polls_status => 1)
if poll.save
create_polls_list poll
@poll = poll
respond_to do |format|
format.js
end
end
end
end
def edit
respond_to do |format|
format.html{render :layout => 'base_edu'}
end
end
def update
@poll.polls_name = params[:poll][:polls_name]
@poll.polls_description = params[:poll][:polls_description]
if @poll.save
respond_to do |format|
format.js
end
else
render_404
end
end
def destroy
if @poll && @poll.destroy
redirect_to poll_index_url(:course_id => @course.id)
end
end
def student_poll_list
@order,@b_sort,@name,@group,@status = params[:order] || "end_at",params[:sort] || "desc",params[:name].to_s.strip || "", params[:poll_group], params[:poll_status]
@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
@member = @course.members.where(:user_id => User.current.id).first
# 判断学生是否有权限查看(问卷未发布、问卷已发布但不是统一设置的未分班学生、分班设置的问卷未发布)
if User.current.member_of_course?(@course) && !@is_teacher
if @poll.publish_time.nil? || @poll.publish_time > Time.now || (!@poll.unified_setting && (@member.course_group_id == 0 ||
@poll.poll_group_settings.where("course_group_id = #{@member.try(:course_group_id)} and (publish_time > '#{Time.now}' or publish_time is null)").count > 0))
render_403
return
end
end
student_id = @course.student.blank? ? "(-1)" : "(" + @course.student.map{|student| student.student_id}.join(",") + ")"
if @poll.polls_status < 2
@poll_users_list = @poll.poll_users.where("0=1")
elsif @poll.unified_setting
@poll_users_list = @poll.poll_users
else
user_ids = @course.members.where(:course_group_id => @poll.poll_group_settings.where("publish_time < '#{Time.now}'").pluck(:course_group_id)).map(&:user_id)
@poll_users_list = @poll.poll_users.where(:user_id => user_ids)
end
@group_teacher = @is_teacher && @member.present? && @member.teacher_course_groups.count > 0
if @group || @group_teacher
group_ids = @group || @member.teacher_course_groups.pluck(:course_group_id)
group_students = @course.members.where(:course_group_id => group_ids).joins("join users on members.user_id = users.id").select{|m| m.roles.to_s.include?("Student")}
if group_students.empty?
student_in_group = '(-1)'
else
student_in_group = '(' + group_students.map{ |member| member.user_id }.join(',') + ')'
end
@poll_users_list = @poll_users_list.where("poll_users.user_id in #{student_in_group}")
else
@poll_users_list = @poll_users_list.where("poll_users.user_id in #{student_id}")
end
if @poll_users_list.size != 0
if @order == "student_id"
@poll_users_list = @poll_users_list.includes(:user => {:user_extensions => []}).order("user_extensions.student_id #{@b_sort}")
else
@poll_users_list = @poll_users_list.includes(:user => {:user_extensions => []}).order("#{@order} #{@b_sort}")
end
end
unless @status.blank?
@poll_users_list = @poll_users_list.where(:commit_status => @status)
end
@poll_users_list = search_work_member @poll_users_list, @name
@tab = params[:tab].nil? ? 1 : params[:tab].to_i
@score = @b_sort == "desc" ? "asc" : "desc"
@poll_count = @poll_users_list.count
@is_new = params[:is_new] ? true : false
@has_commit_count = @poll.poll_users.where(:commit_status => 1).count
@no_group_count = @course.members.where(:course_group_id => 0).select{|m| m.roles.to_s.include?("Student")}.count
@limit = 50
@page = (params['page'] || 1).to_i
@poll_users_list = paginateHelper @poll_users_list, @limit
respond_to do |format|
format.js
format.html{render :layout => 'base_edu'}
end
end
def statistics_result
poll_questions = @poll.poll_questions
member = @course.members.where(:user_id => User.current.id).first
if member.present? && member.teacher_course_groups.count > 0
group_ids = member.teacher_course_groups.pluck(:course_group_id)
group_students = @course.members.where(:course_group_id => group_ids).joins("join users on members.user_id = users.id").select{|m| m.roles.to_s.include?("Student")}
@user_ids = @poll.poll_users.where(:commit_status => 1, :user_id => group_students.map(&:user_id)).map(&:user_id)
else
@user_ids = @poll.poll_users.where(:commit_status => 1).map(&:user_id)
end
@poll_questions = paginateHelper poll_questions, 10
respond_to do |format|
format.js
end
end
def poll_setting
if @poll.polls_status == 1 && @course.course_groups.count > 1
@poll.unified_setting = params[:unified_setting] ? true :false
end
if @poll.unified_setting
params_publish_time = params[:poll_publish_time]
params_end_time = params[:poll_end_time]
min_publish_time = params_publish_time
max_end_time = params_end_time
else
# 获取最小发布时间和最大截止时间，赋值给homework
params_publish_time = params[:poll_publish_time_group]
params_end_time = params[:poll_end_time_group]
min_publish_time = @poll.publish_time ? (format_time @poll.publish_time).to_s : ""
max_end_time = @poll.end_time ? (format_time @poll.end_time).to_s : ""
if params[:poll_end_time_group]
max_end_time = ""
params[:poll_end_time_group].each_with_index do |end_time, index|
if end_time != ""
if max_end_time == ""
max_end_time = end_time
end
if end_time > max_end_time
max_end_time = end_time
end
end
end
end
if params[:poll_publish_time_group]
params[:poll_publish_time_group].each_with_index do |publish_time, index|
if publish_time != ""
if min_publish_time == ""
min_publish_time = publish_time
end
if publish_time < min_publish_time
min_publish_time = publish_time
end
end
end
end
end
if params_publish_time && min_publish_time != ""
@poll.publish_time = min_publish_time
@poll.end_time = max_end_time
if @poll.publish_time < Time.now and @poll.polls_status == 1
@poll.polls_status = 2
create_poll_user = 1
if @poll.course_acts.size == 0
@poll.course_acts << CourseActivity.new(:user_id => @poll.user_id,:course_id => @poll.course_id)
end
end
elsif params_publish_time && min_publish_time == ""
create_poll_user = 1
@poll.polls_status = 2
@poll.publish_time = Time.now
@poll.end_time = Time.at(((1.month.since.to_i)/3600.0).ceil * 3600)
if @poll.course_acts.size == 0
@poll.course_acts << CourseActivity.new(:user_id => @poll.user_id,:course_id => @poll.course_id)
end
else
@poll.end_time = max_end_time if params_end_time
end
# 不统一设置且分班数大于一则更新分组设置
if !@poll.unified_setting && @course.course_groups.count > 1
@course.course_groups.each_with_index do |group, index|
poll_group_setting = @poll.poll_group_settings.where(:course_group_id => group.id).first
unless poll_group_setting
poll_group_setting = PollGroupSetting.create(:poll_id => @poll.id, :course_group_id => group.id, :course_id => @course.id)
end
end
group_id = []
@poll.poll_group_settings.where("publish_time is null or publish_time > '#{Time.now}'").joins(:course_group).reorder("CONVERT(course_groups.name USING gbk) COLLATE gbk_chinese_ci ASC").each_with_index do |setting, index|
if params[:poll_publish_time_group] && min_publish_time != ""
if params[:poll_publish_time_group][index] && params[:poll_publish_time_group][index] != ""
setting.update_column(:publish_time, params[:poll_publish_time_group][index])
end
elsif params[:poll_publish_time_group] && min_publish_time == ""
setting.update_column(:publish_time, Time.now)
group_id << setting.course_group_id
end
end
@poll.poll_group_settings.where("end_time is null or end_time > '#{Time.now}'").joins(:course_group).reorder("CONVERT(course_groups.name USING gbk) COLLATE gbk_chinese_ci ASC").each_with_index do |setting, index|
if params[:poll_end_time_group] && max_end_time != ""
if params[:poll_end_time_group][index] && params[:poll_end_time_group][index] != ""
setting.update_column(:end_time, params[:poll_end_time_group][index])
end
elsif params[:poll_end_time_group] && max_end_time == ""
setting.update_column(:end_time, Time.at(((1.month.since.to_i)/3600.0).ceil * 3600))
end
end
# 统一设置则删除分组设置
elsif @poll.unified_setting
@poll.poll_group_settings.destroy_all
end
@poll.show_result = params[:show_result] ? 1 : 0
@poll.un_anonymous = params[:un_anonymous] ? 1 : 0
if @poll.save
if create_poll_user.present?
if group_id.present? && group_id.size != 0
if group_id.size == @course.course_groups.count
create_polls_tiding @poll, @course.student
else
members = @course.members.where(:course_group_id => group_id)
create_polls_tiding @poll, members
end
else
create_polls_tiding @poll, @course.student
end
end
redirect_to student_poll_list_poll_path(@poll)
end
end
def get_poll_totalcount poll_question
@total_questions_count = poll_question.poll_votes.count
end
def get_poll_everycount poll_answer
@every_answer_count = poll_answer.poll_votes.count
end
def update_question_num
@poll_question = PollQuestion.find params[:ques_id]
poll_questions = @poll.poll_questions
if @poll_question
if params[:opr] == 'up' && @poll_question.question_number > 1
@before_que = poll_questions.where("question_number = #{@poll_question.question_number - 1}").first
if @before_que && @poll_question.update_attribute('question_number', @poll_question.question_number - 1)
@before_que.update_attribute('question_number', @before_que.question_number + 1)
end
elsif params[:opr] == 'down' && @poll_question.question_number < poll_questions.count
@after_que = poll_questions.where("question_number = #{@poll_question.question_number + 1}").first
if @after_que && @poll_question.update_attribute('question_number', @poll_question.question_number + 1)
@after_que.update_attribute('question_number', @after_que.question_number - 1)
end
end
respond_to do |format|
format.js
end
end
end
#添加题目
def create_poll_question
@last_question = @poll.poll_questions.last
question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
option = {
:is_necessary => (params[:is_necessary] == "1" ? 1 : 0),
:question_title => question_title,
:question_type => params[:question_type] || 1,
:question_number => @poll.poll_questions.count + 1,
:max_choices => params[:max_choices].to_i || 0,
:min_choices => params[:min_choices].to_i || 0
}
@poll_questions = @poll.poll_questions.new option
if params[:question_answer]
for i in 1..params[:question_answer].count
answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
question_option = {
:answer_position => i,
:answer_text => answer
}
@poll_questions.poll_answers.new question_option
end
end
if params[:question_other_answer]
question_option = {
:answer_position => params[:question_answer].count + 1,
:answer_text => ''
}
@poll_questions.poll_answers.new question_option
end
# 如果是插入的话，那么从插入的这个id以后的question_num都将要+1
if params[:quest_id] != "0"
insert_poll = PollQuestion.find params[:quest_id]
if insert_poll
@is_insert = true
ques_num = insert_poll.question_number
@poll.poll_questions.where("question_number > #{ques_num}").update_all(" question_number = question_number + 1")
@poll_question_num = ques_num
@poll_questions.question_number = ques_num + 1
end
end
if @poll_questions.save
respond_to do |format|
format.js
end
end
end
#修改题目
def update_poll_question
@poll_question = PollQuestion.find params[:poll_question]
@poll = @poll_question.poll
@poll_question.question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
@poll_question.max_choices = params[:max_choices].to_i || 0
@poll_question.min_choices = params[:min_choices].to_i || 0
################处理选项
if params[:question_answer]
@poll_question.poll_answers.each do |answer|
answer.destroy unless params[:question_answer].keys.include? answer.id.to_s
end
for i in 1..params[:question_answer].count
question = @poll_question.poll_answers.find_by_id params[:question_answer].keys[i-1]
answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
if question
question.answer_position = i
question.answer_text = answer
question.save
else
question_option = {
:answer_position => i,
:answer_text => answer
}
@poll_question.poll_answers.new question_option
end
end
if params[:question_other_answer]
question = @poll_question.poll_answers.where("answer_text = ''").first
unless question
question_option = {
:answer_position => params[:question_answer].count + 1,
:answer_text => ''
}
@poll_question.poll_answers.new question_option
end
else
question = @poll_question.poll_answers.where("answer_text = ''").first
if question
question.destroy
end
end
end
@poll_question.save
respond_to do |format|
format.js
end
end
#删除题目
def delete_poll_question
@poll_question = PollQuestion.find params[:poll_question]
@poll = @poll_question.poll
@poll.poll_questions.where("question_number>?",@poll_question.question_number).update_all("question_number = question_number - 1")
if @poll_question && @poll_question.destroy
respond_to do |format|
format.js
end
end
end
def publish_notice
if @poll.publish_time
@status = 1
else
@status = 0
end
if @course.course_groups.count > 1
if @poll.unified_setting
@groups = @course.course_groups
else
@groups = @course.course_groups.where(:id => @poll.poll_group_settings.where("publish_time is null or publish_time > '#{Time.now}'").map(&:course_group_id))
end
@all_groups = @groups
@groups = paginateHelper @groups, 5
end
end
#发布问卷
def publish_poll
if @poll.polls_status == 1
if params[:group_ids]
if @course.course_groups.where(:id => params[:group_ids].split(",")).count == @course.course_groups.count
@poll.poll_group_settings.destroy_all
@poll.update_attribute("unified_setting", true)
# 发消息
create_polls_tiding @poll, @course.student
else
@poll.update_attribute("unified_setting", false)
@course.course_groups.each do |group|
poll_group_setting = @poll.poll_group_settings.where(:course_group_id => group.id).first
unless poll_group_setting
PollGroupSetting.create(:poll_id => @poll.id, :course_group_id => group.id, :course_id => @course.id, :publish_time => @poll.publish_time, :end_time => @poll.end_time)
end
end
@poll.poll_group_settings.where(:course_group_id => params[:group_ids].split(",")).update_all(:publish_time => Time.now)
@poll.poll_group_settings.where(:course_group_id => params[:group_ids].split(","), :end_time => nil).update_all(:end_time => Time.at(((1.month.since.to_i)/3600.0).ceil * 3600))
# 发消息
members = @course.members.where(:course_group_id => params[:group_ids].split(","))
create_polls_tiding @poll, members
end
else
@poll.poll_group_settings.destroy_all
# 发消息
create_polls_tiding @poll, @course.student
end
@poll.polls_status = 2
@poll.publish_time = Time.now
if @poll.end_time.nil?
@poll.end_time = Time.at(((1.month.since.to_i)/3600.0).ceil * 3600)
elsif PollGroupSetting.where("poll_id = #{@poll.id} and end_time is not null").count > 0
@poll.update_attribute("end_time", PollGroupSetting.where("poll_id = #{@poll.id} and end_time is not null").map(&:end_time).max)
end
if @poll.save
# create_polls_list @poll
if @poll.course_acts.size == 0
@poll.course_acts << CourseActivity.new(:user_id => @poll.user_id,:course_id => @poll.course_id)
end
end
else
@poll.poll_group_settings.where(:course_group_id => params[:group_ids].split(",")).update_all(:publish_time => Time.now)
@poll.poll_group_settings.where(:course_group_id => params[:group_ids].split(","), :end_time => nil).update_all(:end_time => Time.at(((1.month.since.to_i)/3600.0).ceil * 3600))
if PollGroupSetting.where("poll_id = #{@poll.id} and end_time is not null").count > 0
@poll.update_attribute("end_time", PollGroupSetting.where("poll_id = #{@poll.id} and end_time is not null").map(&:end_time).max)
end
members = @course.members.where(:course_group_id => params[:group_ids].split(","))
create_polls_tiding @poll, members
end
if @poll.end_time > Time.now && @poll.polls_status > 2
@poll.update_attribute("polls_status", 2)
end
redirect_to student_poll_list_poll_path(@poll)
end
def end_notice
if @course.course_groups.count > 1
unless @poll.unified_setting
@groups = @course.course_groups.where(:id => @poll.poll_group_settings.where("publish_time < '#{Time.now}' and end_time > '#{Time.now}'").map(&:course_group_id))
@all_groups = @groups
@groups = paginateHelper @groups, 5
end
end
end
#关闭问卷
def close_poll
time = Time.now
poll_users = @poll.poll_users.where("0=1")
# if @poll.polls_status == 2 && @poll.end_time > Time.now
if params[:group_ids]
# @poll.poll_group_settings.where(:course_group_id => params[:group_id]).where("publish_time > '#{Time.now}' or publish_time is null").update_all(:publish_time => time)
@poll.poll_group_settings.where(:course_group_id => params[:group_ids].split(",")).update_all(:end_time => time)
poll_users = @poll.poll_users.where(:user_id => @course.members.where(:course_group_id => params[:group_ids].split(",")).map(&:user_id))
@poll.update_attribute("end_time", PollGroupSetting.where("poll_id = #{@poll.id} and end_time is not null").map(&:end_time).max)
if @poll.end_time > Time.now && @poll.polls_status > 2
@poll.update_attribute("polls_status", 2)
elsif @poll.end_time <= Time.now && @poll.polls_status == 2
@poll.update_attribute("polls_status", 3)
end
elsif @poll.unified_setting
poll_users = @poll.poll_users
@poll.update_attributes(:polls_status => 3, :end_time => time)
end
poll_users.each do |poll_user|
if poll_user.commit_status == 0 && !poll_user.start_at.nil?
poll_user.update_attributes(:commit_status => 1, :end_at => Time.now)
end
end
# end
redirect_to student_poll_list_poll_path(@poll)
end
#保存问卷
def save_poll
@poll.show_result = params[:show_result].to_i
if @poll.save
respond_to do |format|
format.js
end
end
end
#提交答案
def commit_answer
pq = PollQuestion.find(params[:poll_question_id])
poll_user = PollUser.where(:poll_id => @poll.id, :user_id => User.current.id).first
if (poll_user && poll_user.commit_status == 1) || @poll.end_time < Time.now
render :json => {:text => "Over"}
return
end
if pq.question_type == 1
#单选题
pv = PollVote.find_by_poll_question_id_and_user_id(params[:poll_question_id],User.current.id)
if pv.nil?
#尚未答该题，添加答案
pv = PollVote.new
pv.user_id = User.current.id
pv.poll_question_id = params[:poll_question_id]
end
#修改该题对应答案
pv.poll_answer_id = params[:poll_answer_id]
pv.vote_text = params[:vote_text] ? params[:vote_text] : ""
if pv.save
#保存成功返回成功信息及当前以答题百分比
@percent = get_percent(@poll,User.current)
render :json => {:text => "ok" ,:percent => format("%.2f" ,@percent)}
else
#返回失败信息
render :json => {:text => "failure"}
end
elsif pq.question_type == 2
#多选题
pv = PollVote.find_by_poll_answer_id_and_user_id(params[:poll_answer_id],User.current.id)
if pv.nil?
#尚未答该题，添加答案
count = PollVote.where("poll_question_id = #{params[:poll_question_id].to_i} and user_id = #{User.current.id}").count
if pq.max_choices != 0 && count >= pq.max_choices
render :json => {:text => "over"}
else
pv = PollVote.new
pv.user_id = User.current.id
pv.poll_question_id = params[:poll_question_id]
pv.poll_answer_id = params[:poll_answer_id]
pv.vote_text = params[:vote_text] if params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => "ok",:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
else
#pv不为空，则当前选项之前已被选择，再次点击则是不再选择该项，故删除该答案
if params[:vote_text]
pv.vote_text = params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => "ok",:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
else
if pv.delete
@percent = get_percent(@poll,User.current)
render :json => {:text => "false" ,:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
end
elsif pq.question_type == 3
#单行文本
pv = PollVote.find_by_poll_question_id_and_user_id(params[:poll_question_id],User.current.id)
if pv.nil?
#pv为空之前尚未答题，添加答案
if params[:vote_text].nil? || params[:vote_text].blank?
#用户提交空答案，视作不作答
@percent = get_percent(@poll,User.current)
render :json => {:text => "",:percent => format("%.2f" ,@percent)}
else
#添加答案
pv = PollVote.new
pv.user_id = User.current.id
pv.poll_question_id = params[:poll_question_id]
pv.vote_text = params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
else
#pv不为空说明用户之前已作答
if params[:vote_text].nil? || params[:vote_text].blank?
#用户提交空答案，视为删除答案
if pv.delete
@percent = get_percent(@poll,User.current)
render :json => {:text => "",:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
else
#用户修改答案
pv.vote_text = params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
end
elsif pq.question_type == 4
#多行文本题
pv = PollVote.find_by_poll_question_id_and_poll_answer_id_and_user_id(params[:poll_question_id],params[:poll_answer_id],User.current.id)
if pv.nil?
#pv为空之前尚未答题，添加答案
if params[:vote_text].nil? || params[:vote_text].blank?
#用户提交空答案，视作不作答
@percent = get_percent(@poll,User.current)
render :json => {:text => "",:percent => format("%.2f" ,@percent)}
else
#添加答案
pv = PollVote.new
pv.user_id = User.current.id
pv.poll_question_id = params[:poll_question_id]
pv.poll_answer_id = params[:poll_answer_id]
pv.vote_text = params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
else
#pv不为空说明用户之前已作答
if params[:vote_text].nil? || params[:vote_text].blank?
#用户提交空答案，视为删除答案
if pv.delete
@percent = get_percent(@poll,User.current)
render :json => {:text => "",:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
else
#用户修改答案
pv.vote_text = params[:vote_text]
if pv.save
@percent = get_percent(@poll,User.current)
render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
else
render :json => {:text => "failure"}
end
end
end
else
render :json => {:text => "failure"}
end
end
#提交问卷
def commit_poll
@uncomplete_question = get_uncomplete_question(@poll,User.current)
if @uncomplete_question.count < 1
pu = @poll.poll_users.where(:user_id => User.current.id).first
pu.commit_status = 1
pu.end_at = Time.now
if pu.save
@status = 0 #提交成功
tid_str = ""
member = @course.members.where(:user_id => User.current.id).first
teachers = tiding_teachers @course, member
teachers.find_each do |mem|
tid_str += "," if tid_str != ""
tid_str += "(#{mem.user_id}, #{User.current.id}, #{@poll.id}, 'Poll', #{@poll.id}, 'CommitPoll', #{@course.id}, 'Course', 0, 'Poll', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
end
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
else
@status = 2 #未知错误
end
else
@status = 1 #有未做得必答题
end
respond_to do |format|
format.js
end
end
def import_poll
@poll = Poll.find(params[:to_id])
question_num = @poll.poll_questions.select("max(question_number) question_number").first.question_number
import_poll = Poll.find(params[:import_id])
import_poll.poll_questions.each_with_index do |question,index|
option = {
:is_necessary => question.is_necessary,
:question_title => question.question_title,
:question_type => question.question_type,
:question_number => question_num + index+1
}
poll_questions = @poll.poll_questions.new option
for i in 1..question.poll_answers.count
answer = question.poll_answers[i-1][:answer_text]
question_option = {
:answer_position => i,
:answer_text => answer
}
poll_questions.poll_answers.new question_option
end
@poll.poll_questions << poll_questions
end
if @poll.save
@poll = Poll.find(params[:to_id])
respond_to do |format|
format.js
end
end
end
def cancel_publish
ActiveRecord::Base.transaction do
@poll.poll_users.destroy_all
PollVote.where(:poll_question_id => @poll.poll_questions.pluck(:id)).destroy_all
@poll.update_attributes(:polls_status => 1, :publish_time => nil, :end_time => nil, :unified_setting => 1)
@poll.poll_group_settings.destroy_all
@poll.course_acts.destroy_all
@poll.tidings.destroy_all
create_polls_list @poll
end
redirect_to student_poll_list_poll_path(@poll)
end
#显示某个学生某份问卷的填写结果
def poll_result
@poll_questions = @poll.poll_questions
@left_nav_type = 7
respond_to do |format|
format.html{render :layout => 'base_courses'}
end
end
def set_public
if User.current.admin? || User.current.allowed_to?(:as_teacher, @course)
@poll.update_attributes(:is_public => true)
end
end
def add_to_exercise_bank
exercise_bank = User.current.exercise_banks.where(:container_id => @poll.id, :container_type => "Poll").first
if exercise_bank.present?
exercise_bank.update_attributes(:name => @poll.polls_name, :description => @poll.polls_description, :course_list_id => @poll.course.try(:course_list_id))
question_bank = QuestionBank.where(:container_id => exercise_bank.id, :container_type => exercise_bank.container_type).first
question_bank.update_attributes(:name => exercise_bank.name, :course_list_id => exercise_bank.course_list_id) if question_bank.present?
exercise_bank.exercise_bank_questions.destroy_all
else
exercise_bank = ExerciseBank.new(:name => @poll.polls_name, :description => @poll.polls_description, :user_id => User.current.id, :is_public => 0,
:course_list_id => @poll.course.try(:course_list_id), :container_id => @poll.id, :container_type => "Poll", :quotes => 1)
if exercise_bank.save
QuestionBank.create(:name => exercise_bank.name, :container_id => exercise_bank.id, :container_type => exercise_bank.container_type, :quotes => exercise_bank.quotes,
:user_id => exercise_bank.user_id, :is_public => exercise_bank.is_public, :course_list_id => exercise_bank.course_list_id)
end
end
@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]
}
exercise_bank_question = exercise_bank.exercise_bank_questions.new option
for i in 1..q.poll_answers.count
choice_option = {
:choice_position => i,
:choice_text => q.poll_answers[i-1][:answer_text]
}
exercise_bank_question.exercise_bank_choices.new choice_option
end
end
exercise_bank.save
end
#导出问卷
def export_poll
poll_questions = @poll.poll_questions
respond_to do |format|
format.xls {
send_data(poll_to_xls(poll_questions), :type => "text/excel;charset=utf-8; header=present",
:filename => filename_for_content_disposition("#{@poll.polls_name}.xls") )
}
end
end
# 将题库的问卷导出来
def other_poll
@search = params[:search] ? params[:search].to_s.strip.downcase : ""
if(params[:type].blank? || params[:type] == "1") #我的题库
@polls = User.current.exercise_banks.where(:container_type => "Poll")
elsif params[:type] == "2" #公共题库
@polls = ExerciseBank.where(:container_type => "Poll", :is_public => true)
end
@type = params[:type] || "1"
if @search.present?
course_list_ids = CourseList.where("name like '%#{@search}%'").map(&:id)
course_list_ids = course_list_ids.length == 0 ? "(-1)" : "("+ course_list_ids.join(",") +")"
@polls = @polls.where("name like '%#{@search}%' or course_list_id in #{course_list_ids}").reorder("created_at desc")
else
@polls = @polls.reorder("created_at desc")
end
@course_id = params[:course_id]
@polls = paginateHelper @polls,8
@page = params[:page].nil? ? 1 : params['page'].to_i
poll_count = @polls.count
@total_pages = (poll_count / 8.0).ceil
respond_to do |format|
format.js
end
end
# 将问卷导入本课程
def import_other_poll
course_id = params[:course_id]
course = Course.find(course_id)
if params[:poll_id]
poll = ExerciseBank.find(params[:poll_id])
@poll = quote_poll_bank poll, course
if @poll
redirect_to student_poll_list_poll_path(@poll, :tab => 4)
end
end
end
private
def remove_invalid_poll(course)
polls = Poll.where("polls_type = 'Course' and course_id = #{course.id} and polls_name = ''")
unless polls.empty?
polls.each do |poll|
if poll.poll_questions.empty?
poll.destroy
end
end
end
end
def find_poll_and_course
@poll = Poll.find params[:id]
@course = Course.find @poll.course_id
rescue Exception => e
render_404
end
def find_container
@course = Course.find params[:course_id]
rescue Exception => e
render_404
end
def is_logged
redirect_to signin_path unless User.current.logged?
end
def is_member_of_course
render_403 unless(@course && (User.current.member_of_course?(@course) || User.current.admin?))
end
def is_course_teacher
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
render_403 unless(@course && @is_teacher)
end
#获取未完成的题目
def get_uncomplete_question poll,user
necessary_questions = poll.poll_questions.where("#{PollQuestion.table_name}.is_necessary = 1")
uncomplete_question = []
necessary_questions.each do |question|
answers = get_user_answer(question,user)
if question.question_type != 4
if answers.nil? || answers.count < 1
uncomplete_question << question
end
else
if answers.nil? || answers.count < question.poll_answers.count
uncomplete_question << question
end
end
# if answers.nil? || answers.count < 1
# uncomplete_question << question
# end
end
uncomplete_question
end
#获取用户对某个问题的答案
def get_user_answer(question,user)
user_answer = question.poll_votes.where("#{PollVote.table_name}.user_id = #{user.id}")
user_answer
end
def get_complete_question(poll,user)
questions = poll.poll_questions.includes(:poll_votes)
complete_question = []
questions.each do |question|
answers = question.poll_votes.select{|e| e.user_id == user.id}
if !(answers.empty? || answers.count < 1)
complete_question << question
end
# if question.question_type != 4
# if !(answers.nil? || answers.count < 1)
# complete_question << question
# end
# else
# end
end
complete_question
end
def get_percent poll,user
if poll.poll_questions.count == 0
return 0
else
complete_count = get_complete_question(poll,user).count
all_count = poll.poll_questions.where("question_type != 4").count
# poll.poll_questions.where("question_type = 4").each do |pq|
# all_count += pq.poll_answers.count
# end
return (complete_count.to_f / all_count.to_f)*100
end
end
#PollUser记录用户是否已提交问卷有对应的记录则已提交，没有则新建一个
def get_poll_user poll_id,user_id
pu = PollUser.find_by_poll_id_and_user_id(poll_id,user_id)
if pu.nil?
pu = PollUser.new
end
pu
end
#将poll中题目转换为Excel
def poll_to_xls poll_questions
xls_report = StringIO.new
book = Spreadsheet::Workbook.new
sheet1 = book.create_worksheet :name => "poll"
blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
count_row = 0
member = @course.members.where(:user_id => User.current.id).first
if member.present? && member.teacher_course_groups.count > 0
group_ids = member.teacher_course_groups.pluck(:course_group_id)
group_students = @course.members.where(:course_group_id => group_ids).joins("join users on members.user_id = users.id").select{|m| m.roles.to_s.include?("Student")}
poll_users = @poll.poll_users.where(:commit_status => 1, :user_id => group_students.map(&:user_id))
else
poll_users = @poll.poll_users.where(:commit_status => 1)
end
poll_questions.each do |poll_question|
if poll_question.question_type == 1 || poll_question.question_type == 2
sheet1.row(count_row).default_format = blue
sheet1[count_row,0]= l(:label_poll_question_num,:num => poll_question.question_number)
sheet1[count_row + 1,0] = l(:label_poll_subtotal)
sheet1[count_row + 2,0] = l(:label_poll_proportion)
poll_question.poll_answers.each_with_index do |poll_answer,i|
sheet1[count_row, i + 1] = poll_answer.answer_text == "" ? l(:label_poll_other) : poll_answer.answer_text.gsub(/<\/?.*?>/,"").gsub(/ /," ")
sheet1[count_row + 1, i + 1] = poll_answer.poll_votes.where(:user_id => poll_users.map(&:user_id)).count
sheet1[count_row + 2, i + 1] = statistics_result_percentage(poll_answer.poll_votes.where(:user_id => poll_users.map(&:user_id)).count, total_answer(poll_question.id, poll_users.map(&:user_id))).to_s + "%"
end
sheet1[count_row + 3,0] = l(:label_poll_valid_commit)
sheet1[count_row + 3,1] = total_answer(poll_question.id, poll_users.map(&:user_id))
count_row += 5
else
sheet1.row(count_row).default_format = blue
sheet1[count_row,0] = l(:label_poll_question_num,:num => poll_question.question_number)
sheet1[count_row,1] = poll_question.question_title
count_row += 1
if poll_question.question_type == 3
poll_question.poll_votes.where(:user_id => poll_users.map(&:user_id)).each do |poll_vote|
sheet1[count_row,0] = poll_vote.vote_text.gsub(/<\/?.*?>/,"").gsub(/ /," ")
count_row += 1
end
count_row += 1
else
count = 0
poll_question.poll_answers.reorder("answer_position asc").each_with_index do |poll_answer,i|
sheet1.row(count_row).default_format = blue
sheet1[count_row, i] = poll_answer.answer_text.gsub(/<\/?.*?>/,"").gsub(/ /," ")
count = poll_question.poll_votes.where(:poll_answer_id => poll_answer.id, :user_id => poll_users.map(&:user_id)).count > count ? poll_question.poll_votes.where(:poll_answer_id => poll_answer.id, :user_id => poll_users.map(&:user_id)).count : count
poll_question.poll_votes.where(:poll_answer_id => poll_answer.id, :user_id => poll_users.map(&:user_id)).each_with_index do |poll_vote, j|
sheet1[count_row + j + 1,i] = poll_vote.vote_text.gsub(/<\/?.*?>/,"").gsub(/ /," ")
end
end
count_row = count_row + count + 2
end
end
end
sheet1.row(count_row).default_format = blue
sheet1[count_row ,0] = l(:label_bidding_number)
if @poll.un_anonymous
sheet1[count_row, 1] = l(:label_bidding_user_studentname)
current_index = 2
else
current_index = 1
end
poll_questions.each do |poll_question|
if poll_question.question_type == 4
poll_question.poll_answers.reorder("answer_position asc").each do |ans|
sheet1[count_row ,current_index] = poll_question.question_title + "(#{ans.answer_text})"
current_index += 1
end
else
sheet1[count_row ,current_index] = poll_question.question_title
current_index += 1
end
end
count_row += 1
poll_users.reorder("end_at desc").each_with_index do |poll_user, index|
user = poll_user.user
sheet1[count_row ,0] = index + 1
if @poll.un_anonymous
sheet1[count_row, 1] = user.show_real_name
current_index = 2
else
current_index = 1
end
poll_questions.each_with_index do |poll_question, i|
if poll_question.question_type == 1 || poll_question.question_type == 2
sheet1[count_row ,current_index] = user.poll_votes.where(:poll_question_id => poll_question.id).map{|poll_vote| (poll_vote.poll_answer.answer_text != "" ? poll_vote.poll_answer.answer_text.gsub(/<\/?.*?>/,"").gsub(/ /," ") : l(:label_other_answer) + " (" + poll_vote.vote_text.to_s + ") ") if poll_vote.poll_answer}.join(";")
current_index += 1
elsif poll_question.question_type == 3
sheet1[count_row ,current_index] = user.poll_votes.where(:poll_question_id => poll_question.id).map{|poll_vote| poll_vote.vote_text.gsub(/<\/?.*?>/,"").gsub(/ /," ")}.join(";")
current_index += 1
else
poll_question.poll_answers.reorder("answer_position asc").each do |ans|
poll_vote = user.poll_votes.where(:poll_question_id => poll_question.id, :poll_answer_id => ans.id).first
sheet1[count_row ,current_index] = poll_vote.nil? ? "" : poll_vote.vote_text
current_index += 1
end
end
end
count_row += 1
end
book.write xls_report
xls_report.string
end
end