420 lines
13 KiB
Ruby
420 lines
13 KiB
Ruby
class PollController < ApplicationController
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before_filter :find_poll_and_course, :only => [:edit,:update,:destroy,:show,:statistics_result,:create_poll_question,:commit_poll,:commit_answer,:publish_poll,:republish_poll,:poll_result]
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before_filter :find_container, :only => [:new,:create, :index]
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before_filter :is_member_of_course, :only => [:index,:show,:poll_result]
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before_filter :is_course_teacher, :only => [:new,:create,:edit,:update,:destroy,:publish_poll,:republish_poll]
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include PollHelper
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def index
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if @course
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@is_teacher = User.current.allowed_to?(:as_teacher,@course)
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if @is_teacher
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polls = Poll.where("polls_type = 'Course' and polls_group_id = #{@course.id}")
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else
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polls = Poll.where("polls_type = 'Course' and polls_group_id = #{@course.id} and polls_status = 2")
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end
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@polls = paginateHelper polls,20 #分页
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respond_to do |format|
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format.html{render :layout => 'base_courses'}
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end
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elsif @project
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#项目的问卷调查相关代码
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end
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end
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def show
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@poll = Poll.find params[:id]
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#已提交问卷的用户不能再访问该界面
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if has_commit_poll?(@poll.id,User.current.id) && (!User.current.admin?)
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render_403
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else
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@can_edit_poll = (!has_commit_poll?(@poll.id,User.current.id)) || User.current.admin?
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@percent = get_percent(@poll,User.current)
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poll_questions = @poll.poll_questions
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@poll_questions = paginateHelper poll_questions,5 #分页
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respond_to do |format|
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format.html {render :layout => 'base_courses'}
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end
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end
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end
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def new
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if @course
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option = {
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:polls_name => "",
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:polls_type => @course.class.to_s,
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:polls_group_id => @course.id,
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:polls_status => 1,
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:user_id => User.current.id,
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:published_at => Time.now,
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:closed_at => Time.now,
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:show_result => 1,
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:polls_description => ""
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}
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@poll = Poll.create option
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if @poll
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redirect_to edit_poll_url @poll.id
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end
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elsif @project
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#项目的问卷调查相关代码
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end
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end
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def create
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end
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def edit
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respond_to do |format|
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format.html{render :layout => 'base_courses'}
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end
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end
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def update
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@poll.polls_name = params[:polls_name].empty? ? l(:label_poll_title) : params[:polls_name]
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@poll.polls_description = params[:polls_description].empty? ? l(:label_poll_description) : params[:polls_description]
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if @poll.save
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respond_to do |format|
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format.js
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end
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else
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render_404
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end
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end
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def destroy
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if @poll && @poll.destroy
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respond_to do |format|
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format.js
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end
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end
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end
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def statistics_result
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@poll = Poll.find(params[:id])
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poll_questions = @poll.poll_questions
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@poll_questions = paginateHelper poll_questions, 5
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respond_to do |format|
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format.html{render :layout => 'base_courses'}
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end
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end
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def get_poll_totalcount poll_question
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@total_questions_count = poll_question.poll_votes.count
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end
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def get_poll_everycount poll_answer
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@every_answer_count = poll_answer.poll_votes.count
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end
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#添加题目
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def create_poll_question
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question_title = params[:poll_questions_title].nil? || params[:poll_questions_title].empty? ? l(:label_enter_single_title) : params[:poll_questions_title]
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option = {
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:is_necessary => (params[:is_necessary]=="true" ? 1 : 0),
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:question_title => question_title,
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:question_type => params[:question_type] || 1,
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:question_number => @poll.poll_questions.count + 1
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}
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@poll_questions = @poll.poll_questions.new option
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if params[:question_answer]
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for i in 1..params[:question_answer].count
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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]
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question_option = {
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:answer_position => i,
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:answer_text => answer
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}
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@poll_questions.poll_answers.new question_option
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end
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end
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if @poll_questions.save
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respond_to do |format|
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format.js
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end
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end
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end
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#修改题目
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def update_poll_question
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@poll_question = PollQuestion.find params[:poll_question]
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#@poll = @poll_question.poll
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@poll_question.is_necessary = params[:is_necessary]=="true" ? 1 : 0
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@poll_question.question_title = params[:poll_questions_title].nil? || params[:poll_questions_title].empty? ? l(:label_enter_single_title) : params[:poll_questions_title]
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################处理选项
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if params[:question_answer]
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@poll_question.poll_answers.each do |answer|
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answer.destroy unless params[:question_answer].keys.include? answer.id.to_s
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end
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for i in 1..params[:question_answer].count
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question = @poll_question.poll_answers.find_by_id params[:question_answer].keys[i-1]
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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]
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if question
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question.answer_position = i
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question.answer_text = answer
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question.save
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else
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question_option = {
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:answer_position => i,
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:answer_text => answer
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}
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@poll_question.poll_answers.new question_option
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end
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end
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end
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@poll_question.save
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respond_to do |format|
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format.js
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end
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end
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#删除题目
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def delete_poll_question
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@poll_question = PollQuestion.find params[:poll_question]
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@poll = @poll_question.poll
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poll_questions = @poll.poll_questions.where("question_number > #{@poll_question.question_number}")
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poll_questions.each do |question|
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question.question_number -= 1
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question.save
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end
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if @poll_question && @poll_question.destroy
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respond_to do |format|
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format.js
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end
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end
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end
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#发布问卷
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def publish_poll
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@poll.polls_status = 2
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@poll.published_at = Time.now
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if @poll.save
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if params[:is_remote]
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redirect_to poll_index_url(:polls_type => "Course", :polls_group_id => @course.id)
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else
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respond_to do |format|
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format.js
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end
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end
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end
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end
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#提交答案
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def commit_answer
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pq = PollQuestion.find(params[:poll_question_id])
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if has_commit_poll?(@poll.id,User.current.id) && (!User.current.admin?)
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render :json => {:text => "failure"}
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return
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end
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if pq.question_type == 1
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#单选题
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pv = PollVote.find_by_poll_question_id_and_user_id(params[:poll_question_id],User.current.id)
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if pv.nil?
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#尚未答该题，添加答案
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pv = PollVote.new
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pv.user_id = User.current.id
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pv.poll_question_id = params[:poll_question_id]
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end
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#修改该题对应答案
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pv.poll_answer_id = params[:poll_answer_id]
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if pv.save
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#保存成功返回成功信息及当前以答题百分比
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@percent = get_percent(@poll,User.current)
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render :json => {:text => "ok" ,:percent => format("%.2f" ,@percent)}
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else
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#返回失败信息
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render :json => {:text => "failure"}
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end
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elsif pq.question_type == 2
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#多选题
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pv = PollVote.find_by_poll_answer_id_and_user_id(params[:poll_answer_id],User.current.id)
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if pv.nil?
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#尚未答该题，添加答案
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pv = PollVote.new
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pv.user_id = User.current.id
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pv.poll_question_id = params[:poll_question_id]
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pv.poll_answer_id = params[:poll_answer_id]
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if pv.save
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@percent = get_percent(@poll,User.current)
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render :json => {:text => "true",:percent => format("%.2f" ,@percent)}
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else
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render :json => {:text => "failure"}
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end
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else
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#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
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if pv.delete
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@percent = get_percent(@poll,User.current)
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render :json => {:text => "false" ,:percent => format("%.2f" ,@percent)}
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else
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render :json => {:text => "failure"}
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end
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end
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elsif pq.question_type == 3 || pq.question_type == 4
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#单行文本，多行文本题
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pv = PollVote.find_by_poll_question_id_and_user_id(params[:poll_question_id],User.current.id)
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if pv.nil?
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#pv为空之前尚未答题，添加答案
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if params[:vote_text].nil? || params[:vote_text].blank?
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#用户提交空答案，视作不作答
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@percent = get_percent(@poll,User.current)
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render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
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else
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#添加答案
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pv = PollVote.new
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pv.user_id = User.current.id
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pv.poll_question_id = params[:poll_question_id]
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pv.vote_text = params[:vote_text]
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if pv.save
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@percent = get_percent(@poll,User.current)
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render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
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else
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render :json => {:text => "failure"}
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end
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end
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else
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#pv不为空说明用户之前已作答
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if params[:vote_text].nil? || params[:vote_text].blank?
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#用户提交空答案，视为删除答案
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if pv.delete
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@percent = get_percent(@poll,User.current)
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render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
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else
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render :json => {:text => "failure"}
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end
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else
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#用户修改答案
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pv.vote_text = params[:vote_text]
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if pv.save
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@percent = get_percent(@poll,User.current)
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render :json => {:text => pv.vote_text,:percent => format("%.2f" ,@percent)}
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else
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render :json => {:text => "failure"}
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end
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end
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end
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else
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render :json => {:text => "failure"}
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end
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end
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#提交问卷
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def commit_poll
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@uncomplete_question = get_uncomplete_question(@poll,User.current)
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if @uncomplete_question.count < 1
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pu = get_poll_user(@poll.id,User.current.id)
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pu.user_id = User.current.id
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pu.poll_id = @poll.id
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if pu.save
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#redirect_to poll_index_path(:polls_group_id => @course.id,:polls_type => 'Course')
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@status = 0 #提交成功
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else
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@status = 2 #未知错误
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end
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else
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@status = 1 #有未做得必答题
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end
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respond_to do |format|
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format.js
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end
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end
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#重新发布问卷
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def republish_poll
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@poll.poll_questions.each do |poll_question|
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poll_question.poll_votes.destroy_all
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end
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@poll.poll_users.destroy_all
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@poll.polls_status = 1
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@poll.save
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respond_to do |format|
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format.js
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end
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end
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#显示某个学生某份问卷的填写结果
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def poll_result
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@poll_questions = paginateHelper @poll.poll_questions,5
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respond_to do |format|
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format.html{render :layout => 'base_courses'}
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end
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end
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private
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def find_poll_and_course
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@poll = Poll.find params[:id]
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@course = Course.find @poll.polls_group_id
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rescue Exception => e
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render_404
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end
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def find_container
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if params[:polls_type] && params[:polls_group_id]
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case params[:polls_type]
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when "Course"
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@course = Course.find_by_id params[:polls_group_id]
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when "Project"
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@project = Project.find_by_id params[:polls_group_id]
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end
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else
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render_404
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end
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end
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def is_member_of_course
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render_403 unless(@course && User.current.member_of_course?(@course))
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end
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def is_course_teacher
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@is_teacher = User.current.allowed_to?(:as_teacher,@course)
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render_403 unless(@course && @is_teacher)
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end
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#获取未完成的题目
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def get_uncomplete_question poll,user
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necessary_questions = poll.poll_questions.where("#{PollQuestion.table_name}.is_necessary = 1")
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uncomplete_question = []
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necessary_questions.each do |question|
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answers = get_user_answer(question,user)
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if answers.nil? || answers.count < 1
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uncomplete_question << question
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end
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end
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uncomplete_question
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end
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#获取用户对某个问题的答案
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def get_user_answer(question,user)
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user_answer = question.poll_votes.where("#{PollVote.table_name}.user_id = #{user.id}")
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user_answer
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end
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def get_complete_question(poll,user)
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questions = poll.poll_questions
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complete_question = []
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questions.each do |question|
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answers = get_user_answer(question,user)
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if !(answers.nil? || answers.count < 1)
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complete_question << question
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end
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end
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complete_question
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end
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def get_percent poll,user
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complete_count = get_complete_question(poll,user).count
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if poll.poll_questions.count == 0
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return 0
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else
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return (complete_count.to_f / poll.poll_questions.count.to_f)*100
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end
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end
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#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
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def get_poll_user poll_id,user_id
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pu = PollUser.find_by_poll_id_and_user_id(poll_id,user_id)
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if pu.nil?
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pu = PollUser.new
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end
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pu
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end
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end |