292 lines
9.8 KiB
Ruby
292 lines
9.8 KiB
Ruby
class ExerciseController < ApplicationController
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layout "base_courses"
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before_filter :find_exercise_and_course, :only => [:create_exercise_question, :edit, :update, :show]
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before_filter :find_course, :only => [:index,:new,:create,:student_exercise_list]
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include ExerciseHelper
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include ExerciseHelper
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def index
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remove_invalid_exercise(@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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exercises = @course.exercises
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else
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exercises = @course.exercises.where(:exercise_status => 2)
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end
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@exercises = paginateHelper exercises,20 #分页
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respond_to do |format|
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format.html
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end
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end
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def show
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@exercise = Exercise.find params[:id]
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if @exercise.exercise_status != 2 && (!User.current.allowed_to?(:as_teacher,@course) || User.current.admin?)
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render_403
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return
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end
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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_exercise?(@exercise.id, User.current.id) && (!User.current.admin?)
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redirect_to exercise_index_url(:course_id=> @course.id)
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else
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@can_edit_excercise = (!has_commit_exercise?(@exercise.id,User.current.id)) || User.current.admin?
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# @percent = get_percent(@exercise,User.current)
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exercise_questions = @exercise.exercise_questions
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@exercise_questions = paginateHelper exercise_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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option = {
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:exercise_name => "",
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:course_id => @course.id,
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:exercise_status => 1,
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:user_id => User.current.id,
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:time => "",
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:end_time => "",
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:publish_time => "",
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:exercise_description => "",
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:show_result => ""
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}
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@exercise = Exercise.create option
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if @exercise
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redirect_to edit_exercise_url @exercise.id
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end
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end
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def create
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if params[:exercise]
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exercise = Exercise.find(params[:exercise_id]) if params[:exercise_id]
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exercise ||= Exercise.new
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exercise.exercise_name = params[:exercise][:exercise_name]
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exercise.exercise_description = params[:exercise][:exercise_description]
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exercise.end_time = params[:exercise][:end_time]
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exercise.publish_time = params[:exercise][:publish_time]
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exercise.user_id = User.current.id
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exercise.time = params[:exercise][:time]
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exercise.course_id = params[:course_id]
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exercise.exercise_status = 1
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if exercise.save
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@exercise = exercise
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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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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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@exercise.exercise_name = params[:exercise][:exercise_name]
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@exercise.exercise_description = params[:exercise][:exercise_description]
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@exercise.time = params[:exercise][:time]
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@exercise.end_time = params[:exercise][:end_time]
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@exercise.publish_time = params[:exercise][:publish_time]
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@exercise.show_result = params[:exercise][:show_result]
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if @exercise.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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end
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# 统计结果
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def statistics_result
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@exercise = Exercise.find(params[:id])
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exercise_questions = @exercise.exercise_questions
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@exercise_questions = paginateHelper exercise_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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# 添加题目
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# question_type 1：单选 2：多选 3：填空题
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def create_exercise_question
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question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
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option = {
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:question_title => question_title,
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:question_type => params[:question_type] || 1,
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:question_number => @exercise.exercise_questions.count + 1,
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:question_score => params[:question_score]
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}
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@exercise_questions = @exercise.exercise_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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:choice_position => i,
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:choice_text => answer
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}
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@exercise_questions.exercise_choices.new question_option
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end
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end
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# 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
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if params[:quest_id]
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@is_insert = true
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@exercise.exercise_questions.where("question_number > #{params[:quest_num].to_i}").update_all(" question_number = question_number + 1")
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# @exercise_question_num = params[:quest_num].to_i
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@exercise_questions.question_number = params[:quest_num].to_i + 1
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end
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if @exercise_questions.save
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standart_answer = ExerciseStandardAnswer.new
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standart_answer.exercise_question_id = @exercise_questions.id
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@exercise_questions.question_type == 3 ? standart_answer.answer_text = translate_standard_answer(params[:exercise_choice]) : standart_answer.exercise_choice_id = sigle_selection_standard_answer(params[:exercise_choice])
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standart_answer.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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# params[:exercise_question] The id of exercise_question
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# params[:question_answer] eg:A、B、C选项
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def update_exercise_question
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@exercise_question = ExerciseQuestion.find params[:exercise_question]
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@exercise_questions.question_title = params[:exercise_questions_title].nil? || params[:exercise_questions_title].empty? ? l(:label_enter_single_title) : params[:exercise_questions_title]
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################处理选项
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if params[:question_answer]
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@exercise_question.exercise_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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# 界面需要判断选择题至少有一个选项
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for i in 1..params[:question_answer].count
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question = @exercise_question.exercise_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.exercise_choices_id = 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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:exercise_choices_id => i,
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:answer_text => answer
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}
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@exercise_question.exercise_answers.new question_option
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end
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end
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end
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@exercise_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_exercise_question
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@exercise_question = ExerciseQuestion.find params[:exercise_question]
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@exercise = @exercise_question.exercise
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exercise_questions = @exercise.exercise_questions.where("question_number > #{@exercise_question.question_number}")
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exercise_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 @exercise_question && @exercise_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_excercise
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@exercise.exercise_status = 2
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@exercise.publish_time = Time.now
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if @exercise.save
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if params[:is_remote]
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redirect_to exercise_index_url(:course_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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def student_exercise_list
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@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
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@exercise = Exercise.find params[:id]
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@all_exercises = @course.exercises.order("created_at desc")
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@exercise_count = @exercise.exercise_users.where('score is not NULL').count
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if @is_teacher || (!@exercise.exercise_users.where(:user_id => User.current.id).empty? && Time.parse(@exercise.end_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") <= Time.now.strftime("%Y-%m-%d-%H-%M-%S"))
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@exercise_users_list = @exercise.exercise_users.where('score is not NULL')
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@show_all = true;
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elsif !@exercise.exercise_users.where(:user_id => User.current.id).empty? && Time.parse(@exercise.end_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") > Time.now.strftime("%Y-%m-%d-%H-%M-%S")
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@exercise_users_list = @exercise.exercise_users.where("user_id = ? and score is not NULL",User.current.id)
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else
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@exercise_users_list = []
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end
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respond_to do |format|
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format.html
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end
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end
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private
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# 获取问题的答案
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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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# 是否完成了答题
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def get_complete_question(exercise,user)
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questions = exercise.exercise_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 exercise,user
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complete_count = get_complete_question(exercise,user).count
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if exercise.exercise_questions.count == 0
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return 0
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else
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return (complete_count.to_f / exercise.exercise_questions.count.to_f)*100
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end
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end
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def remove_invalid_exercise(course)
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exercises = course.exercises.where("exercise_name=?","")
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unless exercises.empty?
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exercises.each do |exercise|
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exercise.destroy
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end
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end
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end
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def find_exercise_and_course
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@exercise = Exercise.find params[:id]
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@course = Course.find @exercise.course_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_course
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@course = Course.find params[:course_id]
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rescue Exception => e
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render_404
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end
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end |