1021 lines
43 KiB
Ruby
1021 lines
43 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, :destroy,
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:commit_exercise, :commit_answer,:publish_exercise,:republish_exercise,
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:show_student_result,:student_exercise_list, :update_question_num,
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:send_to_course, :get_student_uncomplete_question, :edit_question_score]
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before_filter :find_course, :only => [:index,:new,:create]
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include ExerciseHelper
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def index
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publish_exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
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publish_exercises.each do |exercise|
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exercise.update_column('exercise_status', 2)
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course = exercise.course
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course.members.each do |m|
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if m.user_id != exercise.user_id
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exercise.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => course.id, :viewed => false, :status => 2)
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end
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end
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end
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if @course.is_public == 0 && !(User.current.member_of_course?(@course)||User.current.admin?)
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render_403
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return
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end
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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 || User.current.admin?
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exercises = @course.exercises.order("created_at asc")
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else
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exercises = @course.exercises.where("exercise_status <> 1").order("created_at asc")
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end
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@exercises = paginateHelper exercises,20 #分页
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@left_nav_type = 8
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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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publish_exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
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publish_exercises.each do |exercise|
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exercise.update_column('exercise_status', 2)
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course = exercise.course
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course.members.each do |m|
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if m.user_id != exercise.user_id
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exercise.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => course.id, :viewed => false, :status => 2)
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end
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end
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end
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unless User.current.member_of_course?(@course) || User.current.admin?
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render_403
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return
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end
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@exercise = Exercise.find params[:id]
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@exercise.course_messages.each do |message|
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if User.current.id == message.user_id && message.viewed == 0
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message.update_attributes(:viewed => true) if message.viewed == 0
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end
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end
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@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
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exercise_end = @exercise.end_time.nil? ? false : @exercise.end_time > Time.now
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if @exercise.time == -1
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@can_edit_excercise = exercise_end
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else
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@can_edit_excercise = !has_commit_exercise?(@exercise.id,User.current.id)&& exercise_end
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end
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unless @is_teacher
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@exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
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if @exercise_user.nil?
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eu = ExerciseUser.create(:user_id => User.current.id, :exercise_id => @exercise.id, :start_at => Time.now, :status => false)
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@exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
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end
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#score = calculate_student_score(@exercise, User.current)
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#@exercise_user.update_attributes(:objective_score => score, :score => (score + (@exercise_user.subjective_score > 0 ? @exercise_user.subjective_score : 0)))
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end
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# @percent = get_percent(@exercise,User.current)
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@exercise_questions = @exercise.exercise_questions
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@left_nav_type = 8
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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 => 1
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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 = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
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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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@left_nav_type = 8
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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].blank? ? -1 : params[:exercise][:time]
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@exercise.end_time = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
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@exercise.publish_time = params[:exercise][:publish_time]
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@exercise.show_result = params[:show_result] ? 1 : 0
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@exercise.question_random = params[:question_random] ? 0 : 1
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@exercise.choice_random = params[:choice_random] ? 0 : 1
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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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@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
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if @exercise && @exercise.destroy
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if @is_teacher
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exercises = Exercise.where("course_id =?", @course.id)
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else
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exercises = Exercise.where("course_id =? and exercise_status =?", @course.id, 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.js
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end
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end
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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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@left_nav_type = 8
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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 => params[:question_type] == "1"? @exercise.exercise_questions.where("question_type = 1").count + 1 :
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(params[:question_type] == "2" ? (@exercise.exercise_questions.where("question_type = 2").count + 1) :
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(params[:question_type] == "3" ? (@exercise.exercise_questions.where("question_type = 3").count + 1) :
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@exercise.exercise_questions.where("question_type = 4").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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# params[:question_answer] 题目选项
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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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if @exercise_questions.question_type == 1
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 1).update_all(" question_number = question_number + 1")
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#@exercise.exercise_questions.where("question_number > #{params[:quest_num].to_i} and question_type == 1").update_all(" question_number = question_number + 1")
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elsif @exercise_questions.question_type == 2
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 2).update_all(" question_number = question_number + 1")
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elsif @exercise_questions.question_type == 3
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 3).update_all(" question_number = question_number + 1")
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else
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 4).update_all(" question_number = question_number + 1")
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end
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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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# params[:exercise_choice] 标准答案参数
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# 问答题标准答案有三个，单独处理
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if @exercise_questions.question_type == 3
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for i in 1..params[:exercise_choice].count
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standart_answer = ExerciseStandardAnswer.new
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standart_answer.exercise_question_id = @exercise_questions.id
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standart_answer.answer_text = params[:exercise_choice].values[i-1]
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standart_answer.save
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end
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elsif @exercise_questions.question_type == 4
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unless params[:exercise_choice] == ""
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standart_answer = ExerciseStandardAnswer.new
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standart_answer.exercise_question_id = @exercise_questions.id
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standart_answer.answer_text = params[:exercise_choice]
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standart_answer.save
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end
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else
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standart_answer = ExerciseStandardAnswer.new
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standart_answer.exercise_question_id = @exercise_questions.id
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if @exercise_questions.question_type == 1
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standart_answer.exercise_choice_id = sigle_selection_standard_answer(params[:exercise_choice])
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elsif @exercise_questions.question_type == 2
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standart_answer.exercise_choice_id = multiselect_standard_answer(params[:exercise_choice])
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end
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standart_answer.save
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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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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_question.question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
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@exercise_question.question_score = params[:question_score]
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# 处理选项:如果选了某个选项，那么则要删除之前的选项
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if params[:question_answer]
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@exercise_question.exercise_choices.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 = @exercise_question.exercise_choices.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.choice_position = i
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question.choice_text = answer
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question.save
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else
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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_question.exercise_choices.new question_option
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end
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end
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end
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# 更新标准答案
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if params[:exercise_choice]
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if @exercise_question.question_type == 3
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# 删除不合理的选项
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@exercise_question.exercise_standard_answers.each do |answer|
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answer.destroy unless params[:exercise_choice].keys.include? answer.id.to_s
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end
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for i in 1..params[:exercise_choice].count
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# 找到对应的标准答案
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question_standart = @exercise_question.exercise_standard_answers.find_by_id params[:exercise_choice].keys[i-1]
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# 标准答案值
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answer_standart = (params[:exercise_choice].values[i-1].nil? || params[:exercise_choice].values[i-1].empty?) ? l(:label_new_answer) : params[:exercise_choice].values[i-1]
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if question_standart
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question_standart.answer_text = answer_standart
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question_standart.save
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else
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standart_answer_option = {
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:answer_text => answer_standart
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}
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@exercise_question.exercise_standard_answers.new standart_answer_option
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end
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end
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elsif @exercise_question.question_type == 4
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answer_standart = @exercise_question.exercise_standard_answers.empty? ? nil : @exercise_question.exercise_standard_answers.first
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if params[:exercise_choice] == "" && !answer_standart.nil?
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answer_standart.destroy
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elsif params[:exercise_choice] != "" && !answer_standart.nil?
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answer_standart.answer_text = params[:exercise_choice]
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answer_standart.save
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elsif params[:exercise_choice] != "" && answer_standart.nil?
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standart_answer_option = {
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:answer_text => params[:exercise_choice]
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}
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@exercise_question.exercise_standard_answers.new standart_answer_option
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end
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else
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answer_standart = @exercise_question.exercise_standard_answers.first ? @exercise_question.exercise_standard_answers.first : ExerciseStandardAnswer.new(:exercise_question_id => @exercise_question.id)
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answer_standart.exercise_choice_id = @exercise_question.question_type == 1 ? sigle_selection_standard_answer(params[:exercise_choice]) : multiselect_standard_answer(params[:exercise_choice])
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answer_standart.save
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end
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@exercise_question.save
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@exercise = @exercise_question.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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# 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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if @exercise_question.question_type == 1
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 1).update_all(" question_number = question_number - 1")
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#@exercise.exercise_questions.where("question_number > #{params[:quest_num].to_i} and question_type == 1").update_all(" question_number = question_number + 1")
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elsif @exercise_question.question_type == 2
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 2).update_all(" question_number = question_number - 1")
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elsif @exercise_question.question_type == 3
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 3).update_all(" question_number = question_number - 1")
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else
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ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 4).update_all(" question_number = question_number - 1")
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end
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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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#
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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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#题目上移/下移
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def update_question_num
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@exercise_question = ExerciseQuestion.find params[:ques_id]
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exercise_questions = @exercise.exercise_questions
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if @exercise_question
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if params[:opr] == 'up' && @exercise_question.question_number > 1
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@before_que = exercise_questions.where("question_type = #{@exercise_question.question_type} and question_number = #{@exercise_question.question_number - 1}").first
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if @before_que && @exercise_question.update_attribute('question_number', @exercise_question.question_number - 1)
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@before_que.update_attribute('question_number', @before_que.question_number + 1)
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end
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elsif params[:opr] == 'down' && @exercise_question.question_number < exercise_questions.count
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@after_que = exercise_questions.where("question_type = #{@exercise_question.question_type} and question_number = #{@exercise_question.question_number + 1}").first
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if @after_que && @exercise_question.update_attribute('question_number', @exercise_question.question_number + 1)
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@after_que.update_attribute('question_number', @after_que.question_number - 1)
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end
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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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end
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# 发送试卷
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def send_to_course
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params[:course_ids].each do |course|
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option = {
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:exercise_name => @exercise.exercise_name,
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:exercise_status => 1,
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:user_id => User.current.id,
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:show_result => 1,
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:course_id => course.to_i,
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:time => @exercise.time,
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:exercise_description => @exercise.exercise_description
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}
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exercise = Exercise.create option
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@exercise.exercise_questions.each do |q|
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option = {
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:question_title => q[:question_title],
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:question_type => q[:question_type] || 1,
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:question_number => q[:question_number],
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:question_score => q[:question_score]
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}
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exercise_question = exercise.exercise_questions.new option
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for i in 1..q.exercise_choices.count
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choice_option = {
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:choice_position => i,
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:choice_text => q.exercise_choices[i-1][:choice_text]
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}
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exercise_question.exercise_choices.new choice_option
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end
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for i in 1..q.exercise_standard_answers.count
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standard_answer_option = {
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:exercise_choice_id => q.exercise_standard_answers[i-1][:exercise_choice_id],
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:answer_text => q.exercise_standard_answers[i-1][:answer_text]
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}
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exercise_question.exercise_standard_answers.new standard_answer_option
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end
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end
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exercise.save
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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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# 搜索当前用户任教的班级（不包含该试卷所在的班级）
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def search_courses
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@user = User.current
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if !params[:name].nil?
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||
search = "%#{params[:name].to_s.strip.downcase}%"
|
||
@courses = @user.courses.not_deleted.where("courses.id != #{params[:course].to_i} and (#{Course.table_name}.id = #{params[:search].to_i } or #{Course.table_name}.name like :p)",:p=>search).reorder("created_at desc").select {|course| @user.allowed_to?(:as_teacher,course)}
|
||
else
|
||
@courses = @user.courses.not_deleted.where("courses.id != #{params[:course].to_i}").reorder("created_at desc").select {|course| @user.allowed_to?(:as_teacher,course)}
|
||
end
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
# 发布试卷
|
||
def publish_exercise
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
|
||
@index = params[:index]
|
||
@exercise.exercise_status = 2
|
||
@exercise.publish_time = Time.now
|
||
if @exercise.save
|
||
#redirect_to exercise_index_url(:course_id=> @course.id)
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
end
|
||
|
||
# 重新发布试卷
|
||
# 重新发布的时候会删除所有的答题
|
||
def republish_exercise
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
|
||
@index = params[:index]
|
||
@exercise.exercise_questions.each do |exercise_question|
|
||
exercise_question.exercise_answers.destroy_all
|
||
end
|
||
@exercise.course_messages.destroy_all
|
||
@exercise.exercise_users.destroy_all
|
||
@exercise.exercise_status = 1
|
||
@exercise.publish_time = nil
|
||
@exercise.save
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
def student_exercise_list
|
||
=begin
|
||
if @exercise.end_time <= Time.now
|
||
@course.student.each do |student|
|
||
if ExerciseUser.where("user_id = ? && exercise_id = ?",student.student_id,@exercise.id).empty?
|
||
ExerciseUser.create(:user_id => student.student_id, :exercise_id => @exercise.id, :start_at => @exercise.end_time, :status => true,:score=>0)
|
||
end
|
||
|
||
s_score = calculate_student_score(@exercise, student.student)
|
||
exercise_user = ExerciseUser.where("user_id =? and exercise_id=?", student.student_id, @exercise.id).first
|
||
exercise_user.update_attributes(:score => s_score)
|
||
end
|
||
end
|
||
=end
|
||
@name,@select_group = params[:name].to_s.strip || "",params[:group]
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
|
||
if @is_teacher
|
||
@all_exercises = @course.exercises.order("created_at desc")
|
||
else
|
||
@all_exercises = @course.exercises.where("exercise_status > 1").order("created_at desc")
|
||
end
|
||
student_id = @course.student.blank? ? "(-1)" : "(" + @course.student.map{|student| student.student_id}.join(",") + ")"
|
||
if @select_group
|
||
if @select_group == "0"
|
||
none_group_students = @course.members.select{ |member| member.course_group_id == 0 }
|
||
if none_group_students.empty?
|
||
student_in_group = '(0)'
|
||
else
|
||
student_in_group = '(' + none_group_students.map{ |member| member.user_id }.join(',') + ')'
|
||
end
|
||
elsif @select_group == "-1"
|
||
all_group_students = @course.members.select{ |member| member.course_group_id }
|
||
if all_group_students.empty?
|
||
student_in_group = '(0)'
|
||
else
|
||
student_in_group = '(' + all_group_students.map{ |member| member.user_id }.join(',') + ')'
|
||
end
|
||
else
|
||
course_group = CourseGroup.find_by_id(@select_group)
|
||
group_students = course_group.users
|
||
if group_students.empty?
|
||
student_in_group = '(0)'
|
||
else
|
||
student_in_group = '(' + group_students.map{ |user| user.id }.join(',') + ')'
|
||
end
|
||
end
|
||
if @is_teacher || (!@exercise.exercise_users.where("user_id = #{User.current.id}").empty? && @exercise.end_time <= Time.now)
|
||
@exercise_users_list = search_exercise_member @exercise.exercise_users.where("user_id in #{student_id} and user_id in #{student_in_group}"), @name
|
||
@show_all = true;
|
||
elsif !@exercise.exercise_users.where("user_id = #{User.current.id}").empty? && @exercise.end_time > Time.now
|
||
@exercise_users_list = search_exercise_member @exercise.exercise_users.where("user_id = ? and user_id in #{student_id} and user_id in #{student_in_group}",User.current.id), @name
|
||
else
|
||
@exercise_users_list = []
|
||
end
|
||
|
||
else
|
||
if @is_teacher || (!@exercise.exercise_users.where("user_id = #{User.current.id}").empty? && @exercise.end_time <= Time.now)
|
||
@exercise_users_list = search_exercise_member @exercise.exercise_users.where("user_id in #{student_id}"), @name
|
||
@show_all = true;
|
||
elsif !@exercise.exercise_users.where("user_id = #{User.current.id}").empty? && @exercise.end_time > Time.now
|
||
@exercise_users_list = search_exercise_member @exercise.exercise_users.where("user_id = ? and user_id in #{student_id}",User.current.id), @name
|
||
else
|
||
@exercise_users_list = []
|
||
end
|
||
end
|
||
@exercise_count = @exercise.exercise_users.where("commit_status = 1 and user_id in #{student_id}").count
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.js
|
||
format.html
|
||
format.xls {
|
||
filename = "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@exercise.exercise_name}#{l(:excel_exercise_list)}.xls"
|
||
send_data(exercise_to_xls(@exercise_users_list), :type => "text/excel;charset=utf-8; header=present",
|
||
:filename => filename_for_content_disposition(filename))
|
||
}
|
||
end
|
||
end
|
||
|
||
# 学生提交答卷，选中答案的过程中提交
|
||
def commit_answer
|
||
eq = ExerciseQuestion.find(params[:exercise_question_id])
|
||
# 已提交过的且是限时的则不允许答题
|
||
if (has_commit_exercise?(@exercise.id,User.current.id) && (!User.current.admin?) && @exercise.time != -1) || @exercise.end_time < Time.now
|
||
render :json => {:text => "failure"}
|
||
return
|
||
end
|
||
if eq.question_type == 1
|
||
# 单选题
|
||
ea = ExerciseAnswer.find_by_exercise_question_id_and_user_id(params[:exercise_question_id],User.current.id)
|
||
if ea.nil?
|
||
# 尚未答该题，添加答案
|
||
ea = ExerciseAnswer.new
|
||
ea.user_id = User.current.id
|
||
ea.exercise_question_id = params[:exercise_question_id]
|
||
end
|
||
#修改该题对应答案
|
||
ea.exercise_choice_id = params[:exercise_choice_id]
|
||
if ea.save
|
||
# 保存成功返回成功信息及当前以答题百分比
|
||
uncomplete_question = get_uncomplete_question(@exercise, User.current)
|
||
if uncomplete_question.count < 1
|
||
complete = 1;
|
||
else
|
||
complete = 0;
|
||
end
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => "ok" ,:complete => complete,:percent => format("%.2f" ,@percent)}
|
||
else
|
||
#返回失败信息
|
||
render :json => {:text => "failure"}
|
||
end
|
||
elsif eq.question_type == 2
|
||
#多选题
|
||
ea = ExerciseAnswer.find_by_exercise_choice_id_and_user_id(params[:exercise_choice_id],User.current.id)
|
||
if ea.nil?
|
||
#尚未答该题，添加答案
|
||
ea = ExerciseAnswer.new
|
||
ea.user_id = User.current.id
|
||
ea.exercise_question_id = params[:exercise_question_id]
|
||
ea.exercise_choice_id = params[:exercise_choice_id]
|
||
if ea.save
|
||
uncomplete_question = get_uncomplete_question(@exercise, User.current)
|
||
if uncomplete_question.count < 1
|
||
complete = 1;
|
||
else
|
||
complete = 0;
|
||
end
|
||
is_answer = User.current.exercise_answer.where(:exercise_question_id => params[:exercise_question_id].to_i).count > 0
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => "ok",:complete => complete,:percent => format("%.2f" ,@percent),:is_answer => is_answer}
|
||
else
|
||
render :json => {:text => "failure"}
|
||
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 ea.delete
|
||
is_answer = User.current.exercise_answer.where(:exercise_question_id => params[:exercise_question_id].to_i).count > 0
|
||
@percent = get_percent(@exercise, User.current)
|
||
render :json => {:text => "false" ,:percent => format("%.2f" , @percent),:is_answer => is_answer}
|
||
else
|
||
render :json => {:text => "failure"}
|
||
end
|
||
end
|
||
elsif eq.question_type == 3 || eq.question_type == 4
|
||
#单行文本，多行文本题
|
||
ea = ExerciseAnswer.find_by_exercise_question_id_and_user_id(params[:exercise_question_id], User.current.id)
|
||
if ea.nil?
|
||
# ea为空之前尚未答题，添加答案
|
||
if params[:answer_text].nil? || params[:answer_text].blank?
|
||
#用户提交空答案，视作不作答
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => "",:percent => format("%.2f", @percent)}
|
||
else
|
||
#添加答案
|
||
ea = ExerciseAnswer.new
|
||
ea.user_id = User.current.id
|
||
ea.exercise_question_id = params[:exercise_question_id]
|
||
ea.answer_text = params[:answer_text]
|
||
if ea.save
|
||
uncomplete_question = get_uncomplete_question(@exercise, User.current)
|
||
if uncomplete_question.count < 1
|
||
complete = 1;
|
||
else
|
||
complete = 0;
|
||
end
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => ea.answer_text,:complete => complete,:percent => format("%.2f",@percent)}
|
||
else
|
||
render :json => {:text => "failure"}
|
||
end
|
||
end
|
||
|
||
else
|
||
# ea不为空说明用户之前已作答
|
||
if params[:answer_text].nil? || params[:answer_text].blank?
|
||
# 用户提交空答案，视为删除答案
|
||
if ea.delete
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => "",:percent => format("%.2f", @percent)}
|
||
else
|
||
render :json => {:text => "failure"}
|
||
end
|
||
else
|
||
#用户修改答案
|
||
ea.answer_text = params[:answer_text]
|
||
if ea.save
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => ea.answer_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_exercise
|
||
# 老师不需要提交
|
||
if User.current.allowed_to?(:as_teacher,@course)
|
||
# if @exercise.publish_time.nil? || @exercise.publish_time <= Time.now
|
||
# @exercise.update_attributes(:exercise_status => 2)
|
||
# @exercise.update_attributes(:publish_time => Time.now)
|
||
# course = @exercise.course
|
||
# course.members.each do |m|
|
||
# @exercise.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => course.id, :viewed => false, :status => 2)
|
||
# end
|
||
# redirect_to exercise_url(@exercise)
|
||
# return
|
||
# elsif @exercise.publish_time > Time.now
|
||
# redirect_to exercise_url(@exercise)
|
||
# return
|
||
# end
|
||
# redirect_to exercise_url(@exercise)
|
||
# REDO: 提示提交成功
|
||
else
|
||
# 更新提交状态
|
||
cur_exercise_user = ExerciseUser.where("user_id =? and exercise_id=?", User.current, @exercise.id).first
|
||
cur_exercise_user.update_attributes(:status => 1, :commit_status => 1)
|
||
if @exercise.time && @exercise.time != -1
|
||
score = calculate_student_score(@exercise, User.current)
|
||
cur_exercise_user.update_attributes(:score => score)
|
||
end
|
||
# 答题过程中需要统计完成量
|
||
#@uncomplete_question = get_uncomplete_question(@exercise, User.current)
|
||
# 获取改学生的考试得分
|
||
#@score = calculate_student_score(@exercise, User.current)
|
||
# @score = 100
|
||
# if @uncomplete_question.count < 1
|
||
# # 查看是否有已提交记录
|
||
# cur_exercise_user.score = @score
|
||
# if cur_exercise_user.save
|
||
# #redirect_to poll_index_path(:polls_group_id => @course.id,:polls_type => 'Course')
|
||
# @status = 0 #提交成功
|
||
# else
|
||
# @status = 2 #未知错误
|
||
# end
|
||
# else
|
||
# @status = 1 #有未做得必答题
|
||
# end
|
||
# @save = params[:save].to_i if params[:save]
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
end
|
||
|
||
# 获取学生未答情况
|
||
def get_student_uncomplete_question
|
||
time_limit = @exercise.time == -1 || @exercise.time.nil?
|
||
uncomplete_count = get_uncomplete_question(@exercise, User.current).count
|
||
render :json => {:time_limit => time_limit, :uncomplete_count => uncomplete_count}
|
||
end
|
||
|
||
# 主观题打分
|
||
def edit_question_score
|
||
exercise_user = @exercise.exercise_users.where(:user_id => params[:user_id].to_i).first
|
||
exercise_answer = ExerciseAnswer.where(:user_id => params[:user_id].to_i, :exercise_question_id => params[:exercise_question_id].to_i).first
|
||
exercise_question = ExerciseQuestion.where(:id => params[:exercise_question_id].to_i).first
|
||
if exercise_user && exercise_answer && exercise_question
|
||
score = params[:score].to_i
|
||
unless score > exercise_question.question_score || score < 0
|
||
exercise_answer.update_attributes(:score => score)
|
||
exercise_user.update_attributes(:subjective_score => calculate_subjective_score(@exercise, exercise_user.user))
|
||
exercise_user.update_attributes(:score => ((exercise_user.objective_score > 0 ? exercise_user.objective_score : 0) + (exercise_user.subjective_score > 0 ? exercise_user.subjective_score : 0)))
|
||
render :json => {:status => 1, :score => score, :total_score => exercise_user.score}
|
||
else
|
||
render :json => {:status => 2}
|
||
end
|
||
else
|
||
render :json => {:status => 0}
|
||
end
|
||
end
|
||
|
||
#查看学生的答卷情况
|
||
def show_student_result
|
||
@user = User.find params[:user_id]
|
||
@can_edit_excercise = false
|
||
@exercise_questions = @exercise.exercise_questions
|
||
#score = calculate_student_score(@exercise, @user)
|
||
#eu = get_exercise_user(@exercise.id, @user.id)
|
||
#eu.update_attributes(:score => score)
|
||
@exercise_user = ExerciseUser.where("user_id =? and exercise_id=?", @user.id, @exercise.id).first
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.html {render :layout => 'base_courses'}
|
||
end
|
||
end
|
||
|
||
# 计算学生得分
|
||
def calculate_student_score(exercise, user)
|
||
score = 0
|
||
score1 = 0
|
||
score2 = 0
|
||
score3 = 0
|
||
exercise_qustions = exercise.exercise_questions
|
||
exercise_qustions.each do |question|
|
||
answer = get_user_answer(question, user)
|
||
standard_answer = get_user_standard_answer(question, user)
|
||
unless answer.empty?
|
||
# 问答题有多个答案
|
||
if question.question_type == 3 && !standard_answer.empty?
|
||
if standard_answer.include?(answer.first.answer_text)
|
||
score1 = score1+ question.question_score unless question.question_score.nil?
|
||
end
|
||
elsif question.question_type == 1 && !standard_answer.nil?
|
||
if answer.first.exercise_choice.choice_position == standard_answer.exercise_choice_id
|
||
score2 = score2 + question.question_score unless question.question_score.nil?
|
||
end
|
||
elsif question.question_type == 2 && !standard_answer.nil?
|
||
arr = get_mulscore(question, user)
|
||
if arr.to_i == standard_answer.exercise_choice_id
|
||
score3 = score3 + question.question_score unless question.question_score.nil?
|
||
end
|
||
# ecs = ExerciseAnswer.where("user_id =? and exercise_question_id =?", user.id, question.id)
|
||
# arr = []
|
||
# ecs.each do |ec|
|
||
# arr << ec.exercise_choice.choice_position
|
||
# end
|
||
# arr.sort
|
||
# arr = arr.join("")
|
||
# if arr.to_i == standard_answer.exercise_choice_id
|
||
# score3 = score + question.question_score unless question.question_score.nil?
|
||
# end
|
||
end
|
||
end
|
||
end
|
||
score = score1 + score2 + score3
|
||
end
|
||
|
||
# 计算主观题总分
|
||
def calculate_subjective_score exercise, user
|
||
score = 0
|
||
exercise_questions = exercise.exercise_questions.where(:question_type => 4)
|
||
exercise_answers = user.exercise_answer.where(:exercise_question_id => exercise_questions.map(&:id))
|
||
exercise_answers.each do |ea|
|
||
if ea.score != -1
|
||
score += ea.score
|
||
end
|
||
end
|
||
score
|
||
end
|
||
|
||
#导入试卷的弹框
|
||
def other_exercise
|
||
# 查作者是我，或者作者是当前课程的老师，且不在当前课程内的试卷 进行导入
|
||
@order,@b_sort = params[:order] || "created_at",params[:sort] || "desc"
|
||
@r_sort = @b_sort == "desc" ? "asc" : "desc"
|
||
courses = User.current.courses.not_deleted.select { |course| User.current.allowed_to?(:as_teacher,course)}
|
||
course_ids = courses.empty? ? "(-1)" : "(" + courses.map { |course| course.id}.join(',') + ")"
|
||
#none_courses = User.current.courses.where("is_delete = 1 or #{Course.table_name}.id = #{params[:course_id].to_i}")
|
||
#none_course_ids = none_courses.empty? ? "(-1)" : "(" + none_courses.map { |course| course.id}.join(',') + ")"
|
||
@exercises = Exercise.where("(user_id = #{User.current.id} or course_id in #{course_ids}) and course_id != #{params[:course_id].to_i}").order("#{@order} #{@b_sort}")
|
||
@course_id = params[:course_id]
|
||
@is_remote = true
|
||
@ex_count = @exercises.count
|
||
@ex_pages = Paginator.new @ex_count, 10, params['page'] || 1
|
||
@offset ||= @ex_pages.offset
|
||
@exercises = paginateHelper @exercises,10
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
#搜索导入页面的试卷
|
||
def search_exercises
|
||
@order,@b_sort = params[:order] || "created_at",params[:sort] || "desc"
|
||
@r_sort = @b_sort == "desc" ? "asc" : "desc"
|
||
search = params[:name].to_s.strip.downcase
|
||
courses = User.current.courses.not_deleted.select { |course| User.current.allowed_to?(:as_teacher,course)}
|
||
course_ids = courses.empty? ? "(-1)" : "(" + courses.map { |course| course.id}.join(',') + ")"
|
||
@exercises = Exercise.where("(user_id = #{User.current.id} or course_id in #{course_ids}) and course_id != #{params[:course_id].to_i} and exercise_name like '%#{search}%'").order("#{@order} #{@b_sort}")
|
||
@is_remote = true
|
||
@ex_count = @exercises.count
|
||
@ex_pages = Paginator.new @ex_count, 10, params['page'] || 1
|
||
@offset ||= @ex_pages.offset
|
||
@exercises = paginateHelper @exercises,10
|
||
@course_id = params[:course_id]
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
#将选择的试卷导入到班级
|
||
def import_other_exercise
|
||
course_id = params[:course_id]
|
||
@course = Course.find(course_id)
|
||
params[:exercise_id].each_with_index do |ex,i|
|
||
exercise = Exercise.find(ex)
|
||
option = {
|
||
:exercise_name => exercise.exercise_name,
|
||
:exercise_status => 1,
|
||
:user_id => User.current.id,
|
||
:show_result => 1,
|
||
:course_id => @course.id,
|
||
:time => exercise.time,
|
||
:exercise_description => exercise.exercise_description
|
||
}
|
||
@exercise = Exercise.create option
|
||
|
||
exercise.exercise_questions.each do |q|
|
||
option = {
|
||
:question_title => q[:question_title],
|
||
:question_type => q[:question_type] || 1,
|
||
:question_number => q[:question_number],
|
||
:question_score => q[:question_score]
|
||
}
|
||
@exercise_question = @exercise.exercise_questions.new option
|
||
|
||
for i in 1..q.exercise_choices.count
|
||
choice_option = {
|
||
:choice_position => i,
|
||
:choice_text => q.exercise_choices[i-1][:choice_text]
|
||
}
|
||
@exercise_question.exercise_choices.new choice_option
|
||
end
|
||
|
||
for i in 1..q.exercise_standard_answers.count
|
||
standard_answer_option = {
|
||
:exercise_choice_id => q.exercise_standard_answers[i-1][:exercise_choice_id],
|
||
:answer_text => q.exercise_standard_answers[i-1][:answer_text]
|
||
}
|
||
@exercise_question.exercise_standard_answers.new standard_answer_option
|
||
end
|
||
end
|
||
@exercise.save
|
||
end
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
private
|
||
#测验列表转换为excel
|
||
def exercise_to_xls items
|
||
xls_report = StringIO.new
|
||
book = Spreadsheet::Workbook.new
|
||
sheet1 = book.create_worksheet :name => "exercise"
|
||
blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
|
||
sheet1.row(0).default_format = blue
|
||
sheet1.row(0).concat([l(:excel_user_id),l(:excel_user_name),l(:excel_nickname),l(:excel_student_id),l(:excel_mail),l(:excel_objective_score),l(:excel_subjective_score),l(:excel_f_score),l(:excel_answer_time)])
|
||
count_row = 1
|
||
items.each do |exercise|
|
||
sheet1[count_row,0]=exercise.user.id
|
||
sheet1[count_row,1] = exercise.user.lastname.to_s + exercise.user.firstname.to_s
|
||
sheet1[count_row,2] = exercise.user.login
|
||
sheet1[count_row,3] = exercise.user.user_extensions.student_id
|
||
sheet1[count_row,4] = exercise.user.mail
|
||
sheet1[count_row,5] = exercise.objective_score == -1 ? "0.0" : format("%.1f",exercise.objective_score)
|
||
sheet1[count_row,6] = exercise.subjective_score == -1 ? "0.0" : format("%.1f",exercise.subjective_score)
|
||
sheet1[count_row,7] = exercise.score
|
||
sheet1[count_row,8] = exercise.commit_status == 0 ? l(:excel_no_answer) : format_time(exercise.created_at)
|
||
count_row += 1
|
||
end
|
||
book.write xls_report
|
||
xls_report.string
|
||
end
|
||
|
||
#根据条件过滤作业结果
|
||
def search_exercise_member exercises,name
|
||
if name == ""
|
||
select_exercises = exercises
|
||
else
|
||
name = name.downcase
|
||
select_exercises = exercises.select{ |exercise|
|
||
exercise.user[:login].to_s.downcase.include?(name) || exercise.user.user_extensions[:student_id].to_s.downcase.include?(name) || (exercise.user[:lastname].to_s.downcase + exercise.user[:firstname].to_s.downcase).include?(name)
|
||
}
|
||
end
|
||
select_exercises
|
||
end
|
||
|
||
# ExerciseUser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_exercise_user exercise_id,user_id
|
||
eu = ExerciseUser.find_by_exercise_id_and_user_id(exercise_id,user_id)
|
||
if eu.nil?
|
||
eu = ExerciseUser.new
|
||
end
|
||
eu
|
||
end
|
||
|
||
# 获取当前学生回答问题的答案
|
||
def get_user_answer(question,user)
|
||
# user_answer = ExerciseAnswer.where("user_id=? and exercise_question_id=?", user.id, question.id).first
|
||
user_answer = question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{user.id}")
|
||
user_answer
|
||
end
|
||
|
||
# 获取问题的标准答案
|
||
def get_user_standard_answer(question,user)
|
||
if question.question_type == 3
|
||
standard_answer =[]
|
||
question.exercise_standard_answers.each do |answer|
|
||
standard_answer << answer.answer_text
|
||
end
|
||
else
|
||
standard_answer = question.exercise_standard_answers.first
|
||
end
|
||
standard_answer
|
||
end
|
||
# 是否完成了答题
|
||
def get_complete_question(exercise,user)
|
||
questions = exercise.exercise_questions
|
||
complete_question = []
|
||
questions.each do |question|
|
||
answers = get_user_answer(question,user)
|
||
if !(answers.nil? || answers.count < 1)
|
||
complete_question << question
|
||
end
|
||
end
|
||
complete_question
|
||
end
|
||
|
||
# 获取答题百分比
|
||
def get_percent exercise,user
|
||
complete_count = get_complete_question(exercise,user).count
|
||
if exercise.exercise_questions.count == 0
|
||
return 0
|
||
else
|
||
return (complete_count.to_f / exercise.exercise_questions.count.to_f)*100
|
||
end
|
||
end
|
||
|
||
def remove_invalid_exercise(course)
|
||
exercises = course.exercises.where("exercise_name=?","")
|
||
unless exercises.empty?
|
||
exercises.each do |exercise|
|
||
if exercise.exercise_questions.empty?
|
||
exercise.destroy
|
||
end
|
||
end
|
||
end
|
||
end
|
||
|
||
def find_exercise_and_course
|
||
@exercise = Exercise.find params[:id]
|
||
@course = Course.find @exercise.course_id
|
||
rescue Exception => e
|
||
render_404
|
||
end
|
||
|
||
def find_course
|
||
@course = Course.find params[:course_id]
|
||
rescue Exception => e
|
||
render_404
|
||
end
|
||
end |