810 lines
33 KiB
Ruby
810 lines
33 KiB
Ruby
class ExerciseController < ApplicationController
|
||
layout "base_courses"
|
||
|
||
before_filter :find_exercise_and_course, :only => [:create_exercise_question, :edit, :update, :show, :destroy,
|
||
:commit_exercise, :commit_answer,:publish_exercise,:republish_exercise,
|
||
:show_student_result,:student_exercise_list]
|
||
before_filter :find_course, :only => [:index,:new,:create]
|
||
include ExerciseHelper
|
||
|
||
def index
|
||
publish_exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
|
||
publish_exercises.each do |exercise|
|
||
exercise.update_column('exercise_status', 2)
|
||
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
|
||
end
|
||
|
||
if @course.is_public == 0 && !(User.current.member_of_course?(@course)||User.current.admin?)
|
||
render_403
|
||
return
|
||
end
|
||
remove_invalid_exercise(@course)
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course)
|
||
if @is_teacher || User.current.admin?
|
||
exercises = @course.exercises.order("created_at asc")
|
||
else
|
||
exercises = @course.exercises.where("exercise_status <> 1").order("created_at asc")
|
||
end
|
||
@exercises = paginateHelper exercises,20 #分页
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.html
|
||
end
|
||
end
|
||
|
||
def show
|
||
publish_exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
|
||
publish_exercises.each do |exercise|
|
||
exercise.update_column('exercise_status', 2)
|
||
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
|
||
end
|
||
|
||
unless User.current.member_of_course?(@course) || User.current.admin?
|
||
render_403
|
||
return
|
||
end
|
||
@exercise = Exercise.find params[:id]
|
||
@exercise.course_messages.each do |message|
|
||
if User.current.id == message.user_id && message.viewed == 0
|
||
message.update_attributes(:viewed => true) if message.viewed == 0
|
||
end
|
||
end
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
|
||
exercise_end = @exercise.end_time > Time.now
|
||
if @exercise.time == -1
|
||
@can_edit_excercise = exercise_end
|
||
else
|
||
@can_edit_excercise = !has_commit_exercise?(@exercise.id,User.current.id)&& exercise_end
|
||
end
|
||
unless @is_teacher
|
||
@exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
|
||
if @exercise_user.nil?
|
||
eu = ExerciseUser.create(:user_id => User.current.id, :exercise_id => @exercise.id, :start_at => Time.now, :status => false)
|
||
@exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
|
||
end
|
||
score = calculate_student_score(@exercise, User.current)
|
||
@exercise_user.update_attributes(:score => score)
|
||
end
|
||
# @percent = get_percent(@exercise,User.current)
|
||
@exercise_questions = @exercise.exercise_questions
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.html {render :layout => 'base_courses'}
|
||
end
|
||
#end
|
||
end
|
||
|
||
def new
|
||
option = {
|
||
:exercise_name => "",
|
||
:course_id => @course.id,
|
||
:exercise_status => 1,
|
||
:user_id => User.current.id,
|
||
:time => "",
|
||
:end_time => "",
|
||
:publish_time => "",
|
||
:exercise_description => "",
|
||
:show_result => 1
|
||
}
|
||
@exercise = Exercise.create option
|
||
if @exercise
|
||
redirect_to edit_exercise_url @exercise.id
|
||
end
|
||
end
|
||
|
||
def create
|
||
if params[:exercise]
|
||
exercise = Exercise.find(params[:exercise_id]) if params[:exercise_id]
|
||
exercise ||= Exercise.new
|
||
exercise.exercise_name = params[:exercise][:exercise_name]
|
||
exercise.exercise_description = params[:exercise][:exercise_description]
|
||
exercise.end_time = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
|
||
exercise.publish_time = params[:exercise][:publish_time]
|
||
exercise.user_id = User.current.id
|
||
exercise.time = params[:exercise][:time]
|
||
exercise.course_id = params[:course_id]
|
||
exercise.exercise_status = 1
|
||
if exercise.save
|
||
@exercise = exercise
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
end
|
||
end
|
||
|
||
def edit
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.html{render :layout => 'base_courses'}
|
||
end
|
||
end
|
||
|
||
def update
|
||
@exercise.exercise_name = params[:exercise][:exercise_name]
|
||
@exercise.exercise_description = params[:exercise][:exercise_description]
|
||
@exercise.time = params[:exercise][:time].blank? ? -1 : params[:exercise][:time]
|
||
@exercise.end_time = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
|
||
@exercise.publish_time = params[:exercise][:publish_time]
|
||
@exercise.show_result = params[:exercise][:show_result].blank? ? 1 : params[:exercise][:show_result]
|
||
if @exercise.save
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
else
|
||
render_404
|
||
end
|
||
end
|
||
|
||
def destroy
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
|
||
if @exercise && @exercise.destroy
|
||
if @is_teacher
|
||
exercises = Exercise.where("course_id =?", @course.id)
|
||
else
|
||
exercises = Exercise.where("course_id =? and exercise_status =?", @course.id, 2)
|
||
end
|
||
@exercises = paginateHelper exercises,20 #分页
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
end
|
||
|
||
# 统计结果
|
||
def statistics_result
|
||
@exercise = Exercise.find(params[:id])
|
||
exercise_questions = @exercise.exercise_questions
|
||
@exercise_questions = paginateHelper exercise_questions, 5
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
format.html{render :layout => 'base_courses'}
|
||
end
|
||
end
|
||
|
||
# 添加题目
|
||
# question_type 1：单选 2：多选 3：填空题
|
||
def create_exercise_question
|
||
question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
|
||
option = {
|
||
:question_title => question_title,
|
||
:question_type => params[:question_type] || 1,
|
||
:question_number => params[:question_type] == "1"? @exercise.exercise_questions.where("question_type = 1").count + 1 :
|
||
(params[:question_type] == "2" ? (@exercise.exercise_questions.where("question_type = 2").count + 1) :
|
||
@exercise.exercise_questions.where("question_type = 3").count + 1),
|
||
:question_score => params[:question_score]
|
||
}
|
||
@exercise_questions = @exercise.exercise_questions.new option
|
||
# params[:question_answer] 题目选项
|
||
if params[:question_answer]
|
||
for i in 1..params[:question_answer].count
|
||
answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
|
||
question_option = {
|
||
:choice_position => i,
|
||
:choice_text => answer
|
||
}
|
||
@exercise_questions.exercise_choices.new question_option
|
||
end
|
||
end
|
||
# 如果是插入的话，那么从插入的这个id以后的question_num都将要+1
|
||
if params[:quest_id]
|
||
@is_insert = true
|
||
if @exercise_questions.question_type == 1
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 1).update_all(" question_number = question_number + 1")
|
||
#@exercise.exercise_questions.where("question_number > #{params[:quest_num].to_i} and question_type == 1").update_all(" question_number = question_number + 1")
|
||
elsif @exercise_questions.question_type == 2
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 2).update_all(" question_number = question_number + 1")
|
||
else
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 3).update_all(" question_number = question_number + 1")
|
||
end
|
||
# @exercise_question_num = params[:quest_num].to_i
|
||
@exercise_questions.question_number = params[:quest_num].to_i + 1
|
||
end
|
||
if @exercise_questions.save
|
||
# params[:exercise_choice] 标准答案参数
|
||
# 问答题标准答案有三个，单独处理
|
||
if @exercise_questions.question_type == 3
|
||
for i in 1..params[:exercise_choice].count
|
||
standart_answer = ExerciseStandardAnswer.new
|
||
standart_answer.exercise_question_id = @exercise_questions.id
|
||
standart_answer.answer_text = params[:exercise_choice].values[i-1]
|
||
standart_answer.save
|
||
end
|
||
else
|
||
standart_answer = ExerciseStandardAnswer.new
|
||
standart_answer.exercise_question_id = @exercise_questions.id
|
||
if @exercise_questions.question_type == 1
|
||
standart_answer.exercise_choice_id = sigle_selection_standard_answer(params[:exercise_choice])
|
||
else
|
||
standart_answer.exercise_choice_id = multiselect_standard_answer(params[:exercise_choice])
|
||
end
|
||
standart_answer.save
|
||
end
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
|
||
end
|
||
|
||
# 修改题目
|
||
# params[:exercise_question] The id of exercise_question
|
||
# params[:question_answer] eg:A、B、C选项
|
||
def update_exercise_question
|
||
@exercise_question = ExerciseQuestion.find params[:exercise_question]
|
||
@exercise_question.question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
|
||
@exercise_question.question_score = params[:question_score]
|
||
# 处理选项:如果选了某个选项，那么则要删除之前的选项
|
||
if params[:question_answer]
|
||
@exercise_question.exercise_choices.each do |answer|
|
||
answer.destroy unless params[:question_answer].keys.include? answer.id.to_s
|
||
end
|
||
for i in 1..params[:question_answer].count
|
||
question = @exercise_question.exercise_choices.find_by_id params[:question_answer].keys[i-1]
|
||
answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
|
||
if question
|
||
question.choice_position = i
|
||
question.choice_text = answer
|
||
question.save
|
||
else
|
||
question_option = {
|
||
:choice_position => i,
|
||
:choice_text => answer
|
||
}
|
||
@exercise_question.exercise_choices.new question_option
|
||
end
|
||
end
|
||
end
|
||
# 更新标准答案
|
||
if params[:exercise_choice]
|
||
if @exercise_question.question_type == 3
|
||
# 删除不合理的选项
|
||
@exercise_question.exercise_standard_answers.each do |answer|
|
||
answer.destroy unless params[:exercise_choice].keys.include? answer.id.to_s
|
||
end
|
||
for i in 1..params[:exercise_choice].count
|
||
# 找到对应的标准答案
|
||
question_standart = @exercise_question.exercise_standard_answers.find_by_id params[:exercise_choice].keys[i-1]
|
||
# 标准答案值
|
||
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]
|
||
if question_standart
|
||
question_standart.answer_text = answer_standart
|
||
question_standart.save
|
||
else
|
||
standart_answer_option = {
|
||
:answer_text => answer_standart
|
||
}
|
||
@exercise_question.exercise_standard_answers.new standart_answer_option
|
||
end
|
||
end
|
||
else
|
||
answer_standart = @exercise_question.exercise_standard_answers.first
|
||
answer_standart.exercise_choice_id = @exercise_question.question_type == 1 ? sigle_selection_standard_answer(params[:exercise_choice]) : multiselect_standard_answer(params[:exercise_choice])
|
||
answer_standart.save
|
||
end
|
||
@exercise_question.save
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
end
|
||
end
|
||
|
||
# 删除题目
|
||
def delete_exercise_question
|
||
@exercise_question = ExerciseQuestion.find params[:exercise_question]
|
||
@exercise = @exercise_question.exercise
|
||
|
||
if @exercise_question.question_type == 1
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 1).update_all(" question_number = question_number - 1")
|
||
#@exercise.exercise_questions.where("question_number > #{params[:quest_num].to_i} and question_type == 1").update_all(" question_number = question_number + 1")
|
||
elsif @exercise_question.question_type == 2
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 2).update_all(" question_number = question_number - 1")
|
||
else
|
||
ExerciseQuestion.where("question_number>? and question_type=?",params[:quest_num].to_i, 3).update_all(" question_number = question_number - 1")
|
||
end
|
||
# @exercise_question_num = params[:quest_num].to_i
|
||
# @exercise_questions.question_number = params[:quest_num].to_i - 1
|
||
#
|
||
# exercise_questions = @exercise.exercise_questions.where("question_number > #{@exercise_question.question_number}")
|
||
# exercise_questions.each do |question|
|
||
# question.question_number -= 1
|
||
# question.save
|
||
# end
|
||
if @exercise_question && @exercise_question.destroy
|
||
respond_to do |format|
|
||
format.js
|
||
end
|
||
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
|
||
@exercise.course.members.each do |m|
|
||
@exercise.course_messages << CourseMessage.create(:user_id =>m.user_id, :course_id => @exercise.course.id, :viewed => false,:status=>2)
|
||
end
|
||
#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
|
||
@is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
|
||
@all_exercises = @course.exercises.where("exercise_status > 1").order("created_at desc")
|
||
student_id = @course.student.blank? ? "(-1)" : "(" + @course.student.map{|student| student.student_id}.join(",") + ")"
|
||
@exercise_count = @exercise.exercise_users.where("score is not NULL and user_id in #{student_id}").count
|
||
if @is_teacher || (!@exercise.exercise_users.where("user_id = #{User.current.id} and user_id in #{student_id}").empty? && @exercise.end_time <= Time.now)
|
||
@exercise_users_list = @exercise.exercise_users.where("score is not NULL and user_id in #{student_id}")
|
||
@show_all = true;
|
||
elsif !@exercise.exercise_users.where("user_id = #{User.current.id} and user_id in #{student_id}").empty? && @exercise.end_time > Time.now
|
||
@exercise_users_list = @exercise.exercise_users.where("user_id = ? and score is not NULL and user_id in #{student_id}",User.current.id)
|
||
else
|
||
@exercise_users_list = []
|
||
end
|
||
@left_nav_type = 8
|
||
respond_to do |format|
|
||
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
|
||
@percent = get_percent(@exercise,User.current)
|
||
render :json => {:text => "ok",:complete => complete,:percent => format("%.2f" ,@percent)}
|
||
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
|
||
@percent = get_percent(@exercise, User.current)
|
||
render :json => {:text => "false" ,:percent => format("%.2f" , @percent)}
|
||
else
|
||
render :json => {:text => "failure"}
|
||
end
|
||
end
|
||
elsif eq.question_type == 3
|
||
#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(:show_result => params[:show_result])
|
||
@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
|
||
@exercise.update_attributes(:show_result => params[:show_result])
|
||
redirect_to exercise_url(@exercise)
|
||
return
|
||
end
|
||
@exercise.update_attributes(:show_result => params[:show_result])
|
||
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)
|
||
# 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
|
||
|
||
#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
|
||
|
||
#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_class),l(:excel_f_score),l(:excel_commit_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] = ""
|
||
sheet1[count_row,6] = exercise.score
|
||
sheet1[count_row,7] = format_time(exercise.created_at)
|
||
count_row += 1
|
||
end
|
||
book.write xls_report
|
||
xls_report.string
|
||
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 |