diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 408f95945..5b555cf4c 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -1342,1676 +1342,6 @@ class ExercisesController < ApplicationController
     else
       @question_result_hash = ques_result_all.sort_by {|s| s[:percent]}
     end
-    class ExercisesController < ApplicationController
-      before_action :require_login, :check_auth, except: [:index]
-      before_action :find_course, only: [:index, :new, :create, :my_exercises, :public_exercises, :set_public, :destroys,
-                                         :join_exercise_banks, :publish_modal, :publish, :end_modal, :end_exercise] #需要有课堂id参数的
-      before_action :get_exercise, except: [:index, :new, :create, :my_exercises, :public_exercises, :set_public, :destroys,
-                                            :join_exercise_banks, :publish_modal, :publish, :end_modal, :end_exercise]
-      before_action :user_course_identity
-      before_action :is_course_teacher, except: [:index, :start_answer, :exercise_setting, :commit_exercise, :exercise_lists, :review_exercise,
-                                                 :exercise_result, :common_header, :cancel_exercise, :begin_commit]
-      before_action :get_left_banner_id, only: [:common_header, :start_answer, :review_exercise, :index, :new, :edit]
-      before_action :validates_exercise_params, only: [:create, :update]
-      before_action :get_exercise_question_counts, only: [:show, :edit, :start_answer, :review_exercise, :blank_exercise, :export_exercise]
-      before_action :validate_publish_time, only: [:commit_setting] #提交设置时，需判断时间是否符合
-      before_action :check_course_public, only: [:set_public]
-      before_action :check_user_on_answer, only: [:show, :start_answer, :exercise_lists] #判断当前用户在试卷的权限/老师是否属于分班的权限
-      before_action :only_student_in, only: [:start_answer]
-      before_action :check_user_id_start_answer, only: [:start_answer, :review_exercise]
-      # before_action :commit_user_exercise,only: [:start_answer,:exercise_lists,:review_exercise]   #已有定时的任务
-      before_action :check_exercise_time, only: [:commit_exercise] #提交试卷时，判断时间是否超过
-      before_action :check_exercise_status, only: [:redo_modal, :redo_exercise]
-      before_action :check_exercise_is_end, only: [:review_exercise]
-      before_action :check_exercise_public, only: [:exercise_result] #试卷是否为公开
-      before_action :commit_shixun_present, only: [:commit_shixun]
-      include ExportHelper
-      include ExercisesHelper
-
-      # model validation error
-      rescue_from ActiveRecord::RecordInvalid do |ex|
-        render_error(ex.record.errors.full_messages.join(','))
-      end
-      # form validation error
-      rescue_from ActiveModel::ValidationError do |ex|
-        render_error(ex.model.errors.full_messages.join(','))
-      end
-
-      def index
-        begin
-          # 按发布时间或创建时间排序
-          @exercises_all = @course.exercises
-          member_show_exercises = @exercises_all.is_exercise_published #已发布的或已截止的试卷
-          @current_user_ = current_user
-
-          # 课堂的学生人数
-          @course_all_members = @course.students #当前课堂的全部学生
-          @current_student = @course_all_members.course_find_by_ids("user_id", current_user.id) #当前用户是否为课堂的学生
-
-          # exercises的不同用户群体的显示
-          if @user_course_identity < Course::STUDENT # @is_teacher_or 1为老师/管理员/助教
-            @is_teacher_or = 1
-            @exercises = @exercises_all #老师能看到全部的试卷，不管是已发布的/未发布的/已截止的/统一设置的/私有设置的（看到内容不同）
-          elsif @user_course_identity == Course::STUDENT # 2为课堂成员，能看到统一设置的和自己班级的
-            @is_teacher_or = 2
-            @member_group_id = @current_student.first.try(:course_group_id).to_i # 成员的分班id，默认为0
-            if @member_group_id == 0 #表示是课堂的未分班成员,只能查看统一设置的试卷（已发布的/已截止的）
-              @exercises = member_show_exercises.exists? ? member_show_exercises.unified_setting : []
-            else #已分班级的成员，可以查看统一设置和单独设置（试卷是发布在该班级）试卷
-              # 已发布 当前用户班级分组的 试卷id
-              publish_exercise_ids = @course.exercise_group_settings.exercise_group_published.where("course_group_id = #{@member_group_id}").pluck(:exercise_id)
-              @exercises = member_show_exercises.unified_setting.or(member_show_exercises.where(id: publish_exercise_ids))
-            end
-          else #用户未登陆或不是该课堂成员,仅显示统一设置的（已发布的/已截止的），如有公开，则不显示锁，不公开，则显示锁
-            @is_teacher_or = 0
-            @exercises = member_show_exercises.unified_setting
-          end
-
-          if @exercises.size > 0
-            if params[:type].present?
-              choose_type = params[:type].to_i
-              ex_setting_ids = []
-              if @is_teacher_or != 2
-                @exercises = @exercises.where("exercise_status = #{choose_type}")
-              else
-                case choose_type
-                when 1
-                  ex_setting_ids = @course.exercise_group_settings.where("course_group_id = #{@member_group_id}").exercise_group_not_published.pluck(:exercise_id)
-                when 2
-                  ex_setting_ids = @course.exercise_group_settings.where("course_group_id = #{@member_group_id}")
-                                     .where("publish_time is not null and publish_time <= ? and end_time > ?", Time.now, Time.now).pluck(:exercise_id)
-                when 3
-                  ex_setting_ids = @course.exercise_group_settings.where("course_group_id = #{@member_group_id}").exercise_group_ended.pluck(:exercise_id)
-                end
-                unified_setting_ids = @exercises.unified_setting.where("exercise_status = #{choose_type}").pluck(:id)
-                ex_ids = (ex_setting_ids + unified_setting_ids).uniq
-                @exercises = @exercises.where(id: ex_ids)
-              end
-            end
-
-            if params[:search].present?
-              search_type = params[:search].to_s.strip
-              @exercises = @exercises.exercise_search(search_type)
-            end
-
-            @exercises_select_count = @exercises.size # 全部页面，需返回
-            @exercises = @exercises.distinct.order("IF(ISNULL(publish_time),0,1), publish_time DESC,created_at DESC") #出现错误
-
-            # 分页
-            @page = params[:page] || 1
-            @limit = params[:limit] || 15
-            @exercises = @exercises.page(@page).per(@limit)
-            @exercises = @exercises&.includes(:published_settings)
-          else
-            @exercises = []
-          end
-
-          @course_all_members_count = @course_all_members.size #当前课堂的学生数
-          @exercises_count = @exercises_all.size # 全部页面，需返回
-          @exercises_unpublish_counts = @exercises_all.exercise_by_status(1).size #未发布的试卷数
-          @exercises_published_counts = @exercises_count - @exercises_unpublish_counts # 已发布的试卷数,包含已截止的
-
-        rescue Exception => e
-          uid_logger_error(e.message)
-          tip_exception(e.message)
-          raise ActiveRecord::Rollback
-        end
-      end
-
-      def new
-        ActiveRecord::Base.transaction do
-          begin
-            @exercise = Exercise.new
-          rescue Exception => e
-            uid_logger_error(e.message)
-            tip_exception("试卷创建失败！")
-            raise ActiveRecord::Rollback
-          end
-        end
-      end
-
-      def create
-        ActiveRecord::Base.transaction do
-          ex_name = params[:exercise_name]
-          ex_desc = params[:exercise_description]
-          exercise_options = {
-            :exercise_name => ex_name,
-            :exercise_description => ex_desc,
-            :user_id => current_user.id,
-            :course_id => @course.id,
-            :time => -1,
-            :exercise_status => 1
-          }
-          @exercise = Exercise.create!(exercise_options)
-        end
-      end
-
-      #试卷的内容，及试题/答案的内容编辑
-      def edit
-        ActiveRecord::Base.transaction do
-          @exercise_questions = @exercise.exercise_questions.order("question_number ASC")
-        end
-      end
-
-      def update
-        ActiveRecord::Base.transaction do
-          ex_name = params[:exercise_name]
-          ex_desc = params[:exercise_description]
-          exercise_options = {
-            :exercise_name => ex_name,
-            :exercise_description => ex_desc,
-          }
-          @exercise.update!(exercise_options)
-          normal_status(0, "试卷更新成功！")
-        end
-      end
-
-      def show
-        ActiveRecord::Base.transaction do
-          if @user_course_identity < Course::STUDENT
-            @is_teacher_or = 1 #为老师/助教/管理员
-          else
-            @is_teacher_or = 0 #为学生
-          end
-          @exercise_questions = @exercise.exercise_questions&.includes(:exercise_choices, :exercise_shixun_challenges, :exercise_standard_answers).order("question_number ASC")
-        end
-      end
-
-      #试卷的公用头部
-      def common_header
-        ActiveRecord::Base.transaction do
-          @user_left_time = nil
-          if @user_course_identity > Course::ASSISTANT_PROFESSOR
-            @is_teacher_or = 0
-            @user_exercise_answer = @exercise.check_user_answer_status(current_user)
-            @user_commit_counts = 0
-            @user_left_time = get_exercise_left_time(@exercise, current_user)
-          else
-            @is_teacher_or = 1
-            @user_exercise_answer = 3 #教师页面
-            @user_commit_counts = @exercise.exercise_users.where(commit_status: 1).size #已提交的用户数
-          end
-          @ex_status = @exercise.get_exercise_status(current_user)
-
-          exercise_id_array = [@exercise.id]
-          @exercise_publish_count = get_user_permission_course(exercise_id_array, Exercise::PUBLISHED).size #是否存在已发布的
-          @exercise_unpublish_count = get_user_permission_course(exercise_id_array, Exercise::UNPUBLISHED).size #是否存在未发布的
-
-          if (@exercise_publish_count == 0) && (@exercise_unpublish_count == 0) #即表示没有分班
-            if @ex_status == Exercise::UNPUBLISHED
-              @exercise_unpublish_count = 1 #试卷未发布，且课堂没有分班的时候
-            elsif @ex_status == Exercise::PUBLISHED
-              @exercise_publish_count = 1 #试卷未发布，且课堂没有分班的时候
-            end
-          end
-        end
-      end
-
-      #实训题目的选用
-      def choose_shixun
-        ActiveRecord::Base.transaction do
-          search = params[:search]
-          if @user_course_identity > Course::ADMIN #当不为管理员的时候
-            user_school_id = current_user.school_id #当前用户的学校id
-            if user_school_id.present?
-              none_shixun_ids = ShixunSchool.where("school_id != #{user_school_id}").pluck(:shixun_id)
-              @publish_shixuns = Shixun.where.not(id: none_shixun_ids).unhidden
-            end
-          else
-            @publish_shixuns = Shixun.unhidden
-          end
-          if search.present?
-            @publish_shixuns = @publish_shixuns.search_by_name(search)
-          end
-
-          @shixuns = @publish_shixuns.joins(:challenges).where("challenges.st != 0").distinct
-          # 全部页面，需返回
-          @shixuns_count = @shixuns.count
-
-          # 分页
-          @page = params[:page] || 1
-          @limit = params[:limit] || 8
-
-          @shixuns = @shixuns.page(@page).per(@limit)
-        end
-      end
-
-      #确认实训的选择
-      def commit_shixun
-        ActiveRecord::Base.transaction do
-          @shixun_challenges = @shixun.challenges
-          @shixun_challenges_count = @shixun_challenges.size
-        end
-      end
-
-      # 首页批量或单独删除
-      def destroys
-        ActiveRecord::Base.transaction do
-          check_ids = Exercise.where(id: params[:check_ids])
-          check_ids.destroy_all
-          normal_status(0, "试卷已删除成功！")
-        end
-      end
-
-      # 设为公开
-      def set_public
-        ActiveRecord::Base.transaction do
-          check_ids = Exercise.where(id: params[:check_ids])
-          check_ids.each do |exercise|
-            exercise.update!(is_public: true)
-          end
-          normal_status(0, "试卷已设为公开！")
-        end
-      end
-
-      ## 加入题库
-      def join_exercise_banks
-        ActiveRecord::Base.transaction do
-          check_ids = Exercise.where(id: params[:check_ids])
-          check_ids.each do |exercise|
-            current_ex_bank = current_user.exercise_banks.find_by_container(exercise.id, "Exercise")&.first
-            if current_ex_bank.present? #当前用户的选择试卷是否已加入习题库，存在则更新习题库和问题库，否则新建习题库和问题库
-              ex_params = {
-                :name => exercise.exercise_name,
-                :description => exercise.exercise_description,
-                :course_list_id => exercise.course.try(:course_list_id)
-              }
-              current_ex_bank.update!(ex_params)
-              # question_bank = QuestionBank.ques_by_container(current_ex_bank.id,current_ex_bank.container_type).first  #该习题库是否存在于问题库里
-              # ques_params = {
-              #     :name => current_ex_bank.name,
-              #     :course_list_id => current_ex_bank.course_list_id
-              # }
-              # question_bank.update_attributes(ques_params) if question_bank.present?
-              current_ex_bank.exercise_bank_questions.destroy_all # 更新后，习题库的问题全部删除，后续重新再建
-            else
-              ex_params = {
-                :name => exercise.exercise_name,
-                :description => exercise.exercise_description,
-                :user_id => current_user.id,
-                :is_public => 0,
-                :course_list_id => exercise.course.try(:course_list_id),
-                :container_id => exercise.id,
-                :container_type => "Exercise",
-                :quotes => 1
-              }
-              current_ex_bank = ExerciseBank.new ex_params
-              current_ex_bank.save! #如果习题库保存成功，则会创建问题库question_bank
-              # if current_ex_bank.save
-              #   ques_params = {
-              #       :name => current_ex_bank.name,
-              #       :container_id => current_ex_bank.id,
-              #       :container_type => current_ex_bank.container_type,
-              #       :quotes => current_ex_bank.quotes,
-              #       :user_id => current_ex_bank.user_id,
-              #       :is_public => current_ex_bank.is_public,
-              #       :course_list_id => current_ex_bank.course_list_id
-              #   }
-              #   question_bank = QuestionBank.new ques_params
-              #   question_bank.save
-              # end
-              exercise.update!(exercise_bank_id: current_ex_bank.id)
-            end
-            # 试卷的问题的输入
-            exercise.exercise_questions.each do |q|
-              option = {
-                :question_title => q.question_title,
-                :question_type => q.question_type,
-                :question_number => q.question_number,
-                :question_score => q.question_score,
-                :shixun_id => q.shixun_id,
-                :shixun_name => q.shixun_name
-              }
-              exercise_bank_question = current_ex_bank.exercise_bank_questions.new option
-              exercise_bank_question.save!
-              ## 试卷选项的输入
-              if q.question_type != Exercise::PRACTICAL #不为实训题时,试卷选项加入试题答案库
-                ex_choices = q.exercise_choices
-                ex_standard = q.exercise_standard_answers
-                ex_choices.each do |c|
-                  choice_option = {
-                    :choice_position => c.choice_position,
-                    :choice_text => c.choice_text
-                  }
-                  ex_bank_choice = exercise_bank_question.exercise_bank_choices.new choice_option
-                  ex_bank_choice.save!
-                end
-                ex_standard.each do |s|
-                  ex_stand = {
-                    :exercise_bank_choice_id => s.exercise_choice_id,
-                    :answer_text => s.answer_text
-                  }
-                  ex_stand_bank = exercise_bank_question.exercise_bank_standard_answers.new ex_stand
-                  ex_stand_bank.save!
-                end
-              else #当为实训题时
-                shixun_challenges = q.exercise_shixun_challenges
-                shixun_challenges.each do |c|
-                  challenge_option = {
-                    :position => c.position,
-                    :challenge_id => c.challenge_id,
-                    :shixun_id => q.shixun_id,
-                    :question_score => c.question_score
-                  }
-                  shixun_challenge_bank = exercise_bank_question.exercise_bank_shixun_challenges.new challenge_option
-                  shixun_challenge_bank.save!
-                end
-              end
-            end
-            current_ex_bank.save!
-          end
-          normal_status(0, "题库更新成功！")
-        end
-      end
-
-      #试卷的设置页面
-      def exercise_setting
-        ActiveRecord::Base.transaction do
-          @user_permission = 2
-          @user_course_groups = @course.teacher_group(current_user.id) #当前老师的分班
-          @being_setting_course_ids = @exercise.common_published_ids(current_user.id) #当前用户已发布的班级的id
-          @user_published_setting = @exercise.exercise_group_settings
-                                      .find_in_exercise_group("course_group_id", @being_setting_course_ids) #当前用户已发布班级的试卷设置
-          exercise_ids = [@exercise.id]
-          @exercise_publish_count = get_user_permission_course(exercise_ids, Exercise::PUBLISHED).count #判断当前用户是否有试卷已发布的分班，用于显示立即截止/撤销发布
-          @exercise_unpublish_count = get_user_permission_course(exercise_ids, Exercise::UNPUBLISHED).count #判断当前用户是否有试卷未发布的分班，用户显示立即发布
-          @exercise_users_count = @exercise.exercise_users.commit_exercise_by_status(1).count #判断当前试卷是否有已提交的
-          # ## 需添加发送消息的接口，稍后添加
-        end
-      end
-
-      #试卷的提交设置
-      def commit_setting
-        ActiveRecord::Base.transaction do
-          error_count = 0 # 判断循环里是否有已发布/已截止的，且时间更改了的分班。
-          # course_group_ids = @course.teacher_course_group_ids(current_user.id)  #当前老师的班级id数组
-          course_group_ids = @course.charge_group_ids(current_user) #当前老师的班级id数组
-
-          exercise_status = @exercise.get_exercise_status(current_user)
-
-          if exercise_status == Exercise::UNPUBLISHED && course_group_ids.size > 0 # 试卷未发布，且老师的分班大于1 ，才可以修改统一设置，否则按试卷默认的来处理
-            unified_setting = params[:unified_setting]
-          else
-            unified_setting = @exercise.unified_setting
-          end
-
-          show_statistic = params[:show_statistic] ? true : false
-          exercise_time = params[:time].blank? ? -1 : params[:time]
-          question_random = params[:question_random] ? true : false #问题是否随机，0为不随机，1为随机
-          choice_random = params[:choice_random] ? true : false
-          score_open = params[:score_open] ? true : false #分数是否公开
-          answer_open = params[:answer_open] ? true : false #答案是否公开
-
-          # 统一设置或者分班为0，则更新试卷，并删除试卷分组
-          if unified_setting || (course_group_ids.size == 0)
-            tip_exception("发布时间不能为空") if params[:publish_time].blank?
-            tip_exception("截止时间不能为空") if params[:end_time].blank?
-            tip_exception("截止时间不能早于发布时间") if params[:publish_time].to_time > params[:end_time].to_time
-            tip_exception("截止时间不能晚于课堂结束时间（#{@course.end_date.end_of_day.strftime("%Y-%m-%d %H:%M")}）") if @course.end_date.present? && params[:end_time].to_time > @course.end_date.end_of_day
-
-            params_publish_time = params[:publish_time].to_time
-            params_end_time = params[:end_time].to_time
-
-            if (exercise_status != Exercise::UNPUBLISHED) && (@exercise.publish_time != params_publish_time)
-              normal_status(-1, "已发布/已截止,不允许修改发布时间")
-            elsif params_publish_time.present? && params_end_time.present? && params_end_time < params_publish_time
-              normal_status(-1, "截止时间不能小于发布时间")
-            else
-              #发布时间小于当前时间，则试卷显示为未发布,当截止时间大于当前时间，则显示为已截止
-              exercise_status_n = set_exercise_status(params_publish_time, params_end_time)
-              exercise_params = {
-                :unified_setting => unified_setting,
-                :show_statistic => show_statistic,
-                :time => exercise_time,
-                :question_random => question_random,
-                :choice_random => choice_random,
-                :score_open => score_open,
-                :answer_open => answer_open,
-                :exercise_status => exercise_status_n,
-                :publish_time => params_publish_time,
-                :end_time => params_end_time
-              }
-              @exercise.update!(exercise_params)
-              @exercise.exercise_group_settings.destroy_all
-              normal_status(0, "试卷设置成功！")
-            end
-          else
-            params_times = params[:publish_time_groups] #分班返回的json数组{"publish_time_groups":[{"course_group_id":"1","publish_time":"xx","end_time":"xxx"}]}
-            exercise_groups = @exercise.exercise_group_settings.find_in_exercise_group("course_id", @course.id) #试卷的全部分班信息
-            exercise_groups_ids = exercise_groups.pluck(:course_group_id) #问卷的全部分班id
-            total_common = params_times.map {|k| k[:course_group_id]}.sum.uniq #传入的所有分组的分班id
-            total_common_group = exercise_groups_ids & total_common #传入的分班与问卷已存在的分班的交集
-            old_exercise_groups = exercise_groups_ids - total_common_group #后来传入的分班里，没有了的班级，即需要删除
-
-            params_times.each do |t|
-              tip_exception("发布时间不能为空") if t[:publish_time].blank?
-              tip_exception("截止时间不能为空") if t[:end_time].blank?
-              tip_exception("截止时间不能早于发布时间") if t[:publish_time].to_time > t[:end_time].to_time
-              tip_exception("截止时间不能晚于课堂结束时间（#{@course.end_date.end_of_day.strftime("%Y-%m-%d %H:%M")}）") if @course.end_date.present? && t[:end_time].to_time > @course.end_date.end_of_day
-
-              course_id = t[:course_group_id]
-              exercise_publish_time = t[:publish_time].to_time
-              exercise_end_time = t[:end_time].to_time
-
-              exercise_group = exercise_groups.find_in_exercise_group("course_group_id", course_id) #判断该分班是否存在
-              if exercise_group.present? && (exercise_group.first.publish_time < Time.now) && (exercise_publish_time != exercise_group.first.publish_time)
-                error_count += 1
-              end
-              if exercise_group.present? && (exercise_group.first.publish_time < Time.now && exercise_group.first.end_time > Time.now) && (exercise_end_time < Time.now)
-                error_count += 1
-              end
-              if error_count == 0
-                common_group = exercise_groups_ids & course_id #传入的班级与问卷已存在的班级的交集，即表示已有分班的
-                new_group_ids = course_id - common_group #新传入的班级id
-                if common_group.count > 0 #判断试卷的分班设置是否存在，存在则更新，负责则新建
-                  exercise_group_sets = exercise_groups.find_in_exercise_group("course_group_id", common_group)
-                  exercise_group_sets.each do |the_group_setting|
-                    ex_group_params = {
-                      :publish_time => exercise_publish_time,
-                      :end_time => exercise_end_time
-                    }
-
-                    the_group_setting_status = set_exercise_status(the_group_setting.publish_time, the_group_setting.end_time)
-                    if the_group_setting_status == 2
-                      ex_group_params = {
-                        :publish_time => the_group_setting.publish_time,
-                        :end_time => exercise_end_time < Time.now ? the_group_setting.end_time : exercise_end_time
-                      }
-                    elsif the_group_setting_status == 3
-                      ex_group_params = {
-                        :publish_time => the_group_setting.publish_time,
-                        :end_time => exercise_end_time
-                      }
-                    end
-                    the_group_setting.update!(ex_group_params)
-                  end
-                end
-                if new_group_ids.size > 0
-                  new_group_ids.each do |c|
-                    exercise_group_params = {
-                      :exercise_id => @exercise.id,
-                      :course_group_id => c,
-                      :course_id => @course.id,
-                      :publish_time => exercise_publish_time,
-                      :end_time => exercise_end_time
-                    }
-                    new_exercise_group = ExerciseGroupSetting.new(exercise_group_params)
-                    new_exercise_group.save!
-                  end
-                end
-              end
-            end
-
-            if error_count > 0
-              error_count == 0
-              normal_status(-1, "试卷发布/截止时间不能小于当前时间")
-            else
-              # 未发布的分班设置才能删除
-              if old_exercise_groups.size > 0
-                old_all_ex_groups = exercise_groups.find_in_exercise_group("course_group_id", old_exercise_groups).exercise_group_not_published
-                old_all_ex_groups.destroy_all
-              end
-              #试卷更新为exercise_group_setting的发布时间最小，截止时间最大
-              e_time_present = exercise_groups.end_time_no_null.map(&:end_time)
-              p_time_present = exercise_groups.publish_time_no_null.map(&:publish_time)
-              e_time = e_time_present.size > 0 ? e_time_present.max : nil
-              p_time = p_time_present.size > 0 ? p_time_present.min : nil
-              exercise_status = 1
-              if p_time.nil? #发布时间为空，则表示问卷未发布
-                exercise_status = 1
-              elsif p_time.present? && e_time.present?
-                exercise_status = set_exercise_status(p_time, e_time)
-              end
-              exercise_params = {
-                :unified_setting => unified_setting,
-                :show_statistic => show_statistic,
-                :time => exercise_time,
-                :question_random => question_random,
-                :choice_random => choice_random,
-                :score_open => score_open,
-                :answer_open => answer_open,
-                :exercise_status => exercise_status,
-                :publish_time => p_time,
-                :end_time => e_time
-              }
-              @exercise.update!(exercise_params)
-              if @exercise.exercise_status == Exercise::PUBLISHED
-                if @exercise.course_acts.size == 0
-                  @exercise.course_acts << CourseActivity.new(:user_id => @exercise.user_id, :course_id => @exercise.course_id)
-                end
-              end
-              normal_status(0, "试卷设置成功！")
-            end
-          end
-        end
-      end
-
-      # 对未提交的用户进行调分
-      def adjust_score
-        exercise_user = @exercise.exercise_users.find_by!(user_id: params[:user_id])
-        tip_exception("已提交的作品请去评阅页进行调分") if exercise_user.commit_status == 1 && exercise_user.commit_method != 5
-        if @exercise.subjective_score > 0
-          tip_exception("主观题成绩不能为空") if params[:subjective_score].blank?
-          tip_exception("主观题成绩不能小于零") if params[:subjective_score].to_f < 0
-          tip_exception("主观题成绩不能大于总分值：#{@exercise.subjective_score}分") if params[:subjective_score].to_f.round(1) > @exercise.subjective_score.round(1)
-        end
-
-        if @exercise.objective_score > 0
-          tip_exception("客观题成绩不能为空") if params[:objective_score].blank?
-          tip_exception("客观题成绩不能小于零") if params[:objective_score].to_f < 0
-          tip_exception("客观题成绩不能大于总分值：#{@exercise.objective_score}分") if params[:objective_score].to_f.round(1) > @exercise.objective_score.round(1)
-        end
-
-        ActiveRecord::Base.transaction do
-          start_at_time = exercise_user.start_at || Time.now
-          subjective_score = @exercise.subjective_score > 0 ? params[:subjective_score].to_f.round(2) : 0
-          objective_score = @exercise.objective_score > 0 ? params[:objective_score].to_f.round(2) : 0
-          score = subjective_score + objective_score
-          if exercise_user.commit_status == 1
-            exercise_user.update!(score: score, subjective_score: subjective_score, objective_score: objective_score)
-          else
-            exercise_user.update!(start_at: start_at_time, end_at: Time.now, status: 1, commit_status: 1, score: score,
-                                  subjective_score: subjective_score, objective_score: objective_score, commit_method: 5)
-          end
-
-          ExerciseUserScore.create!(exercise_id: @exercise.id, exercise_user_id: exercise_user.id,
-                                    subjective_score: subjective_score, objective_score: objective_score)
-          normal_status("操作成功")
-        end
-      end
-
-      #我的题库
-      def my_exercises
-        ActiveRecord::Base.transaction do
-          ## 我的试卷题库
-          @current_user_exercises = current_user.exercise_banks.find_by_c_type("Exercise")
-          if @current_user_exercises.present?
-
-            if params[:search].present?
-              search_type = params[:search].to_s.strip
-              @current_user_exercises = @current_user_exercises.exercise_bank_search(search_type)
-            end
-            page = params[:page] || 1
-            limit = params[:limit] || 15
-            @my_exercises_count = @current_user_exercises.size
-            @current_user_exercises = @current_user_exercises.page(page).per(limit)
-          else
-            @current_user_exercises = []
-          end
-        end
-      end
-
-      # 公共题库
-      def public_exercises
-        ActiveRecord::Base.transaction do
-          if current_user.is_certification_teacher
-            @user_certification = 1 #用户已通过认证
-            @public_exercises = ExerciseBank.find_by_c_type("Exercise").public_exercises
-            if @public_exercises.present?
-              if params[:search].present?
-                search_type = params[:search].to_s.strip
-                @public_exercises = @public_exercises.exercise_bank_search(search_type)
-              end
-              page = params[:page] || 1
-              limit = params[:limit] || 15
-              @public_exercises_count = @public_exercises.size
-              @public_exercises = @public_exercises.page(page).per(limit)
-            else
-              @public_exercises_count = 0
-              @public_exercises = []
-            end
-          else
-            @user_certification = 0 #用户未通过认证
-            @public_exercises_count = 0
-            @public_exercises = []
-          end
-        end
-      end
-
-      #立即发布的弹窗内容
-      def publish_modal
-
-        ActiveRecord::Base.transaction do
-          exercise_ids = params[:check_ids]
-          if exercise_ids.count > 0
-            @course_groups = get_user_permission_course(exercise_ids, 1)
-          else
-            @course_groups = []
-          end
-        end
-      end
-
-      # 详情页的立即发布弹框
-      def publish_groups
-        @current_user = current_user
-        # 可立即发布的分班：当前用户管理的分班去除已发布的分班
-        group_ids = @course.charge_group_ids(@current_user) - @exercise.exercise_group_settings.exercise_group_published.pluck(:course_group_id)
-        @course_groups = @course.course_groups.where(id: group_ids)
-        @group_settings = @exercise.exercise_group_settings.where(course_group_id: group_ids)
-      end
-
-      #首页批量或单独 立即发布,应是跳出弹窗，设置开始时间和截止时间。
-      def publish
-        group_ids = params[:group_ids]&.reject(&:blank?)
-        if params[:detail].blank?
-          tip_exception("缺少截止时间参数") if params[:end_time].blank?
-          tip_exception("截止时间不能早于当前时间") if params[:end_time] <= strf_time(Time.now)
-          tip_exception("截止时间不能晚于课堂结束时间（#{@course.end_date.end_of_day.strftime("%Y-%m-%d %H:%M")}）") if @course.end_date.present? && params[:end_time] > strf_time(@course.end_date.end_of_day)
-        else
-          group_end_times = params[:group_end_times].reject(&:blank?).map {|time| time.to_time}
-          tip_exception("缺少截止时间参数") if group_end_times.blank?
-          tip_exception("截止时间和分班参数的个数不一致") if group_end_times.length != group_ids.length
-          group_end_times.each do |time|
-            tip_exception("分班截止时间不能早于当前时间") if time <= Time.now
-            tip_exception("分班截止时间不能晚于课堂结束时间（#{@course.end_date.end_of_day.strftime("%Y-%m-%d %H:%M")}）") if @course.end_date.present? && time > @course.end_date.end_of_day
-          end
-        end
-
-        ActiveRecord::Base.transaction do
-          check_ids = Exercise.where(id: params[:check_ids])
-          ex_end_time = params[:end_time].blank? ? Time.at(((1.month.since.to_i) / 3600.0).ceil * 3600) : params[:end_time].to_time
-          check_ids.each do |exercise|
-            if exercise.present?
-              if exercise.unified_setting
-                ex_status = exercise.exercise_status #则为试卷的状态
-              else
-                ex_status = @course.course_groups.where(id: params[:group_ids]).size !=
-                  exercise.exercise_group_settings.where(course_group_id: params[:group_ids]).exercise_group_published.size ? 1 : 0
-              end
-              if ex_status == 1 #如果试卷存在已发布的，或者是已截止的，那么则直接跳过
-                g_course = group_ids #表示是否传入分班参数,如果传入分班的参数，那么试卷的统一设置需修改
-                tiding_group_ids = g_course
-                if g_course
-                  user_course_groups = @course.course_groups.pluck(:id)
-                  if g_course.map(&:to_i).sort == user_course_groups.sort &&
-                    ((params[:detail] && group_end_times.min == group_end_times.max) || params[:detail].blank?) # 如果是设置为全部班级，则试卷不用分组，且试卷设定为统一设置,否则则分组设置
-                    exercise.exercise_group_settings.destroy_all
-                    ex_unified = true
-                    e_time = params[:detail] ? group_end_times.max : ex_end_time
-                    tiding_group_ids = []
-                  else
-                    ex_unified = false
-                    g_course.each_with_index do |i, index|
-                      exercise_group_setting = exercise.exercise_group_settings.find_in_exercise_group("course_group_id", i).first #根据课堂分班的id，寻找试卷所在的班级
-                      group_end_time = params[:detail] ? group_end_times[index] : ex_end_time
-                      if exercise_group_setting.present? #如果该试卷分组存在，则更新，否则新建
-                        exercise_group_setting.update!(publish_time: Time.now, end_time: group_end_time)
-                      else
-                        p_course_group = {
-                          :exercise_id => exercise.id,
-                          :course_group_id => i,
-                          :course_id => exercise.course.id,
-                          :publish_time => Time.now,
-                          :end_time => group_end_time,
-                        }
-                        new_exercise_group = exercise.exercise_group_settings.new p_course_group
-                        new_exercise_group.save!
-                      end
-                    end
-                    # group_ids = params[:group_ids]
-                    e_time = exercise.exercise_group_settings.end_time_no_null.map(&:end_time).max
-                  end
-                else
-                  exercise.exercise_group_settings.destroy_all
-                  ex_unified = true
-                  e_time = ex_end_time
-                end
-
-                ex_status = set_exercise_status(Time.now, e_time)
-                exercise_params = {
-                  :publish_time => Time.now,
-                  :end_time => e_time,
-                  :exercise_status => ex_status,
-                  :unified_setting => ex_unified
-                }
-                exercise.update!(exercise_params)
-
-                if exercise.course_acts.size == 0
-                  exercise.course_acts << CourseActivity.new(:user_id => exercise.user_id, :course_id => exercise.course_id)
-                end
-                ExercisePublishNotifyJob.perform_later(exercise.id, tiding_group_ids)
-              end
-            end
-          end
-          normal_status(0, "试卷发布成功！")
-        end
-      end
-
-      #立即截止的弹窗内容
-      def end_modal
-        ActiveRecord::Base.transaction do
-          exercise_ids = params[:check_ids]
-          if exercise_ids.count > 0
-            @course_groups = get_user_permission_course(exercise_ids, 3)
-          else
-            @course_groups = []
-          end
-        end
-      end
-
-      # 首页批量或单独 立即截止，截止时间为当前时间
-      def end_exercise
-
-        ActiveRecord::Base.transaction do
-          check_ids = Exercise.where(id: params[:check_ids])
-          course_students = @course.students #课堂的全部学生数
-          check_ids.each do |exercise|
-            exercise_status = exercise.get_exercise_status(current_user)
-            if exercise_status == Exercise::PUBLISHED #跳过已截止的或未发布的
-              g_course = params[:group_ids]
-              if g_course.present?
-                teacher_course_group_ids = @course.charge_group_ids(current_user)
-                all_course_group_ids = @course.course_groups.pluck(:id)
-                if exercise.unified_setting && g_course.map(&:to_i).sort == all_course_group_ids.sort #开始为统一设置
-                  exercise.exercise_group_settings.destroy_all
-                  new_ex_status = set_exercise_status(exercise.publish_time, Time.now)
-                  exercise.update!(:end_time => Time.now, :exercise_status => new_ex_status)
-                  exercise_users = exercise.exercise_users
-                else
-                  course_members_ids = course_students.course_find_by_ids("course_group_id", g_course).pluck(:user_id).uniq #该班级的全部学生
-                  exercise_users = exercise.exercise_users.exercise_commit_users(course_members_ids) #参与答题的学生数
-                  ex_group_setting = exercise.exercise_group_settings
-                  old_exercise_groups = ex_group_setting.find_in_exercise_group("course_group_id", g_course) #试卷的分组设置
-                  left_course_groups = teacher_course_group_ids - g_course
-                  left_exercise_groups = ex_group_setting.find_in_exercise_group("course_group_id", left_course_groups)
-                  if left_exercise_groups.blank? && exercise.unified_setting
-                    if left_course_groups.size > 0 #开始为统一设置，但是立即截止为分班。则创建没有立即截止的班级的exercise_group_setting
-                      left_course_groups.each do |g|
-                        ex_group_options = {
-                          :exercise_id => exercise.id,
-                          :course_group_id => g,
-                          :course_id => @course.id,
-                          :publish_time => exercise.publish_time,
-                          :end_time => exercise.end_time
-                        }
-                        ExerciseGroupSetting.create!(ex_group_options)
-                      end
-                    end
-                  end
-                  if old_exercise_groups.present?
-                    old_exercise_groups.update_all(:end_time => Time.now)
-                  else
-                    g_course.each do |g|
-                      ex_group_options = {
-                        :exercise_id => exercise.id,
-                        :course_group_id => g,
-                        :course_id => @course.id,
-                        :publish_time => exercise.publish_time,
-                        :end_time => Time.now
-                      }
-                      ExerciseGroupSetting.create!(ex_group_options)
-                    end
-                  end
-                  new_end_time = exercise.exercise_group_settings.end_time_no_null.map(&:end_time) # 试卷结束时间不为空的
-                  new_end_time_s = new_end_time.count > 0 ? new_end_time.max : Time.now
-                  new_ex_status = set_exercise_status(exercise.publish_time, new_end_time_s)
-                  exercise.update!(:end_time => new_end_time_s, :exercise_status => new_ex_status, :unified_setting => false)
-                end
-              else
-                exercise_users = exercise.exercise_users
-                exercise.update!(:exercise_status => 3, :end_time => Time.now, :unified_setting => true)
-              end
-
-              ex_user_ids = exercise_users.pluck(:id)
-
-              EndExerciseCalculateJob.perform_later(ex_user_ids, exercise, Time.now.to_s)
-              # exercise_users.each do |user|
-              #   if user.commit_status == 0 && user.start_at.present?
-              #     objective_score = calculate_student_score(exercise,user.user)[:total_score]
-              #     user_sub_score = user.subjective_score
-              #     subjective_score = user_sub_score < 0.0 ? 0.0 : user_sub_score
-              #     total_score = objective_score + subjective_score
-              #     commit_option = {
-              #         :status => 1,
-              #         :commit_status => 1,
-              #         :end_at => Time.now,
-              #         :objective_score => objective_score,
-              #         :score => total_score,
-              #         :subjective_score => user_sub_score
-              #     }
-              #     user.update_attributes(commit_option)
-              #   end
-              # end
-            end
-          end
-          normal_status(0, "试卷截止成功！")
-        end
-      end
-
-      #学生撤销回答
-      def cancel_exercise
-        ActiveRecord::Base.transaction do
-          ex_question_ids = @exercise.exercise_questions.pluck(:id)
-          exercise_user = @exercise.exercise_users.exercise_commit_users(current_user.id).first
-          if exercise_user.present?
-            if exercise_user.commit_status == 1 && @exercise.get_exercise_status(current_user) == Exercise::PUBLISHED #用户已提交且试卷提交中
-              if @exercise.time == -1 || ((Time.now.to_i - exercise_user.start_at.to_i) < @exercise.time.to_i * 60)
-                exercise_user.update!(:score => nil, :end_at => nil, :status => nil, :commit_status => 0,
-                                      :objective_score => 0.0, :subjective_score => -1.0)
-                exercise_user.user.exercise_shixun_answers.search_shixun_answers("exercise_question_id", ex_question_ids).destroy_all
-                exercise_answers = exercise_user.user.exercise_answers.search_answer_users("exercise_question_id", ex_question_ids)
-                exercise_answers.update_all(:score => -1.0)
-                all_answer_comment = ExerciseAnswerComment.search_answer_comments("exercise_question_id", ex_question_ids)
-                                       .search_answer_comments("exercise_answer_id", exercise_answers.pluck(:id))
-                all_answer_comment.destroy_all
-                normal_status(0, "撤销回答成功")
-              else
-                normal_status(-1, "用户答题时间已到")
-              end
-            else
-              normal_status(-1, "用户未提交/试卷不是提交中")
-            end
-          else
-            normal_status(-1, "当前用户未答题")
-          end
-        end
-      end
-
-      #打回重做modal
-      def redo_modal
-        ActiveRecord::Base.transaction do
-          #搜索
-          if params[:realname].present?
-            search_name = params[:realname]
-            #搜索用户的nickname,如果存在则返回，否则继续查询用户的真实姓名或学生号
-            @exercise_users = @exercise_users.includes(:user).where("LOWER(concat(users.lastname, users.firstname)) like ?",
-                                                                    "%#{search_name}%")
-          end
-          if params[:student_id].present?
-            search_st_id = params[:student_id].to_i
-            @exercise_users = @exercise_users.includes(user: [:user_extension])
-                                .where('user_extensions.student_id like ?', "%#{search_st_id}%")
-          end
-          sort = params[:sort] ? params[:sort] : "asc"
-          @exercise_users = @exercise_users.order("score #{sort}")
-          @exercise_users_size = @exercise_users.size
-          # 分页
-          page = params[:page] || 1
-          limit = params[:limit] || 15
-          @exercise_users = @exercise_users.page(page).per(limit)
-        end
-      end
-
-      #打回重做确认
-      def redo_exercise
-        ActiveRecord::Base.transaction do
-          user_ids = params[:user_ids]
-          if user_ids.present?
-            redo_option = {
-              :score => 0.0,
-              :start_at => nil,
-              :end_at => nil,
-              :status => nil,
-              :commit_status => 0,
-              :objective_score => 0.0,
-              :subjective_score => -1.0,
-              :commit_method => 0
-            }
-            redo_exercise_users = @exercise_users.exercise_commit_users(user_ids)
-            redo_exercise_users.update_all(redo_option)
-            exercise_question_ids = @exercise.exercise_questions.pluck(:id).uniq
-            ExerciseAnswer.search_answer_users("user_id", user_ids)
-              .search_answer_users("exercise_question_id", exercise_question_ids).destroy_all
-            ExerciseShixunAnswer.search_shixun_answers("user_id", user_ids)
-              .search_shixun_answers("exercise_question_id", exercise_question_ids).destroy_all
-
-            normal_status(0, "已成功打回重做！")
-          else
-            normal_status(-1, "请选择学生！")
-          end
-        end
-      end
-
-      #学生开始答题页面
-      def start_answer
-        ex_users_current = ExerciseUser.where(user_id: @exercise_current_user_id, exercise_id: @exercise.id) #不能用@exercise.exercise_users，因为exercise_users删除时，只是状态改变，未删除
-        @exercise_user_current = ex_users_current&.first
-        if ex_users_current.exists?
-          if @exercise_user_current.start_at.blank?
-            @exercise_user_current.update!(start_at: Time.now)
-          end
-        else
-          if @user_course_identity > Course::ASSISTANT_PROFESSOR #当为老师的时候，不创建exercise_user表，理论上老师是不能进入答题的
-            exercise_user_params = {
-              :user_id => @exercise_current_user_id,
-              :exercise_id => @exercise.id,
-              :start_at => Time.now
-            }
-            exercise_user_current = ExerciseUser.new(exercise_user_params)
-            exercise_user_current.save!
-          end
-        end
-        @t_user_exercise_status = @exercise.get_exercise_status(current_user)
-
-        @user_left_time = nil
-        if @user_course_identity < Course::STUDENT || (@t_user_exercise_status == 3) ||
-          (ex_users_current.exists? && @exercise_user_current.commit_status == 1)
-          @user_exercise_status = 1 #当前用户为老师/试卷已截止/试卷已提交不可编辑
-        else
-          @user_left_time = get_exercise_left_time(@exercise, current_user)
-          @user_exercise_status = 0 #可编辑
-        end
-
-        @exercise_questions = @exercise.exercise_questions
-
-        if @exercise.question_random
-          @exercise_questions = @exercise_questions.order("RAND()")
-        else
-          @exercise_questions = @exercise_questions.order("question_number ASC")
-        end
-        # 判断问题是否已回答还是未回答
-        @exercise_questions = @exercise_questions.includes(:exercise_shixun_challenges,
-                                                           :exercise_shixun_answers,
-                                                           :exercise_answers,
-                                                           :exercise_standard_answers)
-
-        if @t_user_exercise_status == Exercise::DEADLINE
-          get_each_student_exercise(@exercise.id, @exercise_questions, @exercise_current_user_id)
-        end
-        get_user_answer_status(@exercise_questions, @exercise_current_user_id, @exercise, @t_user_exercise_status)
-
-      end
-
-      #提交试卷前的弹窗
-      def begin_commit
-        ActiveRecord::Base.transaction do
-          if @user_course_identity > Course::ASSISTANT_PROFESSOR #为学生时
-            @exercise_questions = @exercise.exercise_questions
-            @shixun_undo = 0
-            @ques_undo = 0
-            ex_answer_time = @exercise.time.to_i
-            if ex_answer_time > 0 #有剩余时间的时候
-              user_left_time = get_exercise_left_time(@exercise, current_user)
-              @ex_end_time = Time.now + user_left_time.to_i.seconds
-            else
-              @ex_end_time = @exercise.get_exercise_end_time(current_user.id)
-            end
-            # @ex_end_time = @exercise.get_exercise_end_time(current_user.id)
-            # if ex_answer_time > 0
-            #   left_answer_time = Time.now + ex_answer_time.minutes  #判断试卷的倒计时和截止时间哪个先到
-            #   if left_answer_time < @ex_end_time
-            #     exercise_end_time = @exercise.exercise_users.exercise_commit_users(current_user.id)
-            #     if exercise_end_time.present?
-            #       ex_end_times =  exercise_end_time.first.start_at.nil? ? Time.now : exercise_end_time.first.start_at
-            #       @ex_end_time = ex_end_times + ex_answer_time.minutes
-            #     end
-            #   end
-            # end
-            @exercise_questions.each do |q|
-              if q.question_type == Exercise::PRACTICAL #当为实训题时
-                user_myshixun = q.shixun.myshixuns.search_myshixun_user(current_user.id)
-                if user_myshixun.blank? || user_myshixun.first.status != Exercise::UNPUBLISHED #当前用户的实训是否做完
-                  @shixun_undo += 1
-                end
-              else
-                ques_vote = q.exercise_answers.search_exercise_answer("user_id", current_user.id)
-                if ques_vote.blank?
-                  @ques_undo += 1
-                end
-              end
-            end
-          end
-        end
-      end
-
-      # 学生提交试卷
-      def commit_exercise
-        tip_exception(0, "试卷截止时间已到，系统已自动提交") if @answer_committed_user.commit_status == 1
-        ActiveRecord::Base.transaction do
-          can_commit_exercise = false
-          user_left_time = nil
-          if @user_course_identity > Course::ASSISTANT_PROFESSOR #为学生时
-            if params[:commit_method].to_i == 2 #自动提交时
-              user_left_time = get_exercise_left_time(@exercise, current_user)
-              Rails.logger.info("######__________auto_commit_user_left_time_________################{user_left_time}")
-              if user_left_time.to_i <= 0
-                can_commit_exercise = true
-              end
-            else
-              can_commit_exercise = true
-            end
-            if can_commit_exercise
-              objective_score = calculate_student_score(@exercise, current_user, Time.now)[:total_score]
-              subjective_score = @answer_committed_user.subjective_score
-              total_score_subjective_score = subjective_score < 0.0 ? 0.0 : subjective_score
-              total_score = objective_score + total_score_subjective_score
-              commit_option = {
-                :status => 1,
-                :commit_status => 1,
-                :end_at => Time.now,
-                :objective_score => objective_score,
-                :score => total_score,
-                :subjective_score => subjective_score,
-                :commit_method => @answer_committed_user&.commit_method.to_i > 0 ? @answer_committed_user&.commit_method.to_i : params[:commit_method].to_i
-              }
-              @answer_committed_user.update!(commit_option)
-              CommitExercsieNotifyJobJob.perform_later(@exercise.id, current_user.id)
-              normal_status(0, "试卷提交成功！")
-            else
-              normal_status(-2, "#{user_left_time.to_i}")
-            end
-          else
-            normal_status(-1, "提交失败，当前用户不为课堂学生!")
-          end
-        end
-      end
-
-      #教师评阅试卷 及学生查看试卷
-      def review_exercise
-        ActiveRecord::Base.transaction do
-          # 1 老师权限，0 学生权限
-          @is_teacher_or = (@user_course_identity < Course::STUDENT) ? 1 : 0
-          @student_status = 2
-          @exercise_questions = @exercise.exercise_questions.includes(:exercise_shixun_challenges, :exercise_standard_answers, :exercise_answers, :exercise_shixun_answers, :exercise_answer_comments).order("question_number ASC")
-          @question_status = []
-          get_exercise_status = @exercise.get_exercise_status(current_user) #当前用户的试卷状态
-          @ex_answer_status = @exercise.get_exercise_status(@ex_user&.user) #当前试卷用户的试卷状态
-          if @ex_user.present? && @is_teacher_or == 0
-            if get_exercise_status == Exercise::PUBLISHED #当前用户已提交，且试卷未截止
-              if @ex_user.commit_status == 0 #学生未提交，且当前为学生
-                @student_status = 0
-              else
-                @student_status = 1
-                get_user_answer_status(@exercise_questions, @exercise_current_user_id, @exercise, get_exercise_status)
-              end
-            end
-          end
-          if @student_status == 2
-            get_each_student_exercise(@exercise.id, @exercise_questions, @exercise_current_user_id)
-          end
-        end
-      end
-
-      #答题列表
-      def exercise_lists
-        @current_user_id = current_user.id
-        exercise_ids = [@exercise.id]
-        @exercise_status = @exercise.get_exercise_status(current_user)
-        @course_all_members = @course.students
-        @c_group_counts = @course.course_groups_count
-        question_types = @exercise.exercise_questions.pluck(:question_type).uniq
-        @exercise_publish_count = get_user_permission_course(exercise_ids, Exercise::PUBLISHED).count #判断是否有已发布的分班
-        @exercise_unpublish_count = get_user_permission_course(exercise_ids, Exercise::UNPUBLISHED).count #判断是否有未发布的分班
-
-        if (question_types.size > 1) && question_types.include?(Exercise::SUBJECTIVE) #是否包含主观题,或者是否大于1
-          @subjective_type = 1
-        else
-          @subjective_type = 0
-        end
-
-        #初始化值
-        @exercise_users_list = [] #答题用户列表
-        @exercise_course_groups = [] #当前用户有权限的班级
-        @exercise_unanswers = 0 # 未答用户数
-        @exercise_answers = 0 #已答用户数
-        @exercise_users_count = 0 #全部用户数
-        @teacher_review_count = 0 #已评数
-        @teacher_unreview_count = 0 #未评数
-
-        #试卷的答题列表页的显示用户
-        if @user_course_identity < Course::STUDENT #当前为老师，而且老师只能查看自己班级的/课堂的试卷
-          @exercise_current_user_status = 0
-          unless @exercise_status == Exercise::UNPUBLISHED
-            ex_common_ids = @exercise.common_published_ids(current_user.id)
-            @exercise_course_groups = @course.get_ex_published_course(ex_common_ids)
-            @exercise_users_list = @exercise.all_exercise_users(current_user.id) #当前老师所在班级的全部学生
-            get_exercise_answers(@exercise_users_list, @exercise_status)
-          end
-        else #当前为学生或者有过答题的
-          @ex_user_end_time = @exercise.get_exercise_end_time(current_user.id) #当前用户所看到的剩余时间
-          @exercise_all_users = @exercise.get_stu_exercise_users
-          get_exercise_answers(@exercise_all_users, @exercise_status) # 未答和已答的
-          exercise_current_user = @exercise_all_users.exercise_commit_users(current_user.id)
-          if exercise_current_user.exists? #表示为课堂学生或已回答的
-            @exercise_current_user_status = 1
-            if @exercise.score_open && @exercise_status == Exercise::DEADLINE #勾选了成绩公开且试卷已截止的
-              all_user_ids = @exercise_all_users.pluck(:user_id)
-              all_user_ids.delete(current_user.id) #删除了当前用户的ID
-              @exercise_users_list = @exercise_all_users.exercise_commit_users(all_user_ids).distinct
-              @current_user_ex_answers = exercise_current_user #当前用户的回答
-            else
-              @exercise_users_list = exercise_current_user
-            end
-          else #表示为未回答的，或未非课堂成员的
-            @exercise_current_user_status = 2 #当前用户非课堂成员
-          end
-        end
-
-        if @exercise_unanswers < 0
-          @exercise_unanswers = 0
-        end
-
-        #筛选/分类,排序
-        order = params[:order]
-        order_type = params[:order_type] || "desc"
-
-        if @exercise_users_list.present? && @exercise_users_list.size > 0
-          @exercise_users_count = @exercise_users_list.size #当前显示的全部成员数量
-          teacher_reviews = @exercise_users_list.exercise_review
-          teacher_unreviews = @exercise_users_list.exercise_unreview
-          @teacher_review_count = teacher_reviews.size #已评阅
-          @teacher_unreview_count = teacher_unreviews.size #未评阅
-
-          #是否评阅
-          if params[:review].present?
-            review_type = params[:review].first.to_i #已评，则数据为1，未评，则数据为0,前端传过来的为数组
-            if review_type == 1
-              @exercise_users_list = teacher_reviews
-            else
-              @exercise_users_list = teacher_unreviews
-            end
-          end
-
-          #答题状态的选择
-          if params[:commit_status].present?
-            choose_type = params[:commit_status]
-            @exercise_users_list = @exercise_users_list.commit_exercise_by_status(choose_type)
-          end
-
-          #班级的选择
-          if params[:exercise_group_id].present?
-            group_id = params[:exercise_group_id]
-            exercise_students = @course_all_members.course_find_by_ids("course_group_id", group_id) #试卷所分班的全部人数
-            user_ids = exercise_students.pluck(:user_id).reject(&:blank?)
-            @exercise_users_list = @exercise_users_list.exercise_commit_users(user_ids)
-          end
-
-          #搜索
-          if params[:search].present?
-            @exercise_users_list = @exercise_users_list.joins(user: :user_extension).where("CONCAT(lastname, firstname) like ? OR student_id like ?", "%#{params[:search]}%", "%#{params[:search]}%")
-          end
-
-          exercise_user_joins = @exercise_users_list.joins(user: :user_extension)
-
-          if order == "student_id"
-            @exercise_users_list = exercise_user_joins.order("user_extensions.student_id #{order_type}")
-          elsif order == "score"
-            @exercise_users_list = exercise_user_joins.order("#{order} #{order_type}")
-          else
-            @exercise_users_list = exercise_user_joins.order("end_at #{order_type}, start_at #{order_type}")
-          end
-
-          @export_ex_users = @exercise_users_list
-
-          @exercise_users_size = @exercise_users_list.size
-
-          # 分页
-          @page = params[:page] || 1
-          @limit = params[:limit] || 20
-          @exercise_users_list = @exercise_users_list.page(@page).per(@limit)
-        else
-          @exercise_users_list = []
-          @export_ex_users = @exercise_users_list
-          @exercise_users_size = 0
-        end
-
-        if params[:format] == "xlsx"
-          if @user_course_identity > Course::ASSISTANT_PROFESSOR
-            tip_exception(403, "无权限操作")
-          elsif @exercise_status == Exercise::UNPUBLISHED
-            normal_status(-1, "试卷未发布")
-          elsif (@exercise_users_size == 0) || (@export_ex_users&.exercise_user_committed.size == 0)
-            normal_status(-1, "暂无用户提交")
-          elsif params[:export].present? && params[:export]
-            normal_status(0, "正在下载中")
-          else
-            respond_to do |format|
-              format.xlsx {
-                set_export_cookies
-                get_export_users(@exercise, @course, @export_ex_users)
-                exercise_export_name_ =
-                  "#{current_user.real_name}_#{@course.name}_#{@exercise.exercise_name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}"
-                render xlsx: "#{exercise_export_name_.strip}", template: "exercises/exercise_lists.xlsx.axlsx", locals: {table_columns: @table_columns, exercise_users: @user_columns}
-              }
-            end
-          end
-        end
-      end
-
-      #导出空白试卷
-      def export_exercise
-        @request_url = request.base_url
-        @exercise_questions = @exercise.exercise_questions.includes(:exercise_choices).order("question_number ASC")
-        filename_ = "#{@exercise.user.real_name}_#{@course.name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}.pdf"
-        stylesheets = "#{Rails.root}/app/templates/exercise_export/exercise_export.css"
-        if params[:export].present? && params[:export]
-          normal_status(0, "正在下载中")
-        else
-          set_export_cookies
-          render pdf: 'exercise_export/blank_exercise', filename: filename_, stylesheets: stylesheets, disposition: 'inline', type: "pdf_attachment.content_type", stream: false
-        end
-      end
-
-      #空白试卷预览页面,仅供测试使用，无其他任何用途
-      # def blank_exercise
-      #   ActiveRecord::Base.transaction do
-      #     begin
-      #       @exercise_questions = @exercise.exercise_questions.order("question_number ASC")
-      #       challenge_ids = @exercise_questions.joins(:exercise_shixun_challenges).pluck("exercise_shixun_challenges.challenge_id")
-      #       get_each_student_exercise(@exercise.id,@exercise_questions,31798)
-      #       @games = @exercise_user.user.games.ch_games(challenge_ids)
-      #       respond_to do |format|
-      #         format.html
-      #       end
-      #     rescue Exception => e
-      #       uid_logger_error(e.message)
-      #       tip_exception("没有权限")
-      #       raise ActiveRecord::Rollback
-      #     end
-      #   end
-      # end
-
-      #学生的统计结果
-      def exercise_result
-        exercise_ids = [@exercise.id]
-        @exercise_publish_count = get_user_permission_course(exercise_ids, Exercise::PUBLISHED).size #判断是否有已发布的分班
-        @exercise_unpublish_count = get_user_permission_course(exercise_ids, Exercise::UNPUBLISHED).size #判断是否有未发布的分班
-        @course_all_members = @course.students #课堂的全部学生
-        @exercise_all_users = @exercise.exercise_users
-        ex_common_ids = @exercise.common_published_ids(current_user.id)
-        @exercise_course_groups = @course.get_ex_published_course(ex_common_ids)
-
-        #班级的选择
-        if params[:exercise_group_id].present?
-          group_id = params[:exercise_group_id]
-          exercise_students = @course_all_members.course_find_by_ids("course_group_id", group_id) # 试卷所分班的全部人数
-          user_ids = exercise_students.pluck(:user_id).reject(&:blank?)
-          @exercise_all_users = @exercise.exercise_users.exercise_commit_users(user_ids)
-          @course_all_members_count = @exercise_all_users.size
-        else
-          @exercise_users_list = @exercise.all_exercise_users(current_user.id)
-          @course_all_members_count = @exercise_users_list.size
-        end
-        @exercise_commit_users = @exercise_all_users.commit_exercise_by_status(1) #试卷的已提交用户
-        @exercise_commit_user_ids = @exercise_commit_users.pluck(:user_id).uniq #已提交试卷的全部用户id
-        @exercise_commit_user_counts = @exercise_commit_users.size #试卷的已提交用户人数
-        @exercise_status = @exercise.get_exercise_status(current_user)
-
-        #提交率
-        if @course_all_members_count == 0
-          commit_percent = 0.00
-          min_score = 0.0
-          max_score = 0.0
-          average_score = 0.0
-          fail_counts = 0
-          pass_counts = 0
-          good_counts = 0
-          best_counts = 0
-        else
-          commit_percent = (@exercise_commit_user_counts / @course_all_members_count.to_f).round(3)
-          exercise_scores = @exercise_commit_users.pluck(:score).reject(&:blank?)
-          min_score = exercise_scores.min.present? ? exercise_scores.min : 0.0
-          max_score = exercise_scores.max.present? ? exercise_scores.max : 0.0
-          total_score = exercise_scores.sum.present? ? exercise_scores.sum : 0.0
-          average_score = @exercise_commit_user_counts > 0 ? (total_score.round(1) / @exercise_commit_user_counts).round(1) : 0.0
-          question_scores = @exercise.question_scores
-          fail_score = question_scores * 0.6.round(2)
-          pass_score = question_scores * 0.7.round(2)
-          good_score = question_scores * 0.9.round(2)
-
-          fail_counts = exercise_scores.count {|a| a < fail_score}
-          pass_counts = exercise_scores.count {|a| a < pass_score && a >= fail_score}
-          good_counts = exercise_scores.count {|a| a < good_score && a >= pass_score}
-          best_counts = exercise_scores.count {|a| a >= good_score && a <= question_scores}
-        end
-        @counts_array = {
-          :commit_percent => commit_percent,
-          :min_score => min_score.to_s,
-          :max_score => max_score.to_s,
-          :average_score => average_score.to_s,
-          :fail_counts => fail_counts,
-          :pass_counts => pass_counts,
-          :good_counts => good_counts,
-          :best_counts => best_counts,
-        }
-
-        @exercise_questions = @exercise.exercise_questions&.includes(:exercise_choices, :exercise_answers, :exercise_standard_answers, :exercise_shixun_challenges, :exercise_shixun_answers)
-
-        percent_sort = "desc"
-
-        if params[:sort].present?
-          percent_sort = params[:sort]
-        end
-        # @paging_type = "percent"
-        # # 按题型排序
-        # if params[:sort].present?
-        #   @paging_type = params[:sort].to_s
-        # end
-
-        ques_result_all = exercise_commit_result(@exercise_questions, @exercise_commit_user_ids)
-
-        #默认降序排列
-        if percent_sort == "desc"
-          @question_result_hash = ques_result_all.sort_by {|s| s[:percent]}.reverse
-        else
-          @question_result_hash = ques_result_all.sort_by {|s| s[:percent]}
-        end
-
-        @exercise_questions_count = @exercise_questions.size
-        @page = params[:page] || 1
-        @limit = params[:limit] || 10
-        @question_result_hash = Kaminari.paginate_array(@question_result_hash).page(@page).per(@limit)
-      end
-
-      private
-
-      def exercise_params
-        params.require(:exercise).permit(:exercise_name, :exercise_description, :course_id, :exercise_status, :user_id, :time,
-                                         :publish_time, :end_time, :show_result, :question_random, :choice_random, :is_public,
-                                         :score_open, :answer_open, :exercise_bank_id, :unified_setting, :show_statistic)
-      end
-
-      def is_course_teacher
-        unless @user_course_identity < Course::STUDENT #为老师/助教/管理员
-          normal_status(403, "...")
-        end
-      end
-
-      #检查传入的参数内容是否符合
-      def validates_exercise_params
-        normal_status(-1, "试卷标题不能为空！") if params[:exercise_name].blank?
-        normal_status(-1, "试卷标题不能超过60个字符") if (params[:exercise_name].length > 60)
-        normal_status(-1, "试卷须知不能超过100个字符") if (params[:exercise_description].present? &&
-          params[:exercise_description].length > 100)
-      end
-
-      #判断设置的时间是否合理
-      def validate_publish_time
-        # 截止时间存在，且截止时间必须大于当前时间或发布时间
-        unified_setting = params[:unified_setting]
-        publish_course = params[:publish_time_groups]
-        if @course.is_end
-          normal_status(-1, "课堂已结束不能再修改")
-        elsif unified_setting
-          ex_group_settings = @exercise.exercise_group_settings
-          if ex_group_settings.present?
-            p_time_present = ex_group_settings.publish_time_no_null.map(&:publish_time).min
-            if p_time_present && p_time_present < Time.now
-              normal_status(-1, "设置失败，存在已发布的分班")
-            end
-          elsif params[:publish_time].blank?
-            normal_status(-1, "发布时间不允许为空")
-          end
-        elsif unified_setting.present? && !unified_setting #非统一设置，分班不能为空
-          if publish_course.present?
-            course_ids = publish_course.map {|a| a[:course_group_id]}.sum
-            publish_t = publish_course.map {|a| a[:publish_time]}
-            if course_ids.include?(nil) || course_ids.count == 0
-              normal_status(-1, "请选择分班")
-            elsif publish_t.include?(nil) || publish_t.count == 0
-              normal_status(-1, "发布时间不允许为空")
-            end
-          else
-            normal_status(-1, "请选择分班")
-          end
-        end
-      end
-
-      def get_exercise
-        @exercise = Exercise.find_by(id: params[:id])
-        if @exercise.blank?
-          normal_status(404, "试卷不存在")
-        else
-          @course = @exercise.course
-          normal_status(404, "课堂不存在") if @course.blank?
-        end
-      end
-
-      def get_exercise_question_counts #获取试卷的问题数及总分数
-        exercise_questions = @exercise.exercise_questions
-        @exercise_ques_count = exercise_questions.size # 全部的题目数
-        @exercise_ques_scores = exercise_questions.pluck(:question_score).sum
-
-        #单选题的数量及分数
-        exercise_single_ques = exercise_questions.find_by_custom("question_type", Exercise::SINGLE)
-        @exercise_single_ques_count = exercise_single_ques.size
-        @exercise_single_ques_scores = exercise_single_ques.pluck(:question_score).sum
-
-        #多选题的数量及分数
-        exercise_double_ques = exercise_questions.find_by_custom("question_type", Exercise::MULTIPLE)
-        @exercise_double_ques_count = exercise_double_ques.size
-        @exercise_double_ques_scores = exercise_double_ques.pluck(:question_score).sum
-
-        # 判断题数量及分数
-        exercise_ques_judge = exercise_questions.find_by_custom("question_type", Exercise::JUDGMENT)
-        @exercise_ques_judge_count = exercise_ques_judge.size
-        @exercise_ques_judge_scores = exercise_ques_judge.pluck(:question_score).sum
-
-        #填空题数量及分数
-        exercise_ques_null = exercise_questions.find_by_custom("question_type", Exercise::COMPLETION)
-        @exercise_ques_null_count = exercise_ques_null.size
-        @exercise_ques_null_scores = exercise_ques_null.pluck(:question_score).sum
-
-        #简答题数量及分数
-        exercise_ques_main = exercise_questions.find_by_custom("question_type", Exercise::SUBJECTIVE)
-        @exercise_ques_main_count = exercise_ques_main.size
-        @exercise_ques_main_scores = exercise_ques_main.pluck(:question_score).sum
-
-        #实训题数量及分数
-        exercise_ques_shixun = exercise_questions.find_by_custom("question_type", Exercise::PRACTICAL)
-        @exercise_ques_shixun_count = exercise_ques_shixun.size
-        @exercise_ques_shixun_scores = exercise_ques_shixun.pluck(:question_score).sum
-
-        @exercise_questions = @exercise_questions&.includes(:exercise_choices, :exercise_shixun_challenges, :exercise_answers, :exercise_shixun_answers, :exercise_answer_comments, :exercise_standard_answers)
-
-      end
-
-      #获取用户有权限的分班
-      def get_user_permission_course(exercise_ids, status)
-        exercise_status = status.to_i #传入的试卷发布状态
-        unpublish_group = []
-        course_groups = []
-        user_groups_id = @course.charge_group_ids(current_user)
-        exercises_all = Exercise.includes(:exercise_group_settings).where(id: exercise_ids)
-        exercises_all.each do |exercise|
-          if exercise.present?
-            if exercise.unified_setting #统一设置只有两种情况，全部发布，全部截止
-              exercise_user_status = exercise.get_exercise_status(current_user) #当前用户的能看到的试卷
-              if (exercise_user_status == exercise_status) || exercise_status == Exercise::DEADLINE #未发布的情况
-                unpublish_group = unpublish_group + user_groups_id
-              end
-            else
-              ex_all_group_settings = exercise.exercise_group_settings
-              ex_group_settings = ex_all_group_settings.exercise_group_published.pluck(:course_group_id).uniq #问卷设置的班级
-              if exercise_status == Exercise::UNPUBLISHED
-                unpublish_group = user_groups_id - ex_group_settings
-              elsif exercise_status == Exercise::DEADLINE
-                ex_ended_groups = ex_all_group_settings.exercise_group_ended.pluck(:course_group_id).uniq
-                ex_and_user = user_groups_id & ex_group_settings #用户已设置的分班
-                unpublish_group = unpublish_group + ex_and_user - ex_ended_groups #已发布的全部班级减去截止的全部班级
-              else
-                ex_ended_groups = ex_all_group_settings.exercise_group_ended.pluck(:course_group_id).uniq
-                ex_and_user = user_groups_id & ex_group_settings #用户已设置的分班
-                unpublish_group = unpublish_group + ex_and_user - ex_ended_groups
-              end
-            end
-          end
-        end
-        Rails.logger.info("#####____________unpublish_group_______#######{unpublish_group}")
-        unpublish_group = unpublish_group.uniq
-        if unpublish_group.count > 0
-          course_groups = CourseGroup.by_group_ids(unpublish_group)
-        end
-        course_groups
-      end
-
-      def set_exercise_status(publish_time, end_time)
-        time_now_i = Time.now
-        if publish_time.present? && (publish_time <= time_now_i) && (end_time > time_now_i)
-          2
-        elsif publish_time.nil? || (publish_time.present? && publish_time > time_now_i)
-          1
-        elsif end_time.present? && (end_time <= time_now_i)
-          3
-        elsif end_time.present? && publish_time.present? && (end_time < publish_time)
-          normal_status(-1, "时间设置错误！")
-        else
-          1
-        end
-      end
-
-      def check_course_public
-        unless @course.is_public == 1 # 0为私有，1为公开
-          normal_status(403, "...")
-        end
-      end
-
-      def check_user_id_start_answer #判断用户在开始答题时，是否有用户id传入,如果为老师，则id必需，否则为当前用户的id
-        user_login = params[:login]
-        if user_login.blank? && @user_course_identity < Course::STUDENT #id不存在，且当前为老师/管理员等
-          normal_status(-1, "请输入学生登陆名！")
-        else
-          if @user_course_identity < Course::STUDENT || @exercise.score_open
-            @ex_answerer = user_login.blank? ? current_user : User.find_by(login: user_login)
-          else
-            @ex_answerer = current_user
-          end
-
-          if @ex_answerer.blank?
-            normal_status(404, "答题用户不存在")
-          elsif @user_course_identity > Course::STUDENT && !@exercise.is_public
-            normal_status(403, "非公开试卷")
-          else
-            # @exercise_current_user_id = @ex_answerer.id || current_user.id
-            @exercise_current_user_id = @ex_answerer.id
-          end
-        end
-      end
-
-      ## 判断开始答题页面的用户权限
-      def check_user_on_answer
-        if @user_course_identity == Course::STUDENT && @exercise.get_exercise_status(current_user) == Exercise::UNPUBLISHED #试卷未发布，且当前用户不为老师/管理员
-          normal_status(-1, "未发布试卷！")
-        elsif @user_course_identity > Course::STUDENT && (!@exercise.is_public || (@exercise.is_public && !@exercise.unified_setting)) ##不为课堂成员，且试卷不为公开的,或试卷公开，但不是统一设置的
-          normal_status(-1, "试卷暂未公开！")
-        end
-      end
-
-      def check_exercise_time
-        @answer_committed_user = @exercise.exercise_users.exercise_commit_users(current_user.id)&.first
-        if @answer_committed_user.blank?
-          normal_status(404, "答题用户不存在")
-        end
-      end
-
-      #打回重做时的初步判断
-      def check_exercise_status
-        @exercise_users = @exercise.all_exercise_users(current_user.id).commit_exercise_by_status(1) #当前教师所在分班的全部已提交的学生数
-        if @exercise.get_exercise_status(current_user) != Exercise::PUBLISHED
-          normal_status(-1, "非提交中的试卷不允许打回重做！")
-        elsif @exercise_users.count < 1
-          normal_status(-1, "暂无人提交试卷！")
-        end
-      end
-
-
-      #查看试题页面，当为学生时，除非试卷已截止，或已提交才可以查看
-      def check_exercise_is_end
-        ex_status = @exercise.get_exercise_status(current_user)
-        @ex_user = @exercise.exercise_users.find_by(user_id: @exercise_current_user_id) #该试卷的回答者
-        if @user_course_identity > Course::ASSISTANT_PROFESSOR
-          if ex_status == Exercise::UNPUBLISHED
-            normal_status(-1, "试卷未发布")
-          elsif @ex_user.present? && @ex_user.commit_status == 0
-            normal_status(-1, "试卷未提交")
-          elsif params[:user_id].present? && current_user.id != params[:user_id]
-            normal_status(-1, "不能查看他人的试卷")
-          end
-        end
-      end
-
-      #查看试卷是否选择为公开统计
-      def check_exercise_public
-        if @user_course_identity > Course::ASSISTANT_PROFESSOR #当前为学生,试卷公开统计，且已截止，且已提交
-          ex_user = @exercise.exercise_users.exercise_commit_users(current_user.id).first
-          unless @exercise.get_exercise_status(current_user) == Exercise::DEADLINE && ex_user.present? && ex_user.commit_status == 1 &&
-            @exercise.show_statistic
-            normal_status(-1, "学生暂不能查看")
-          end
-        end
-      end
-
-      def get_left_banner_id
-        left_banner_content = @course.course_modules.search_by_module_type("exercise")
-        if left_banner_content.present?
-          @left_banner_id = left_banner_content.first.id
-          @left_banner_name = left_banner_content.first.module_name
-        else
-          normal_status(404, "左侧导航不存在")
-        end
-      end
-
-      def get_user_answer_status(exercise_questions, user_id, exercise, exercise_user_status)
-        @question_status = []
-        @exercise_all_questions = []
-        ex_question_random = exercise.question_random
-        question_answered = 0
-        exercise_questions.each_with_index do |q, index|
-          if ex_question_random && exercise_user_status != Exercise::DEADLINE
-            ques_number = index + 1
-          else
-            ques_number = q.question_number
-          end
-          ques_status = 0
-          if q.question_type != Exercise::PRACTICAL
-            ques_vote = q.exercise_answers.select {|answer| answer.user_id == user_id}
-
-            if ques_vote.present?
-              #其他题目，需回答的有内容，才会为已答，否则如内容为空，视为未答
-              vote_answer_id = ques_vote.pluck(:exercise_choice_id).reject(&:blank?)
-              vote_text_count = ques_vote.pluck(:answer_text).reject(&:blank?).size
-              if q.question_type <= Exercise::JUDGMENT #选择题和判断题的时候，需要有选项，才算回答
-                if vote_answer_id.size > 0
-                  ques_status = 1
-                  question_answered += 1
-                end
-              else
-                if vote_text_count > 0 #主观题，必选有内容，才算回答
-                  ques_status = 1
-                  question_answered += 1
-                end
-              end
-            end
-          else
-            if Myshixun.exists?(user_id: user_id, shixun_id: q.shixun_id)
-              ques_status = 1
-              question_answered += 1
-            end
-          end
-          question_status = {
-            :ques_id => q.id,
-            :ques_number => ques_number, #仅问题的显示位置变化，但是问题的question_number 不会变化，与之相关的choice/standard_answer/answer不会变化
-            :ques_status => ques_status,
-          }
-          question_options = {
-            :question => q,
-            :ques_number => ques_number,
-          }
-          @question_status = @question_status.push(question_status).sort_by {|k| k[:ques_number]}
-          @exercise_all_questions = @exercise_all_questions.push(question_options).sort_by {|k| k[:ques_number]}
-        end
-      end
-
-      #下一步也有check_on_users再进行判断
-      def only_student_in
-        if @user_course_identity < Course::STUDENT
-          normal_status(-1, "老师身份不允许进入")
-        end
-      end
-
-      #判断实训是否已选择
-      def commit_shixun_present
-        question_shixun_ids = @exercise.exercise_questions.pluck(:shixun_id).reject(&:blank?)
-        shixun_id = params[:shixun_id]
-        @shixun = Shixun.find_by(id: shixun_id)
-        if shixun_id.present? && question_shixun_ids.include?(shixun_id)
-          normal_status(-1, "该实训已选择！")
-        elsif @shixun.blank?
-          normal_status(-1, "该实训不存在！")
-        end
-      end
-
-    end
 
     @exercise_questions_count = @exercise_questions.size
     @page = params[:page] || 1