fix but

app/controllers/exercises_controller.rb

@@ -48,6 +48,7 @@ class ExercisesController < ApplicationController
           @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
+          # get_exercise_left_time(@exercise,current_user)
           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.present? ? member_show_exercises.unified_setting : []
@@ -204,10 +205,12 @@ class ExercisesController < ApplicationController
           @is_teacher_or = 0
           @user_exercise_answer = @exercise.check_user_answer_status(current_user)
           @user_commit_counts = 0
+          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).count   #已提交的用户数
+          @user_left_time = nil
         end
         @ex_status = @exercise.get_exercise_status(current_user.id)
 
@@ -222,6 +225,8 @@ class ExercisesController < ApplicationController
             @exercise_publish_count = 1   #试卷未发布，且课堂没有分班的时候
           end
         end
+
+
       rescue Exception => e
         uid_logger_error(e.message)
         tip_exception("没有权限")
@@ -1016,17 +1021,20 @@ class ExercisesController < ApplicationController
             @exercise_user_current.update_attribute("start_at",Time.now)
           end
         end
-        ex_time = @exercise.time
+
-        if ex_time > 0
+        get_exercise_left_time(@exercise,@exercise_user_current)
-          time_mill = ex_time * 60   #转为秒
+
-          exercise_end_time = @exercise.end_time.present? ? @exercise.end_time.to_i : 0
+        # ex_time = @exercise.time
-          exercise_user_start = @exercise_user_current.present? ? @exercise_user_current.start_at.to_i : 0
+        # if ex_time > 0
-          if (exercise_user_start + time_mill) > exercise_end_time
+        #   time_mill = ex_time * 60   #转为秒
-            time_mill = exercise_end_time - exercise_user_start   #如果开始答题时间加试卷的限时长大于试卷的截止时间，则以试卷的截止时间到开始答题时间为试卷的限时
+        #   exercise_end_time = @exercise.end_time.present? ? @exercise.end_time.to_i : 0
-          end
+        #   exercise_user_start = @exercise_user_current.present? ? @exercise_user_current.start_at.to_i : 0
-          exercise_user_left_time = Time.now.to_i - exercise_user_start   #用户已回答的时间
+        #   if (exercise_user_start + time_mill) > exercise_end_time
-          @user_left_time = (time_mill < exercise_user_left_time) ? nil : (time_mill - exercise_user_left_time)   #当前用户对试卷的回答剩余时间
+        #     time_mill = exercise_end_time - exercise_user_start   #如果开始答题时间加试卷的限时长大于试卷的截止时间，则以试卷的截止时间到开始答题时间为试卷的限时
-        end
+        #   end
+        #   exercise_user_left_time = Time.now.to_i - exercise_user_start   #用户已回答的时间
+        #   @user_left_time = (time_mill < exercise_user_left_time) ? nil : (time_mill - exercise_user_left_time)   #当前用户对试卷的回答剩余时间
+        # end
 
         @t_user_exercise_status = @exercise.get_exercise_status(current_user.id)
 
@@ -1788,4 +1796,6 @@ class ExercisesController < ApplicationController
     end
   end
 
+
+
 end

app/helpers/exercises_helper.rb

@@ -419,13 +419,13 @@ module ExercisesHelper
             if game.present?
               exercise_cha_score = 0.0
               answer_status = 0
-              cha_path = challenge_path exercise_cha.challenge.path
               if game.status == 2 && game.final_score >= 0
                 exercise_cha_score = exercise_cha.question_score #每一关卡的得分
                 answer_status = 1
               end
               ex_shixun_answer_content = answers_content.where(exercise_shixun_challenge_id: exercise_cha.id)
               if ex_shixun_answer_content.blank?  #把关卡的答案存入试卷的实训里
+                cha_path = challenge_path exercise_cha.challenge.path
                 game_challenge = game.game_codes.search_challenge_path(cha_path).first
                 if game_challenge.present?
                   game_code = game_challenge
@@ -681,6 +681,21 @@ module ExercisesHelper
     result
   end
 
+  def get_exercise_left_time(exercise,exercise_user)
+    ex_time = exercise.time
+    if ex_time > 0
+      time_mill = ex_time * 60   #转为秒
+      exercise_end_time = exercise.end_time.present? ? exercise.end_time.to_i : 0
+      exercise_user_start = exercise_user.present? ? exercise_user.start_at.to_i : 0
+      if (exercise_user_start + time_mill) > exercise_end_time
+        time_mill = exercise_end_time - exercise_user_start   #如果开始答题时间加试卷的限时长大于试卷的截止时间，则以试卷的截止时间到开始答题时间为试卷的限时
+      end
+      exercise_user_left_time = Time.now.to_i - exercise_user_start   #用户已回答的时间
+      @user_left_time = (time_mill < exercise_user_left_time) ? nil : (time_mill - exercise_user_left_time)   #当前用户对试卷的回答剩余时间
+    end
+    @user_left_time
+  end
+
   #实训题学生代码的行数
   def content_line(content)
     content.split(/\r?\n/).length

app/views/exercises/common_header.json.jbuilder

@@ -1,5 +1,7 @@
 json.course_is_end @course.is_end # true表示已结束，false表示未结束
-json.extract! @exercise, :id,:exercise_name,:exercise_description,:show_statistic,:time
+json.extract! @exercise, :id,:exercise_name,:exercise_description,:show_statistic
+json.time @user_left_time
+
 json.exercise_status @ex_status
 
 json.user_permission do

app/views/exercises/index.json.jbuilder

@@ -21,7 +21,11 @@ if @exercises_count > 0
   json.exercises do
     json.array! @exercises do |exercise|
       ex_index = exercise_index_show(exercise,@course,@is_teacher_or,@current_user_)
-      json.extract! exercise, :id, :exercise_name,:is_public,:created_at,:time
+      json.extract! exercise, :id, :exercise_name,:is_public,:created_at
+      if @is_teacher_or == 2
+        json.time get_exercise_left_time(exercise,@current_user_)
+      end
+
       json.exercise_status ex_index[:ex_status]
       json.lock_status ex_index[:lock_icon]
       json.publish_time ex_index[:publish_time]  # 试卷的发布时间