试卷，问卷的状态修改

app/models/exercise.rb

@@ -127,8 +127,10 @@ class Exercise < ApplicationRecord
 
   #判断是否为分班，如果分班，试卷的截止时间为当前分班时间，否则为试卷的截止时间
   def get_exercise_status(user)
-    return Exercise::UNPUBLISHED if user.nil?
-    if user.student_of_course?(course)   #当为学生的时候,需根据分班来判断试卷状态
+    if course.end_time.present? && course.end_time <= Time.now
+      status = 4
+    else
+      if user.present? && user.student_of_course?(course)   #当为学生的时候,需根据分班来判断试卷状态
         ex_time = get_exercise_times(user_id,false)
         pb_time = ex_time[:publish_time]
         ed_time = ex_time[:end_time]
@@ -139,9 +141,11 @@ class Exercise < ApplicationRecord
         else
           status = Exercise::UNPUBLISHED
         end
-    else
-      status = exercise_status   #当为老师的时候，则为试卷的总状态
+      else
+        status = exercise_status   #当为老师的时候，则为试卷的总状态
+      end
     end
+
     status
   end
 

app/models/poll.rb

@@ -100,19 +100,25 @@ class Poll < ApplicationRecord
   end
 
   def get_poll_status(user)
-    if user.student_of_course?(course)
-      ex_time = get_poll_times(user_id,false)
-      pb_time = ex_time[:publish_time]
-      ed_time = ex_time[:end_time]
-      if pb_time.present? && ed_time.present? && pb_time <= Time.now && ed_time > Time.now
-        status = 2
-      elsif ed_time.present? && ed_time <= Time.now
-        status = 3
+    if course.end_time.present? && course.end_time <= Time.now
+      status = 4
+    else
+      if user.present? && user.student_of_course?(course)
+        ex_time = get_poll_times(user_id,false)
+        pb_time = ex_time[:publish_time]
+        ed_time = ex_time[:end_time]
+        if course.end_time.present? && course.end_time <= Time.now
+          status = 4
+        elsif pb_time.present? && ed_time.present? && pb_time <= Time.now && ed_time > Time.now
+          status = 2
+        elsif ed_time.present? && ed_time <= Time.now
+          status = 3
+        else
+          status  = 1
+        end
       else
-        status  = 1
+        status  = polls_status
       end
-    else
-      status  = polls_status
     end
     status
   end