调整

app/models/exercise.rb

@@ -59,7 +59,7 @@ class Exercise < ApplicationRecord
 
   # 根据是否统一发布获取作业的作品列表
   def all_works
-    exercise_users = unified_setting ? exercise_users :
+    ex_users = unified_setting ? exercise_users :
                         exercise_users.joins("join course_members on exercise_users.user_id=course_members.user_id").
                             where(course_members: {course_group_id: published_settings.pluck(:course_group_id)})
   end

app/models/poll.rb

@@ -53,7 +53,7 @@ class Poll < ApplicationRecord
 
   # 根据是否统一发布获取作业的作品列表
   def all_works
-    poll_users = unified_setting ? poll_users :
+    po_users = unified_setting ? poll_users :
                      poll_users.joins("join course_members on poll_users.user_id=course_members.user_id").
                              where(course_members: {course_group_id: published_settings.pluck(:course_group_id)})
   end