调整

app/models/homework_common.rb

@@ -78,7 +78,7 @@ class HomeworkCommon < ApplicationRecord
   # 根据是否统一发布获取作业的作品列表
   def all_works
     student_works = self.unified_setting ? self.student_works :
-                        self.student_works.joins("join course_members cm on student_works.user_id=cm.user_id").
+                        self.student_works.joins("join course_members on student_works.user_id=course_members.user_id").
                             where(course_members: {course_group_id: self.published_settings.pluck(:course_group_id)})
   end
 
@@ -90,7 +90,7 @@ class HomeworkCommon < ApplicationRecord
     # 有分班权限的统计管理的分班且已发布的学生情况
     if member.present? && teacher_course_groups.size > 0
       group_ids = teacher_course_groups.pluck(:course_group_id)
-      all_student_works = all_student_works.joins("join course_members cm on student_works.user_id=cm.user_id").
+      all_student_works = all_student_works.joins("join course_members course_members on student_works.user_id=course_members.user_id").
           where(course_members: {course_group_id: group_ids})
     end
     all_student_works