diff --git a/app/controllers/homework_commons_controller.rb b/app/controllers/homework_commons_controller.rb
index d3ece9feb..c0d72e1ee 100644
--- a/app/controllers/homework_commons_controller.rb
+++ b/app/controllers/homework_commons_controller.rb
@@ -90,13 +90,13 @@ class HomeworkCommonsController < ApplicationController
 
     if @homework_type == 4
       if @user_course_identity == Course::STUDENT
-        @homework_commons = @homework_commons.includes(:homework_detail_manual, :homework_group_settings, :shixuns,
+        @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :shixuns,
                                                        student_works: [myshixun: [:games]])
       else
-        @homework_commons = @homework_commons.includes(:homework_detail_manual, :homework_group_settings, :shixuns, :student_works)
+        @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :shixuns, :student_works)
       end
     else
-      @homework_commons = @homework_commons.includes(:homework_detail_manual, :homework_group_settings, :homework_detail_group,
+      @homework_commons = @homework_commons.includes(:homework_detail_manual, :published_settings, :homework_detail_group,
                                                      :student_works)
     end
   end
diff --git a/app/models/homework_common.rb b/app/models/homework_common.rb
index 74d85e2ae..d67b6e0fd 100644
--- a/app/models/homework_common.rb
+++ b/app/models/homework_common.rb
@@ -2,6 +2,7 @@ class HomeworkCommon < ApplicationRecord
   # homework_type 1：普通作业  2：编程作业（弃用） 3：分组作业  4：实训作业
   enum homework_type: { normal: 1, program: 2, group: 3, practice: 4 }, _suffix: true
   has_many :homework_group_settings, dependent: :destroy
+  has_many :published_settings, -> { group_published }, class_name: "HomeworkGroupSetting"
   has_many :student_works, -> { where("is_delete != 1") }
   has_one :homework_detail_manual, dependent: :destroy
 
@@ -78,7 +79,7 @@ class HomeworkCommon < ApplicationRecord
   def all_works
     student_works = self.unified_setting ? self.student_works :
                         self.student_works.where(user_id: self.course.students.where(
-                            course_group_id: self.homework_group_settings.group_published.pluck(:course_group_id)).
+                            course_group_id: self.published_settings.pluck(:course_group_id)).
                             pluck(:user_id))
   end
 
diff --git a/db/migrate/20190621062948_migrate_course_module_activity.rb b/db/migrate/20190621062948_migrate_course_module_activity.rb
new file mode 100644
index 000000000..1fa1ea112
--- /dev/null
+++ b/db/migrate/20190621062948_migrate_course_module_activity.rb
@@ -0,0 +1,5 @@
+class MigrateCourseModuleActivity < ActiveRecord::Migration[5.2]
+  def change
+    CourseModule.where(module_type: 'activity').update_all(hidden: 1)
+  end
+end
\ No newline at end of file