Merge remote-tracking branch 'origin/develop' into develop

db/migrate/20200211060234_migrate_join_course_message.rb

@@ -0,0 +1,10 @@
+class MigrateJoinCourseMessage < ActiveRecord::Migration[5.2]
+  def change
+    Tiding.where(container_type: "JoinCourse", status: 0).find_each do |tiding|
+      unless CourseMessage.where(course_message_id: tiding.trigger_user_id, course_id: tiding.container_id,
+                                 course_message_type: "JoinCourseRequest", status: 0).exists?
+        tiding.update!(status: 1)
+      end
+    end
+  end
+end