帖子展示错误

app/controllers/forums_controller.rb

@@ -141,7 +141,7 @@ class ForumsController < ApplicationController
     @topic_pages = Paginator.new @topic_count, per_page_option, params['page']
     @memos = @forum.topics.
                     # reorder("#{Memo.table_name}.sticky DESC").
-                    includes(:last_reply).where("last_replies_memos.parent_id is null and  #{Memo.table_name}.parent_id is null").
+                    includes(:last_reply).
                     limit(@topic_pages.per_page).
                     offset(@topic_pages.offset).
                     reorder(order).