题库的排序

app/services/users/question_bank_service.rb

@@ -85,7 +85,7 @@ class Users::QuestionBankService
   def custom_sort(relations, sort_by, sort_direction)
     case sort_by
     when 'updated_at' then
-      relations.order(updated_at: sort_direction)
+      relations.order("updated_at #{sort_direction}, id desc")
     when 'name' then
       relations.order("CONVERT(name USING gbk) COLLATE gbk_chinese_ci #{sort_direction}")
     when 'contributor' then