复制功能

src/main/resources/mapper/ucenter/FolderSceneMapper.xml

@@ -4,7 +4,10 @@
 
     <select id="getByType" resultType="com.fdkankan.ucenter.entity.FolderScene">
         SELECT b.* from t_folder a left join t_folder_scene b on a.id = b.folder_id
-        where  b.rec_status ='A' and b.scene_id = #{sceneId} and a.type = #{type}
+        where  b.rec_status ='A' and b.scene_id = #{sceneId}
+        <if test= 'type != null'>
+            and a.type = #{type}
+        </if>
         limit 1
     </select>
     <select id="getGroupByFolderIds" resultType="com.fdkankan.ucenter.vo.response.GroupByCount">