update 优化 部门修改子元素关系 使用批量更新

ruoyi-system/src/main/resources/mapper/system/SysDeptMapper.xml

@@ -37,17 +37,4 @@
         order by d.parent_id, d.order_num
     </select>
 
-    <update id="updateDeptChildren" parameterType="java.util.List">
-        update sys_dept set ancestors =
-        <foreach collection="depts" item="item" index="index"
-                 separator=" " open="case dept_id" close="end">
-            when #{item.deptId} then #{item.ancestors}
-        </foreach>
-        where dept_id in
-        <foreach collection="depts" item="item" index="index"
-                 separator="," open="(" close=")">
-            #{item.deptId}
-        </foreach>
-    </update>
-
 </mapper>