#MOD xml放到com.xy.mapper包下

authorize-api-service/src/main/java/com/xy/mapper/SysDeptRelationMapper.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.xy.mapper.SysDeptRelationMapper">
+    <!-- 删除部门节点关系	-->
+    <delete id="deleteDeptRelations">
+        DELETE
+        FROM sys_dept_relation
+        WHERE descendant IN (SELECT temp.descendant
+        FROM (SELECT descendant FROM sys_dept_relation WHERE ancestor = #{descendant}) temp)
+        AND ancestor IN (SELECT temp.ancestor
+        FROM (SELECT ancestor
+        FROM sys_dept_relation
+        WHERE descendant = #{descendant}
+        AND ancestor != descendant) temp)
+    </delete>
+
+    <!--删除部门节点关系,同时删除所有关联此部门子节点的部门关系-->
+    <delete id="deleteDeptRelationsById">
+        DELETE
+        FROM sys_dept_relation
+        WHERE descendant IN (
+        SELECT temp.descendant
+        FROM (
+        SELECT descendant
+        FROM sys_dept_relation
+        WHERE ancestor = #{id}
+        ) temp
+        )
+    </delete>
+
+    <!-- 新增部门节点关系	-->
+    <insert id="insertDeptRelations">
+        INSERT INTO sys_dept_relation (ancestor, descendant)
+        SELECT a.ancestor, b.descendant
+        FROM sys_dept_relation a
+        CROSS JOIN sys_dept_relation b
+        WHERE a.descendant = #{ancestor}
+        AND b.ancestor = #{descendant}
+    </insert>
+</mapper>