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2021-08-11 2c2dad24d59b37df254d1c003d6c3e1119b51d6c

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

@@ -57,4 +57,17 @@
        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>