| | |
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| | | <?xml version="1.0" encoding="UTF-8"?> |
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| | | <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> |
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| | | <mapper namespace="com.yuanchu.mom.mapper.DepartmentMapper"> |
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| | | <select id="selectDepartment" resultType="com.yuanchu.mom.pojo.Department"> |
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| | | WITH RECURSIVE DepartmentHierarchy AS ( |
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| | | SELECT id, name, father_id |
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| | | FROM department |
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| | | WHERE father_id IS NULL |
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| | | |
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| | | UNION ALL |
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| | | |
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| | | SELECT d.id, d.name, d.father_id |
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| | | FROM department d |
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| | | JOIN DepartmentHierarchy dh ON d.father_id = dh.id |
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| | | ) |
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| | | <select id="selectDepartment" resultType="com.yuanchu.mom.dto.DepartmentDto"> |
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| | | SELECT id, name, father_id |
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| | | FROM DepartmentHierarchy; |
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| | | FROM department |
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| | | </select> |
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| | | |
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| | | <select id="selectSonById" resultType="java.lang.Integer"> |
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| | | SELECT au.id |
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| | | FROM (SELECT * FROM department WHERE father_id IS NOT NULL) au, |
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| | | (SELECT @father_id := #{id}) pd |
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| | | WHERE FIND_IN_SET(father_id, @father_id) > 0 |
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| | | AND @father_id := concat(@father_id, ',', id) |
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| | | UNION |
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| | | SELECT id |
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| | | FROM department |
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| | | WHERE id = #{id} |
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| | | ORDER BY id |
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| | | </select> |
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| | | </mapper> |
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