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<?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.example.springbootstudy.dao.ClientDao">
<resultMap type="com.example.springbootstudy.pojo.Client" id="client_mapping">
<id property="id" column="id"/>
<result property="name" column="name"/>
<result property="ID_Number" column="ID_Number"/>
<result property="vip_id" column="vip_id"/>
<association property="vip" column="vip_id" javaType="com.example.springbootstudy.pojo.Vip">
<id property="id" column="id"/>
<result property="level" column="level"/>
</association>
</resultMap>
<select id="getClients" resultMap="client_mapping">
select c.id,c.name,c.ID_Number,c.vip_id,v.id,v.level from client c left join vip v on c.vip_id = v.id;
</select>
<select id="getClientById" resultMap="client_mapping">
select c.id,c.name,c.ID_Number,c.vip_id,v.id,v.level from client c left join vip v on c.vip_id = v.id where c.id = #{id};
</select>
<insert id="addClient">
insert into client values(null,#{name},#{ID_Number},#{vip_id});
</insert>
<delete id="delClient">
delete from client where id = #{id};
</delete>
<update id="updateClient">
update client
<set>
<if test="name != null">
name = #{name},
</if>
<if test="ID_Number != null">
ID_Number = #{ID_Number},
</if>
<if test="vip_id != null">
vip_id = #{vip_id},
</if>
</set>
where id = #{id};
</update>
</mapper>