bytesailing/hx-purchase/src/main/resources/mapper/subscribe/SubscribeDetailMapper.xml

<?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.fjhx.purchase.mapper.subscribe.SubscribeDetailMapper">
    <select id="getPage" resultType="com.fjhx.purchase.entity.subscribe.vo.SubscribeDetailVo">
        SELECT
            t1.*,
            t2.`code` AS subscribeCode,
            t2.subcribe_content AS subscribeContent,
            t2.subcribe_time AS subcribeTime,
            t2.subcribe_name AS subcribeName,
            t2.id AS subcribeId
        FROM
            subscribe_detail t1
        LEFT JOIN subscribe t2 ON t1.subscribe_id = t2.id
            ${ew.customSqlSegment}
    </select>

    <select id="getDetail" resultType="com.fjhx.purchase.entity.subscribe.vo.SubscribeDetailVo">
        SELECT
            t1.*,
            IFNULL( SUM( t2.count ), 0 ) AS purchaseCount
        FROM
            subscribe_detail t1
        LEFT JOIN purchase_detail t2 ON t1.id = t2.subscribe_detail_id
        <where>
            <if test="ids neq null and ids.size() > 0">
                <foreach collection="ids" item="id" open="t1.id IN (" separator="," close=")">
                    #{id}
                </foreach>
            </if>
        </where>
        GROUP BY
            t1.id
    </select>
</mapper>