zhanghua
2022-12-29 8aba8319f206eb3ae3f3041128c7f73bdaef4fd6
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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.ycl.mapper.message.MessageColumnSetMapper">
 
    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.ycl.entity.message.MessageColumnSet">
        <id column="id" property="id" />
        <result column="user_id" property="userId" />
        <result column="message_column_id" property="messageColumnId" />
        <result column="is_receive" property="isReceive" />
    </resultMap>
 
    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, user_id, message_column_id, is_receive
    </sql>
 
    <select id="selectColumnAndCount" resultType="com.ycl.vo.message.MessageColumnSetVO" >
        SELECT
        count( 1 ) AS messageNumber,
        t2.column_name AS columnName
        FROM
        `ums_message_column_set` t1
        LEFT JOIN ums_message_column t2 ON t1.message_column_id = t2.id
        LEFT JOIN ums_message t3 ON t2.id = t3.message_type
        <where>
            t1.is_receive=1
            <if test="userId !=null">
              and   t1.user_id = #{userId}
            </if>
        </where>
        GROUP BY
        t2.column_name
    </select>
 
</mapper>