klp-oa/klp-mes/src/main/resources/mapper/roll/MesRollChangeMapper.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.klp.mes.roll.mapper.MesRollChangeMapper">

    <!-- 查询指定机架最新一次换辊记录（即当前在机轧辊） -->
    <select id="selectLatestByStand" resultType="com.klp.mes.roll.domain.vo.MesRollChangeVo">
        SELECT change_id, change_no, change_time, stand_no, change_type, change_status, operator,
               upper_wr_no, upper_wr_dia, lower_wr_no, lower_wr_dia,
               upper_br_no, upper_br_dia, lower_br_no, lower_br_dia,
               remark, create_time
        FROM mes_roll_change
        WHERE del_flag = 0
          AND stand_no = #{standNo}
        ORDER BY change_time DESC, change_id DESC
        LIMIT 1
    </select>

    <!-- 按辊位查最新非空换辊记录（支持部分换辊） -->
    <select id="selectLatestByStandAndPosition" resultType="com.klp.mes.roll.domain.vo.MesRollChangeVo">
        SELECT change_id, change_no, change_time, stand_no, operator,
               upper_wr_no, upper_wr_dia, lower_wr_no, lower_wr_dia,
               upper_br_no, upper_br_dia, lower_br_no, lower_br_dia
        FROM mes_roll_change
        WHERE del_flag = 0 AND stand_no = #{standNo}
        <choose>
            <when test="posType == 'upperWr'">AND upper_wr_no IS NOT NULL AND upper_wr_no != ''</when>
            <when test="posType == 'lowerWr'">AND lower_wr_no IS NOT NULL AND lower_wr_no != ''</when>
            <when test="posType == 'upperBr'">AND upper_br_no IS NOT NULL AND upper_br_no != ''</when>
            <when test="posType == 'lowerBr'">AND lower_br_no IS NOT NULL AND lower_br_no != ''</when>
        </choose>
        ORDER BY change_time DESC, change_id DESC
        LIMIT 1
    </select>

    <!-- 组合查询各辊位当前实际在机状态（每个位置独立取最新非空记录） -->
    <select id="selectCurrentStateByStand" resultType="map">
        SELECT
            (SELECT upper_wr_no  FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND upper_wr_no  IS NOT NULL AND upper_wr_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS upperWrNo,
            (SELECT upper_wr_dia FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND upper_wr_no  IS NOT NULL AND upper_wr_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS upperWrDia,
            (SELECT lower_wr_no  FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND lower_wr_no  IS NOT NULL AND lower_wr_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS lowerWrNo,
            (SELECT lower_wr_dia FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND lower_wr_no  IS NOT NULL AND lower_wr_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS lowerWrDia,
            (SELECT upper_br_no  FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND upper_br_no  IS NOT NULL AND upper_br_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS upperBrNo,
            (SELECT upper_br_dia FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND upper_br_no  IS NOT NULL AND upper_br_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS upperBrDia,
            (SELECT lower_br_no  FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND lower_br_no  IS NOT NULL AND lower_br_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS lowerBrNo,
            (SELECT lower_br_dia FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0 AND lower_br_no  IS NOT NULL AND lower_br_no  != '' ORDER BY change_time DESC, change_id DESC LIMIT 1) AS lowerBrDia,
            (SELECT MAX(change_time) FROM mes_roll_change WHERE stand_no = #{standNo} AND del_flag = 0) AS changeTime
    </select>

    <!-- 查询同机架在本次换辊之后最近一次换辊的时间 -->
    <select id="selectNextChangeTime" resultType="java.util.Date">
        SELECT MIN(change_time)
        FROM mes_roll_change
        WHERE del_flag = 0
          AND stand_no = #{standNo}
          AND change_time > #{changeTime}
    </select>

    <!--
        统计 [startTime, endTime) 时间段内，符合条件的卷料生产三项汇总：
          coilCount   — 卷数（COUNT DISTINCT coil_id）
          totalLength  — 实测长度之和（mm）
          totalWeight  — 净重之和（net_weight 原始单位）
        endTime 为 null 时取 NOW() 作为上界。
    -->
    <select id="selectCoilStats" resultType="map">
        SELECT
            COUNT(DISTINCT mc.coil_id)      AS coilCount,
            IFNULL(SUM(mc.actual_length), 0) AS totalLength,
            IFNULL(SUM(mc.net_weight),    0) AS totalWeight
        FROM wms_coil_pending_action cpa
        INNER JOIN wms_material_coil mc
            ON FIND_IN_SET(mc.coil_id, cpa.processed_coil_ids) &gt; 0
        WHERE cpa.del_flag = 0
          AND cpa.action_status = 2
          AND cpa.action_type IN (205, 504, 524)
          AND cpa.create_time &gt;= #{startTime}
          AND cpa.create_time &lt;  IFNULL(#{endTime}, NOW())
          AND mc.create_time  &gt;= #{startTime}
          AND mc.create_time  &lt;  IFNULL(#{endTime}, NOW())
    </select>

</mapper>