<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.ruoyi.measuringinstrumentledger.mapper.SparePartsMapper">
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<select id="listPage" resultType="com.ruoyi.measuringinstrumentledger.dto.SparePartsDto">
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select sp.*, sp1.name as parentName,
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<!-- 2026-10-12 修复：前端列表第一列取的是 deviceNameStr，但 DTO 和 SQL 都没有这个字段，
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导致「设备名称」列永远空白（看起来像"没绑定设备"）。
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这里按 spare_parts.device_ids（逗号分隔）反查 device_ledger 拼出设备名。 -->
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(select group_concat(d.device_name order by d.id separator ',')
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from device_ledger d
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where sp.device_ids is not null and sp.device_ids <> ''
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and find_in_set(d.id, sp.device_ids)) as deviceNameStr
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from spare_parts sp
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left join spare_parts sp1 on sp1.id = sp.parent_id
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<where>
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<if test="spareParts.name != null and spareParts.name != ''">
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and sp.name like concat('%',#{spareParts.name},'%')
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</if>
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</where>
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</select>
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</mapper>
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