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@ -0,0 +1,31 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.yami.shop.dao.CategoryBrandMapper">
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<!-- resultMap定义了数据库表字段与Java对象属性之间的映射关系 -->
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<resultMap id="BaseResultMap" type="com.yami.shop.bean.model.CategoryBrand">
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<!--
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@mbg.generated 表示这个注释是由MyBatis Generator自动生成的，用于警告不要手动编辑
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-->
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<id column="id" jdbcType="BIGINT" property="id" />
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<result column="category_id" jdbcType="BIGINT" property="categoryId" />
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<result column="brand_id" jdbcType="BIGINT" property="brandId" />
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</resultMap>
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<!-- 插入语句，批量插入分类品牌关系 -->
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<insert id="insertCategoryBrand">
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insert into tz_category_brand (category_id,brand_id) values
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<!-- foreach循环遍历brandIds列表，为每个品牌ID生成一个插入语句 -->
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<foreach collection="brandIds" item="brandId" separator=",">
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(#{categoryId},#{brandId})
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</foreach>
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</insert>
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<!-- 删除语句，根据分类ID删除分类品牌关系 -->
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<delete id="deleteByCategoryId">
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delete from tz_category_brand where category_id = #{categoryId}
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</delete>
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<!-- 删除语句，根据品牌ID删除分类品牌关系 -->
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<delete id="deleteByBrandId">
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delete from tz_category_brand where brand_id = #{brandId}
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</delete>
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</mapper>
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