<?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.gxwebsoft.shop.mapper.GoodsSpecMapper">

    <!-- 关联查询sql -->
    <sql id="selectSql">
        SELECT a.*
        FROM shop_goods_spec a
        <where>
            <if test="param.id != null">
                AND a.id = #{param.id}
            </if>
            <if test="param.goodsId != null">
                AND a.goods_id = #{param.goodsId}
            </if>
            <if test="param.specId != null">
                AND a.spec_id = #{param.specId}
            </if>
            <if test="param.specName != null">
                AND a.spec_name LIKE CONCAT('%', #{param.specName}, '%')
            </if>
            <if test="param.specValue != null">
                AND a.spec_value LIKE CONCAT('%', #{param.specValue}, '%')
            </if>
            <if test="param.type != null">
                AND a.type = #{param.type}
            </if>
            <if test="param.keywords != null">
                AND (a.comments LIKE CONCAT('%', #{param.keywords}, '%')
                )
              </if>
        </where>
    </sql>

    <!-- 分页查询 -->
    <select id="selectPageRel" resultType="com.gxwebsoft.shop.entity.GoodsSpec">
        <include refid="selectSql"></include>
    </select>

    <!-- 查询全部 -->
    <select id="selectListRel" resultType="com.gxwebsoft.shop.entity.GoodsSpec">
        <include refid="selectSql"></include>
    </select>

</mapper>
