caimei365-hehe/src/main/resources/mapper/ShoppingCartMapper.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.caimei.mapper.ShoppingCartMapper">
    <select id="findCartProduct" resultType="com.caimei.model.po.CmCartPo">
        SELECT cm_cartID AS cartId,
               productID,
               skuId,
               userID,
               productCount,
               addTime,
               reBuyFlag,
               heUserId
        FROM cm_cart
        WHERE userID = #{userId}
          AND skuId = #{skuId}
          AND heUserId = #{heUserId}
    </select>

    <insert id="insertCart">
        INSERT INTO cm_cart (productID, userID, skuId, productCount, ADDTIME,
                             reBuyFlag, heUserId)
        VALUES ((select productId from cm_hehe_sku where skuId = #{skuId}), #{userId}, #{skuId}, #{productCount}, NOW(),
                0, #{heUserId})
    </insert>

    <update id="updateByProductCount">
        UPDATE
            cm_cart
        SET productCount = #{productCount}
        WHERE cm_cartID = #{cartId}
    </update>

    <update id="updateCart">
        update cm_cart
        set skuId=#{newSkuId},
            productCount=#{count}
        where cm_cartID = #{cartId}
    </update>

    <select id="getCartQuantity" resultType="integer">
        SELECT COUNT(cc.skuId)
        FROM cm_cart cc
                 LEFT JOIN cm_hehe_product chp ON cc.productID = chp.productId
        WHERE cc.userID = #{userId}
          AND chp.validFlag = 1
    </select>

    <select id="findCartShop" resultType="com.caimei.model.vo.ShopVo">
        SELECT s.shopID AS shopId,
               s.name,
               s.logo
        FROM cm_cart cc
                 LEFT JOIN cm_hehe_product chp ON cc.productID = chp.productId
                 LEFT JOIN product p ON cc.productID = p.productID
                 LEFT JOIN shop s ON p.shopID = s.shopID
        WHERE cc.userID = #{userId}
          AND chp.validFlag = 1
        GROUP BY s.shopID
        ORDER BY MAX(cc.addTime) DESC
    </select>

    <select id="getCartProductsByShopId" resultType="com.caimei.model.vo.CartProductVo">
        SELECT cc.skuId,
               cc.cm_cartID    AS cartId,
               cc.productID    AS productId,
               cc.productCount as num,
               cc.heUserId,
               chs.price,
               chs.price       as normalPrice,
               chp.includedTax,
               chp.invoiceType,
               chp.clubTaxPoint,
               p.name,
               p.shopID        AS shopId,
               p.mainImage     as productImage,
               cs.unit         as productUnit,
               cs.stock        as stock
        FROM cm_cart cc
                 LEFT JOIN cm_sku cs on cc.skuId = cs.skuId
                 LEFT JOIN cm_hehe_product chp ON cc.productID = chp.productId
                 LEFT JOIN cm_hehe_sku chs on cc.skuId = chs.skuId
                 LEFT JOIN product p ON cc.productID = p.productID
        WHERE cc.userID = #{userId}
          AND chp.validFlag = 1
          AND p.shopID = #{shopId}
    </select>

    <select id="getInvalidProducts" resultType="com.caimei.model.vo.CartProductVo">
        SELECT cc.skuId,
               cc.cm_cartID    AS cartId,
               cc.productID    AS productId,
               cc.productCount as num,
               chs.price,
               chp.includedTax,
               chp.invoiceType,
               chp.clubTaxPoint,
               p.name,
               p.shopID        AS shopId,
               p.mainImage     as productImage,
               cs.unit         as productUnit
        FROM cm_cart cc
                 LEFT JOIN cm_sku cs on cc.skuId = cs.skuId
                 LEFT JOIN cm_hehe_sku chs on cc.skuId = chs.skuId
                 LEFT JOIN cm_hehe_product chp ON cc.productID = chp.productId
                 LEFT JOIN product p ON cc.productID = p.productID
        WHERE cc.userID = #{userId}
          AND chp.validFlag = 2
    </select>

    <delete id="deleteCart">
        DELETE
        FROM cm_cart
        WHERE cm_cartID = #{cartId}
    </delete>
</mapper>