商城：完善购物车的逻辑
YunaiV
3 years ago
parent
2113e825d7
commit
da162853ec
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package cn.iocoder.yudao.module.trade.controller.app.cart.vo;
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import cn.iocoder.yudao.module.trade.controller.app.base.sku.AppProductSkuBaseRespVO;
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import cn.iocoder.yudao.module.trade.controller.app.base.spu.AppProductSpuBaseRespVO;
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import io.swagger.v3.oas.annotations.media.Schema;
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import lombok.Data;
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import java.util.List;
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@Schema(description = "用户 App - 用户的购物列表 Response VO")
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@Data
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public class AppTradeCartListRespVO {
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/**
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* 有效的购物项数组
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*/
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private List<Cart> validList;
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/**
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* 无效的购物项数组
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*/
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private List<Cart> invalidList;
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@Schema(description = "购物项")
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@Data
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public static class Cart {
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@Schema(description = "购物项的编号", required = true, example = "1024")
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private Long id;
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@Schema(description = "商品数量", required = true, example = "1")
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private Integer count;
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/**
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* 商品 SPU
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*/
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private AppProductSpuBaseRespVO spu;
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/**
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* 商品 SKU
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*/
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private AppProductSkuBaseRespVO sku;
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}
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}
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package cn.iocoder.yudao.module.trade.convert.cart;
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import cn.iocoder.yudao.module.promotion.api.price.dto.PriceCalculateReqDTO;
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import cn.iocoder.yudao.module.promotion.api.price.dto.PriceCalculateRespDTO;
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import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartDetailRespVO;
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import cn.iocoder.yudao.module.trade.dal.dataobject.cart.TradeCartItemDO;
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import cn.iocoder.yudao.module.product.api.sku.dto.ProductSkuRespDTO;
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import cn.iocoder.yudao.module.product.api.spu.dto.ProductSpuRespDTO;
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import cn.iocoder.yudao.module.product.enums.spu.ProductSpuStatusEnum;
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import cn.iocoder.yudao.module.trade.controller.app.base.sku.AppProductSkuBaseRespVO;
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import cn.iocoder.yudao.module.trade.controller.app.base.spu.AppProductSpuBaseRespVO;
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import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartListRespVO;
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import cn.iocoder.yudao.module.trade.dal.dataobject.cart.TradeCartDO;
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import org.mapstruct.Mapper;
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import org.mapstruct.Mapping;
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import org.mapstruct.Mappings;
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import org.mapstruct.factory.Mappers;
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import java.util.Collections;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertList;
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import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertMap;
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@Mapper
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public interface TradeCartConvert {
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TradeCartConvert INSTANCE = Mappers.getMapper(TradeCartConvert.class);
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default AppTradeCartDetailRespVO buildEmptyAppTradeCartDetailRespVO() {
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return new AppTradeCartDetailRespVO().setItemGroups(Collections.emptyList())
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.setOrder(new AppTradeCartDetailRespVO.Order().setSkuOriginalPrice(0).setSkuPromotionPrice(0)
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.setOrderPromotionPrice(0).setDeliveryPrice(0).setPayPrice(0));
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default AppTradeCartListRespVO convertList(List<TradeCartDO> carts,
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List<ProductSpuRespDTO> spus, List<ProductSkuRespDTO> skus) {
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Map<Long, ProductSpuRespDTO> spuMap = convertMap(spus, ProductSpuRespDTO::getId);
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Map<Long, ProductSkuRespDTO> skuMap = convertMap(skus, ProductSkuRespDTO::getId);
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// 遍历，开始转换
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List<AppTradeCartListRespVO.Cart> validList = new ArrayList<>(carts.size());
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List<AppTradeCartListRespVO.Cart> invalidList = new ArrayList<>();
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carts.forEach(cart -> {
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AppTradeCartListRespVO.Cart cartVO = new AppTradeCartListRespVO.Cart();
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cartVO.setId(cart.getId()).setCount(cart.getCount());
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ProductSpuRespDTO spu = spuMap.get(cart.getSpuId());
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ProductSkuRespDTO sku = skuMap.get(cart.getSkuId());
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cartVO.setSpu(convert(spu)).setSku(convert(sku));
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// 如果 spu 或 sku 不存在，或者 spu 被禁用，说明是非法的，或者 sku 库存不足
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if (spu == null
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|| sku == null
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|| !ProductSpuStatusEnum.isEnable(spu.getStatus())
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|| sku.getStock() <= 0) {
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invalidList.add(cartVO);
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} else {
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validList.add(cartVO);
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}
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});
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return new AppTradeCartListRespVO().setValidList(validList).setValidList(invalidList);
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}
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default PriceCalculateReqDTO convert(Long userId, List<TradeCartItemDO> cartItems) {
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return new PriceCalculateReqDTO().setUserId(userId)
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.setItems(convertList(cartItems, cartItem -> new PriceCalculateReqDTO.Item().setSkuId(cartItem.getSkuId())
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.setCount(cartItem.getSelected() ? cartItem.getCount() : 0)));
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}
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// ========== AppTradeCartDetailRespVO 相关 ==========
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AppTradeCartDetailRespVO.Promotion convert(PriceCalculateRespDTO.Promotion bean);
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@Mappings({
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@Mapping(source = "cartItem.count", target = "count")
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})
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AppTradeCartDetailRespVO.Sku convert(PriceCalculateRespDTO.OrderItem orderItem, TradeCartItemDO cartItem);
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AppTradeCartDetailRespVO.Order convert(PriceCalculateRespDTO.Order bean);
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AppProductSpuBaseRespVO convert(ProductSpuRespDTO spu);
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AppProductSkuBaseRespVO convert(ProductSkuRespDTO sku);
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}
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@ -1,47 +0,0 @@
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package cn.iocoder.yudao.module.trade.dal.mysql.cart;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.map.MapUtil;
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import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
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import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
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import cn.iocoder.yudao.module.trade.dal.dataobject.cart.TradeCartItemDO;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import org.apache.ibatis.annotations.Mapper;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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@Mapper
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public interface TradeCartItemMapper extends BaseMapperX<TradeCartItemDO> {
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default TradeCartItemDO selectByUserIdAndSkuId(Long userId, Long skuId) {
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return selectOne(TradeCartItemDO::getUserId, userId,
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TradeCartItemDO::getSkuId, skuId);
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}
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default List<TradeCartItemDO> selectListByUserIdAndSkuIds(Long userId, Collection<Long> skuIds) {
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return selectList(new LambdaQueryWrapper<TradeCartItemDO>().eq(TradeCartItemDO::getUserId, userId)
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.in(TradeCartItemDO::getSkuId, skuIds));
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}
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default void updateByIds(Collection<Long> ids, TradeCartItemDO updateObject) {
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update(updateObject, new LambdaQueryWrapper<TradeCartItemDO>().in(TradeCartItemDO::getId, ids));
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}
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default Integer selectSumByUserId(Long userId) {
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// SQL sum 查询
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List<Map<String, Object>> result = selectMaps(new QueryWrapper<TradeCartItemDO>()
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.select("SUM(count) AS sumCount")
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.eq("user_id", userId));
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// 获得数量
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return CollUtil.isNotEmpty(result) ? MapUtil.getInt(result.get(0), "sumCount") : 0;
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}
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default List<TradeCartItemDO> selectListByUserId(Long userId, Boolean selected) {
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return selectList(new LambdaQueryWrapperX<TradeCartItemDO>().eq(TradeCartItemDO::getUserId, userId)
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.eqIfPresent(TradeCartItemDO::getSelected, selected));
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}
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}
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package cn.iocoder.yudao.module.trade.dal.mysql.cart;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.map.MapUtil;
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import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
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import cn.iocoder.yudao.module.trade.dal.dataobject.cart.TradeCartDO;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import org.apache.ibatis.annotations.Mapper;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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@Mapper
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public interface TradeCartMapper extends BaseMapperX<TradeCartDO> {
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default TradeCartDO selectByUserIdAndSkuId(Long userId, Long skuId,
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Boolean addStatus, Boolean orderStatus) {
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return selectOne(TradeCartDO::getUserId, userId,
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TradeCartDO::getSkuId, skuId,
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TradeCartDO::getAddStatus, addStatus,
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TradeCartDO::getOrderStatus, orderStatus);
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}
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default Integer selectSumByUserId(Long userId) {
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// SQL sum 查询
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List<Map<String, Object>> result = selectMaps(new QueryWrapper<TradeCartDO>()
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.select("SUM(count) AS sumCount")
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.eq("user_id", userId)
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.eq("add_status", true) // 只计算添加到购物车中的
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.eq("order_status", false)); // 必须未下单
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// 获得数量
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return CollUtil.getFirst(result) != null ? MapUtil.getInt(result.get(0), "sumCount") : 0;
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}
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default TradeCartDO selectById(Long id, Long userId) {
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return selectOne(TradeCartDO::getId, id,
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TradeCartDO::getUserId, userId);
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}
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default List<TradeCartDO> selectListByIds(Collection<Long> ids, Long userId) {
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return selectList(new LambdaQueryWrapper<TradeCartDO>()
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.in(TradeCartDO::getId, ids)
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.eq(TradeCartDO::getUserId, userId));
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}
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default List<TradeCartDO> selectListByUserId(Long userId) {
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return selectList(TradeCartDO::getUserId, userId);
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}
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default void updateByIds(Collection<Long> ids, TradeCartDO updateObject) {
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update(updateObject, new LambdaQueryWrapper<TradeCartDO>().in(TradeCartDO::getId, ids));
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}
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}
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