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购物车：增加获得商品数量 Map 接口

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This commit is contained in:
YunaiV 2023-05-03 09:20:17 +08:00
parent 9980b12551
commit 6b05835cb3
5 changed files with 43 additions and 1 deletions
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5
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/controller/app/cart/TradeCartController.http
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@ -31,6 +31,11 @@ GET {{appApi}}/trade/cart/get-count
tenant-id: {{appTenentId}}
Authorization: Bearer {{appToken}}
### 请求 /trade/cart/get-count-map 接口 => 成功
GET {{appApi}}/trade/cart/get-count-map
tenant-id: {{appTenentId}}
Authorization: Bearer {{appToken}}
### 请求 /trade/cart/list 接口 => 成功
GET {{appApi}}/trade/cart/list
tenant-id: {{appTenentId}}

10
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/controller/app/cart/TradeCartController.java
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@ -2,8 +2,8 @@ package cn.iocoder.yudao.module.trade.controller.app.cart;
import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.security.core.annotations.PreAuthenticated;
import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartListRespVO;
import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartAddReqVO;
import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartListRespVO;
import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartResetReqVO;
import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartUpdateReqVO;
import cn.iocoder.yudao.module.trade.service.cart.TradeCartService;
@ -18,6 +18,7 @@ import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import javax.validation.Valid;
import java.util.List;
import java.util.Map;
import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
@ -72,6 +73,13 @@ public class TradeCartController {
return success(cartService.getCartCount(getLoginUserId()));
}
@GetMapping("get-count-map")
@Operation(summary = "查询用户在购物车中的商品 SPU 数量 Map")
@PreAuthenticated
public CommonResult<Map<Long, Integer>> getCartCountMap() {
return success(cartService.getCartCountMap(getLoginUserId()));
}
@GetMapping("/list")
@Operation(summary = "查询用户的购物车列表")
@PreAuthenticated

14
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/dal/mysql/cart/TradeCartMapper.java
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@ -2,6 +2,7 @@ package cn.iocoder.yudao.module.trade.dal.mysql.cart;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.map.MapUtil;
import cn.iocoder.yudao.framework.common.util.collection.CollectionUtils;
import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
import cn.iocoder.yudao.module.trade.dal.dataobject.cart.TradeCartDO;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
@ -34,6 +35,19 @@ public interface TradeCartMapper extends BaseMapperX<TradeCartDO> {
return CollUtil.getFirst(result) != null ? MapUtil.getInt(result.get(0), "sumCount") : 0;
}
default Map<Long, Integer> selectSumMapByUserId(Long userId) {
// SQL sum 查询
List<Map<String, Object>> result = selectMaps(new QueryWrapper<TradeCartDO>()
.select("spu_id, SUM(count) AS sumCount")
.eq("user_id", userId)
.eq("add_status", true) // 只计算添加到购物车中的
.eq("order_status", false) // 必须未下单
.groupBy("spu_id"));
// 获得数量
return CollectionUtils.convertMap(result, item -> MapUtil.getLong(item, "spu_id"),
item -> MapUtil.getInt(item, "sumCount"));
}
default TradeCartDO selectById(Long id, Long userId) {
return selectOne(TradeCartDO::getId, id,
TradeCartDO::getUserId, userId);

9
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/cart/TradeCartService.java
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@ -7,6 +7,7 @@ import cn.iocoder.yudao.module.trade.controller.app.cart.vo.AppTradeCartUpdateRe
import javax.validation.Valid;
import java.util.Collection;
import java.util.Map;
/**
* 购物车 Service 接口
@ -66,4 +67,12 @@ public interface TradeCartService {
*/
AppTradeCartListRespVO getCartList(Long userId);
/**
* 获得用户的购物车商品 SPU 数量的 Map
*
* @param userId 用户编号
* @return 购物车商品 SPU 数量的 Map
*/
Map<Long, Integer> getCartCountMap(Long userId);
}

6
yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/cart/TradeCartServiceImpl.java
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@ -20,6 +20,7 @@ import javax.annotation.Resource;
import java.util.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSet;
@ -138,6 +139,11 @@ public class TradeCartServiceImpl implements TradeCartService {
return cartMapper.selectSumByUserId(userId);
}
@Override
public Map<Long, Integer> getCartCountMap(Long userId) {
return cartMapper.selectSumMapByUserId(userId);
}
@Override
public AppTradeCartListRespVO getCartList(Long userId) {
// 获得购物车的商品，只查询未下单的