modify

jiangqs

2023-04-26 d423be0136f514954914529298e7001ad963b00c

 ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/order/ShoppingCartServiceImpl.java

@@ -1,10 +1,23 @@
package com.ruoyi.system.service.impl.order;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.system.constant.AppErrorConstant;
import com.ruoyi.system.domain.dto.AppBaseBathDto;
import com.ruoyi.system.domain.dto.AppShoppingCartAddDto;
import com.ruoyi.system.domain.dto.AppShoppingCartChangeDto;
import com.ruoyi.system.domain.pojo.activity.ActivityGoods;
import com.ruoyi.system.domain.pojo.goods.Goods;
import com.ruoyi.system.domain.pojo.order.ShoppingCart;
import com.ruoyi.system.mapper.order.ShoppingCartMapper;
import com.ruoyi.system.service.goods.GoodsService;
import com.ruoyi.system.service.order.ShoppingCartService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.Date;

/**
 * <p>
@@ -17,4 +30,67 @@
@Service
public class ShoppingCartServiceImpl extends ServiceImpl<ShoppingCartMapper, ShoppingCart> implements ShoppingCartService {

    @Resource
    private GoodsService goodsService;

    @Resource
    private ShoppingCartMapper shoppingCartMapper;

    /**
     * 添加购物车
     * @param appShoppingCartAddDto
     */
    @Override
    public void addShoppingCart(AppShoppingCartAddDto appShoppingCartAddDto){
        Long goodsId = appShoppingCartAddDto.getGoodsId();
        Goods goods = goodsService.getById(goodsId);
        if(goods.getGoodsStatus()!=1){
            throw new ServiceException(AppErrorConstant.GOODS_DOWN);
        }
        LambdaQueryWrapper<ShoppingCart> queryWrapper = Wrappers.lambdaQuery();
        queryWrapper.eq(ShoppingCart::getDelFlag, 0).eq(ShoppingCart::getGoodsId, goodsId);
        ShoppingCart shoppingCart = this.getOne(queryWrapper);
        if(shoppingCart==null){
            shoppingCart = new ShoppingCart();
            shoppingCart.setUserId(appShoppingCartAddDto.getUserId());
            shoppingCart.setShopId(appShoppingCartAddDto.getShopId());
            shoppingCart.setBuyNum(appShoppingCartAddDto.getBuyNum());
            shoppingCart.setDelFlag(0);
            shoppingCart.setCreateTime(new Date());
            this.save(shoppingCart);
        }else{
            shoppingCart.setBuyNum(shoppingCart.getBuyNum()+appShoppingCartAddDto.getBuyNum());
            shoppingCart.setUpdateTime(new Date());
            this.saveOrUpdate(shoppingCart);
        }
    }

    /**
     * 修改购物车数量
     * @param appShoppingCartChangeDto
     */
    @Override
    public void changeShoppingCart(AppShoppingCartChangeDto appShoppingCartChangeDto){
        Long goodsId = appShoppingCartChangeDto.getGoodsId();
        Goods goods = goodsService.getById(goodsId);
        if(goods.getGoodsStatus()!=1){
            throw new ServiceException(AppErrorConstant.GOODS_DOWN);
        }
        LambdaQueryWrapper<ShoppingCart> queryWrapper = Wrappers.lambdaQuery();
        queryWrapper.eq(ShoppingCart::getDelFlag, 0).eq(ShoppingCart::getGoodsId, goodsId);
        ShoppingCart shoppingCart = this.getOne(queryWrapper);
        shoppingCart.setBuyNum(appShoppingCartChangeDto.getBuyNum());
        shoppingCart.setUpdateTime(new Date());
        this.saveOrUpdate(shoppingCart);
    }

    /**
     * 删除购物车
     * @param appBaseBathDto
     */
    @Override
    public void deleteShoppingCart(AppBaseBathDto appBaseBathDto){
        String ids = appBaseBathDto.getIds();
        shoppingCartMapper.deleteShoppingCartByIds(ids);
    }
}