/// <summary>
/// 添加信息信息
/// </summary>
/// <param name="inputDtos">要添加的店铺信息DTO信息</param>
/// <returns>业务操作结果</returns>
public async Task <OperationResult> AddCartGoodses(params CartGoodsInputDto[] inputDtos)
{
CartGoodsRepository.UnitOfWork.TransactionEnabled = true;
List <string> names = new List <string>();
foreach (CartGoodsInputDto dto in inputDtos)
{
CartGoods cartGoods = dto.MapTo <CartGoods>();
if (dto.GoodsId.HasValue && dto.GoodsId.Value > 0)
{
Goods.Models.Goods goods = GoodsRepository.GetByKey(dto.GoodsId.Value);
if (goods == null)
{
throw new Exception("商品不存在");
}
cartGoods.Goods = goods;
}
if (dto.UserId.HasValue && dto.UserId.Value > 0)
{
User user = UserRepository.GetByKey(dto.UserId.Value);
if (user == null)
{
throw new Exception("用户不存在");
}
cartGoods.User = user;
}
if (dto.SkuId.HasValue && dto.SkuId.Value > 0)
{
Goods.Models.Sku sku = SkuRepository.GetByKey(dto.SkuId.Value);
if (sku == null)
{
throw new Exception("Sku不存在");
}
cartGoods.Sku = sku;
}
//判断商品的重复性，如果是相同商品相同规格只改变购物数量
CartGoods repeatCartGoods = CartGoodsRepository.Entities.SingleOrDefault(cg => cg.User.Id == dto.UserId.Value && cg.Goods.Id == dto.GoodsId.Value && cg.Sku.Id == dto.SkuId.Value);
if (repeatCartGoods == null)
{
await CartGoodsRepository.InsertAsync(cartGoods);
}
else
{
repeatCartGoods.BuyCount += dto.BuyCount;
await CartGoodsRepository.UpdateAsync(repeatCartGoods);
}
names.Add(cartGoods.Name);
}
return(await CartGoodsRepository.UnitOfWork.SaveChangesAsync() > 0
? new OperationResult(OperationResultType.Success, $"“{names.ExpandAndToString()}”创建成功")
: OperationResult.NoChanged);
}
/// <summary>
/// 检查信息信息是否存在
/// </summary>
/// <param name="predicate">检查谓语表达式</param>
/// <param name="id">更新的信息编号</param>
/// <returns>信息是否存在</returns>
public bool CheckCartGoodses(Expression <Func <CartGoods, bool> > predicate, int id = 0)
{
return(CartGoodsRepository.CheckExists(predicate, id));
}
/// <summary>
/// 删除信息信息
/// </summary>
/// <param name="ids">要删除的店铺信息编号</param>
/// <returns>业务操作结果</returns>
public OperationResult DeleteCartGoodses(params int[] ids)
{
return(CartGoodsRepository.Delete(ids));
}
