/// <summary>
/// 将指定的商品添加到指定客户的购物篮里。
/// </summary>
/// <param name="customerID">用于指代特定客户对象的全局唯一标识。</param>
/// <param name="productID">用于指代特定商品对象的全局唯一标识。</param>
public void AddProductToCart(Guid customerID, Guid productID, int quantity)
{
var user = userRepository.Get(customerID);
var shoppingCart = shoppingCartRepository.FindShoppingCartByUser(user);
if (shoppingCart == null)
{
throw new LException("Shopping cart doesn't exist for customer {0}.", customerID);
}
var product = productRepository.Get(productID);
var shoppingCartItem = shoppingCartItemRepository.FindItem(shoppingCart, product);
if (shoppingCartItem == null)
{
shoppingCartItem = new ShoppingCartItem(product, shoppingCart, quantity);
shoppingCartItemRepository.Insert(shoppingCartItem);
}
else
{
shoppingCartItem.UpdateQuantity(shoppingCartItem.Quantity + quantity);
shoppingCartItemRepository.Update(shoppingCartItem);
}
Context.Commit();
}
public bool Add(ShoppingCartItem shoppingCartItem)
{
// valida quantidade
if(shoppingCartItem.ProductQuantity <= 0)
{
throw new ArgumentException($"Quantidade invalida");
}
if (_productBusiness.GetById(shoppingCartItem.ProductId) == null)
throw new ArgumentException($"Produto não encontrado : {shoppingCartItem.ProductId}");
return _shoppingCartItemRepository.Insert(shoppingCartItem);
}
public void AddToCart(string customerUsername, ShoppingCartItem entity)
{
var product = _productRepository.GetById(entity.ProductId);
product.StockQuantity -= entity.Quantity;
_productRepository.Update(product);
var shoppingCartItem = _shoppingCartItemRepository.GetEx(s => s.CustomerUserName == customerUsername && s.ProductId == entity.ProductId).FirstOrDefault();
if (shoppingCartItem == null)
{
_shoppingCartItemRepository.Insert(entity);
}
else
{
_shoppingCartItemRepository.Update(entity);
}
}