// 将指定的商品归类到指定的商品分类中。
public ProductCategorization Categorize(NativeProduct product, Category category)
{
if (product == null)
throw new ArgumentNullException("product");
if (category == null)
throw new ArgumentNullException("category");
var productCategorization =
_productCategorizationRepository.GetBySpecification(
Specification<ProductCategorization>.Eval(c => c.ProductId == product.Id));
if (productCategorization == null)
{
productCategorization = ProductCategorization.CreateCategorization(product, category);
_productCategorizationRepository.Add(productCategorization);
}
else
{
productCategorization.CategoryId = category.Id;
_productCategorizationRepository.Update(productCategorization);
}
_repositoryContext.Commit();
return productCategorization;
}
/// <summary>
/// 团购直接下单、待付款
/// </summary>
/// <param name="user"></param>
/// <param name="product"></param>
/// <param name="count"></param>
/// <returns></returns>
public Order CreateOrderDirect(User user, NativeProduct product, int count)
{
var order = new Order();
if (count == 0 || product == null)
{
throw new InvalidOperationException("没有任何商品购买");
}
order.OrderItems = new List<OrderItem>();
var orderItem = new OrderItem();
orderItem.Id = Guid.NewGuid();
orderItem.Product = product;
orderItem.Quantity = count;
orderItem.Order = order;
order.OrderItems.Add(orderItem);
order.User = user;
order.DeliveryAddress = user.DeliveryAddress;
order.Status = DictOrderStatus.创建;//先创建订单，付款需要用到订单号
_orderRepository.Add(order);
_repositoryContext.Commit();
return order;
}
// 将指定的商品从其所属的商品分类中移除
public void Uncategorize(NativeProduct product, Category category = null)
{
Expression<Func<ProductCategorization, bool>> specExpress = null
;
if (category == null)
specExpress = p => p.ProductId == product.Id;
else
specExpress = p => p.ProductId == product.Id && p.CategoryId == category.Id;
var productCategorization = _productCategorizationRepository.GetByExpression(specExpress);
if (productCategorization == null) return;
_productCategorizationRepository.Remove(productCategorization);
_repositoryContext.Commit();
}
// 通过商品对象和分类对象来创建商品分类对象
public static ProductCategorization CreateCategorization(NativeProduct product, Category category)
{
return new ProductCategorization(product.Id, category.Id);
}