/// <summary>
/// 判断是否匹配
/// </summary>
public bool IsMatched(ProductMatchParameters parameters, ProductMatchedData data)
{
// 获取订购数量的条件
var orderCountGE = data.Conditions.GetOrderCountGE();
if (orderCountGE == null || orderCountGE <= 1)
{
return(true); // 没有指定条件
}
// 判断订购数量是否大于条件中指定的数量
var orderCount = parameters.GetOrderCount();
return(orderCount >= orderCountGE.Value);
}
/// <summary>
/// 添加购物车商品
/// 如果商品已在购物车则增加里面的数量
/// </summary>
/// <param name="session">会话</param>
/// <param name="productId">商品Id</param>
/// <param name="type">购物车商品类型</param>
/// <param name="parameters">商品匹配参数</param>
public virtual void AddOrIncrease(Session session,
Guid productId, CartProductType type, ProductMatchParameters parameters)
{
// 判断商品是否可以购买（只判断商品本身，不判断规格等匹配参数）
var productRepository = Application.Ioc.Resolve <ProductRepository>();
var product = productRepository.Get(p => p.Id == productId);
if (product == null)
{
throw new BadRequestException(new T("The product you are try to purchase does not exist."));
}
else if (!(product.GetProductState() is IAmPurchasable))
{
throw new BadRequestException(new T("The product you are try to purchase does not purchasable."));
}
// 获取订购数量
var orderCount = parameters.GetOrderCount();
if (orderCount <= 0)
{
throw new BadRequestException(new T("Order count must larger than 0"));
}
// 立刻购买时删除原有的购物车商品列表
// 加入购物车时获取现有的购物车商品列表，判断是否可以增加已有的数量
CartProduct increaseTo = null;
var existCartProducts = GetManyBySession(session, type).ToList();
if (type == CartProductType.Buynow)
{
existCartProducts.ForEach(p => Delete(p));
}
else
{
var comparers = Application.Ioc.ResolveMany <IProductMatchParametersComparer>();
increaseTo = existCartProducts.FirstOrDefault(cartProduct => {
// 比较商品是否相同
if (cartProduct.Product.Id != product.Id)
{
return(false);
}
// 比较匹配参数是否相同
var existParameters = cartProduct.MatchParameters;
return(comparers.All(c => c.IsPartialEqual(parameters, existParameters)));
});
}
// 修改到数据库
if (increaseTo != null)
{
// 修改已有的数量
Save(ref increaseTo, p => p.UpdateOrderCount(checked (p.Count + orderCount)));
}
else
{
// 添加新的购物车商品
var configManager = Application.Ioc.Resolve <GenericConfigManager>();
var orderSettings = configManager.GetData <OrderSettings>();
var userRepository = Application.Ioc.Resolve <UserRepository>();
var now = DateTime.UtcNow;
var cartProduct = new CartProduct()
{
Type = type,
Owner = userRepository.Get(u => u.Id == session.ReleatedId),
OwnerSessionId = (session.ReleatedId != null) ? null : (Guid?)session.Id,
Product = product,
Count = orderCount,
MatchParameters = parameters,
CreateTime = now,
ExpireTime = now.AddDays(
(type == CartProductType.Buynow) ?
orderSettings.BuynowCartProductExpiresDays :
orderSettings.NormalCartProductExpiresDays)
};
Save(ref cartProduct);
}
}