/*
*购物车存储说明：
* 游客访问时，点击加入购物车，购物车信息保存至Cookie中，游客点击结算时，Cookie中的购物车信息转移至数据库中并清空Cookie中购物车信息。
*登录会员点击加入购物车时，购物车信息保存至数据库中。
* Cookie存储格式： skuId1:count1,skuId2:count2,.....
*/
/// <summary>
/// 同步客户端购物车信息至服务器
/// </summary>
public void UpdateCartInfoFromCookieToServer(long memberId)
{
string cartInfo = WebHelper.GetCookie(CookieKeysCollection.HIMALL_CART);
if (!string.IsNullOrWhiteSpace(cartInfo))
{
string[] cartItems = cartInfo.Split(',');
var shoppingCartItems = new List <Himall.Entities.ShoppingCartItem>();
foreach (string cartItem in cartItems)
{
var cartItemParts = cartItem.Split(':');
shoppingCartItems.Add(new Himall.Entities.ShoppingCartItem()
{
SkuId = cartItemParts[0], Quantity = int.Parse(cartItemParts[1])
});
}
CartApplication.AddToCart(shoppingCartItems, memberId);
}
WebHelper.DeleteCookie(CookieKeysCollection.HIMALL_CART);
}
public void AddToCart(string skuId, int count, long memberId)
{
CheckSkuIdIsValid(skuId);
//判断库存
var sku = ProductManagerApplication.GetSKU(skuId);
if (sku == null)
{
throw new HimallException("错误的SKU");
}
if (count > sku.Stock)
{
throw new HimallException("库存不足");
}
#region 商品限购判断
var prouctInfo = ProductManagerApplication.GetProduct(sku.ProductId);
if (prouctInfo != null && prouctInfo.MaxBuyCount > 0 && !prouctInfo.IsOpenLadder)//商品有限购数量
{
var carInfo = CartApplication.GetCart(memberId);
if (carInfo != null)
{
var quantity = carInfo.Items.Where(p => p.ProductId == sku.ProductId).Sum(d => d.Quantity); //当前用户该商品已加入购物车数量
if (count + quantity > prouctInfo.MaxBuyCount) //已有数量+新数量
{
throw new HimallException(string.Format("每个ID限购{0}件", prouctInfo.MaxBuyCount));
}
}
}
#endregion
if (memberId > 0)
{
CartApplication.AddToCart(skuId, count, memberId);
}
else
{
string cartInfo = WebHelper.GetCookie(CookieKeysCollection.HIMALL_CART);
if (!string.IsNullOrWhiteSpace(cartInfo))
{
string[] cartItems = cartInfo.Split(',');
string newCartInfo = string.Empty;
bool exist = false;
foreach (string cartItem in cartItems)
{
var cartItemParts = cartItem.Split(':');
if (cartItemParts[0] == skuId)
{
newCartInfo += "," + skuId + ":" + (int.Parse(cartItemParts[1]) + count);
exist = true;
}
else
{
newCartInfo += "," + cartItem;
}
}
if (!exist)
{
newCartInfo += "," + skuId + ":" + count;
}
if (!string.IsNullOrWhiteSpace(newCartInfo))
{
newCartInfo = newCartInfo.Substring(1);
}
WebHelper.SetCookie(CookieKeysCollection.HIMALL_CART, newCartInfo);
}
else
{
WebHelper.SetCookie(CookieKeysCollection.HIMALL_CART, string.Format("{0}:{1}", skuId, count));
}
}
}
