/// <summary>
/// 添加商品到购物车
/// </summary>
protected void AddToCart()
{
int productId = RequestHelper.GetQueryString <int>("ProductId");
string productName = StringHelper.AddSafe(RequestHelper.GetQueryString <string>("ProductName"));
var cart = CartBLL.Read(productId, productName, base.UserId);
if (cart.Id < 1)
{
int buyCount = RequestHelper.GetQueryString <int>("BuyCount");
string standardValueList = RequestHelper.GetQueryString <string>("StandardValueList");
var product = ProductBLL.Read(productId);
cart.ProductId = productId;
cart.ProductName = productName;
cart.StandardValueList = standardValueList;
cart.BuyCount = buyCount;
cart.RandNumber = string.Empty;
cart.UserId = base.UserId;
cart.UserName = base.UserName;
CartBLL.Add(cart, base.UserId);
Sessions.ProductBuyCount += buyCount;
}
else
{
CartBLL.Update(new int[] { cart.Id }, ++cart.BuyCount, base.UserId);
}
ResponseHelper.Write("ok");
ResponseHelper.End();
}
/// <summary>
/// 登陆情况下的购物车
/// </summary>
private void OnlineCart()
{
int productId;
if (Int32.TryParse(Request["item"], out productId))
{
Books b = bookbll.QuerySingle(productId);
if (b != null)
{
// db 判断购物车中是否已存在该商品
Cart exist = cartbll.QuerySingle(new { BookId = productId, __o = "and", UserId = CurrentUser.Id });
if (exist != null)
{
// 如果已经存在
exist.Count += 1;
cartbll.Update(exist);
}
else
{
// 创建一个购物车对象加入到购物车表中
exist = new Cart();
exist.BookId = b.Id; // cart是否可能已经存在
exist.UserId = CurrentUser.Id;
exist.Count = 1;
cartbll.Insert(exist);
}
}
}
CartList = cartbll.GetCartInfos(CurrentUser.Id);
}
/// <summary>
/// 改变购买数量
/// </summary>
private void ChangeBuyCount()
{
string strCartId = StringHelper.SearchSafe(RequestHelper.GetQueryString <string>("StrCartId"));
int buyCount = RequestHelper.GetQueryString <int>("BuyCount");
int oldCount = RequestHelper.GetQueryString <int>("OldCount");
decimal price = RequestHelper.GetQueryString <decimal>("Price");
int[] ids = Array.ConvertAll <string, int>(strCartId.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries), k => Convert.ToInt32(k));
CartBLL.Update(ids, buyCount, base.UserId);
var totalCount = CartBLL.ReadList(base.UserId).Where(k => k.Id.ToString() == strCartId).Sum(k => k.BuyCount);
var totalPrice = totalCount * price;
ResponseHelper.Write(strCartId + "|" + totalCount + "|" + totalPrice);
ResponseHelper.End();
}
