/*通过专辑的标识从用户的购物车中将这个专辑的数量减少 1，如果用户仅仅剩下一个，那么就删除这一行。*/
public int RemoveFromCart(int id)
{
Maticsoft.BLL.cart item = new Maticsoft.BLL.cart();
List <Maticsoft.DAL.SqlWhereClass> lssqlwhere = new List <Maticsoft.DAL.SqlWhereClass>();
Maticsoft.DAL.SqlWhereClass sqlwhere = new Maticsoft.DAL.SqlWhereClass("CartId", "CartId", Maticsoft.DAL.NetOperate.EQ, "'" + ShoppingCartid + "'");
lssqlwhere.Add(sqlwhere);
sqlwhere = new Maticsoft.DAL.SqlWhereClass("RecordId", "RecordId", Maticsoft.DAL.NetOperate.EQ, id.ToString());
var CartItem = item.GetModel(lssqlwhere);
int itemcount = 0;
if (CartItem != null)
{
if (CartItem.Count > 1)
{
CartItem.Count--;
itemcount = CartItem.Count;
}
else
{
item.Delete(id);
}
}
return(itemcount);
}
/*
* 将专辑作为参数加入到购物车中，在 Cart 表中跟踪每个专辑的数量，在这个方法中，我们将会检查是在表中增加一个新行，还是仅仅在用户已经选择的专辑上增加数量。
*/
public void AddToCart(album album)
{
Maticsoft.BLL.cart item = new Maticsoft.BLL.cart();
List <Maticsoft.DAL.SqlWhereClass> lssqlwhere = new List <Maticsoft.DAL.SqlWhereClass>();
Maticsoft.DAL.SqlWhereClass sqlwhere = new Maticsoft.DAL.SqlWhereClass("CartId", "CartId", Maticsoft.DAL.NetOperate.EQ, "'" + ShoppingCartid + "'");
lssqlwhere.Add(sqlwhere);
sqlwhere = new Maticsoft.DAL.SqlWhereClass("AlbumId", "AlbumId", Maticsoft.DAL.NetOperate.EQ, album.AlbumId.ToString());
lssqlwhere.Add(sqlwhere);
var CartItem = item.GetModel(lssqlwhere);
if (CartItem == null)
{
CartItem = new cart
{
AlbumId = album.AlbumId,
CartId = ShoppingCartid,
Count = 1,
DateCreated = DateTime.Now
};
item.Add(CartItem);
}
else
{
CartItem.Count++;
item.Update(CartItem);
}
}
public void MigrateCart(string userName)
{
Maticsoft.BLL.cart cartbll = new Maticsoft.BLL.cart();
List <Maticsoft.DAL.SqlWhereClass> lssqlwhere = new List <Maticsoft.DAL.SqlWhereClass>();
Maticsoft.DAL.SqlWhereClass sqlwhere = new Maticsoft.DAL.SqlWhereClass("CartId", "CartId", Maticsoft.DAL.NetOperate.EQ, "'" + ShoppingCartid + "'");
lssqlwhere.Add(sqlwhere);
var cartitem = cartbll.GetModel(lssqlwhere);
if (cartitem == null)
{
return;
}
cartitem.CartId = userName;
cartbll.Update(cartitem);
}
