private void addToCart(int pId)
{
// check if product is valid
ProductTable product = Database.Products.FirstOrDefault(p => p.Id == pId);
if (product != null && product.UnitsInStock > 0)
{
// check if product already existed
ShoppingCartTable cart = Database.ShoppingCartDatas.FirstOrDefault(c => c.PID == pId);
if (cart != null)
{
cart.Quantity++;
}
else
{
cart = new ShoppingCartTable
{
PName = product.ProductName,
PID = product.Id,
UnitPrice = (decimal)product.UnitPrice,
Quantity = 1
};
Database.ShoppingCartDatas.Add(cart);
}
Database.SaveChanges();
}
}
public async void DeleShopping(ShoppingCartTable _shoppingCartTable)
{
try
{
}
catch {
}
}
public JsonResult QuanityChange(int type, int pId)
{
using (var db = new _DatabseContextShop())
{
ShoppingCartTable product = db.ShoppingCartDatas.FirstOrDefault(p => p.PID == pId);
if (product == null)
{
return(Json(new { d = "0" }));
}
ProductTable actualProduct = db.Products.FirstOrDefault(p => p.Id == pId);
int? quantity;
// if type 0, decrease quantity
// if type 1, increase quanity
switch (type)
{
case 0:
product.Quantity--;
actualProduct.UnitsInStock++;
break;
case 1:
product.Quantity++;
actualProduct.UnitsInStock--;
break;
case -1:
actualProduct.UnitsInStock += product.Quantity;
product.Quantity = 0;
break;
default:
return(Json(new { d = "0" }));
}
if (product.Quantity == 0)
{
db.ShoppingCartDatas.Remove(product);
quantity = 0;
}
else
{
quantity = product.Quantity;
}
db.SaveChanges();
return(Json(new { d = quantity }));
}
}
public void UpdateShoppingQty(ShoppingCartTable _shoppingCartTable)
{
try {
ShoppingCartTable shoppingCartTable;
var Shoppingtable = _repositoryShop.GetAll()
.Where(c => c.CommodityId == _shoppingCartTable.CommodityId &&
c.FounderId == _shoppingCartTable.FounderId &&
c.Specification == _shoppingCartTable.Specification)
.ToList();
// 如果购物车中没有此id就创建
if (Shoppingtable.Count == 0)
{
_shoppingCartTable.TotalCost = _shoppingCartTable.Qty * _shoppingCartTable.UnitPrice;
_repositoryShop.Insert(_shoppingCartTable);
}
else
{
//如果数量等于0就将其删掉
if (_shoppingCartTable.Qty == 0)
{
_repositoryShop.Delete(_shoppingCartTable);
}
else
{
// 加一
shoppingCartTable = new ListResultDto <ShoppingCartTable>(ObjectMapper.Map <List <ShoppingCartTable> >(Shoppingtable)).Items[0];
shoppingCartTable.Qty = _shoppingCartTable.Qty + shoppingCartTable.Qty;
shoppingCartTable.TotalCost = shoppingCartTable.Qty * shoppingCartTable.UnitPrice;
_repositoryShop.Update(shoppingCartTable);
}
}
}
catch
{
}
}
// Displays your shopping cart
private void DisplayOrders()
{
OrderBasketPage = new ShoppingCartTable(OrderLine.all(), Workshop);
}