public void AddItem(Snack snack, int amount)
{
var cartItem = _context.CartItems.SingleOrDefault(
s => s.Snack.Id == snack.Id && s.CartId == Id);
// Create a Cart if necessary, otherwise increase amount
if (cartItem == null)
{
cartItem = new CartItem
{
CartId = Id,
Snack = snack,
Amount = amount
};
_context.CartItems.Add(cartItem);
}
else
{
cartItem.Amount += amount;
}
_context.SaveChanges();
}
public int RemoveItem(Snack snack)
{
var cartItem = _context.CartItems.SingleOrDefault(
s => s.Snack.Id == snack.Id && s.CartId == Id);
var localAmount = 0;
if (cartItem != null)
{
if (cartItem.Amount > 1)
{
cartItem.Amount--;
localAmount = cartItem.Amount;
}
else
{
_context.CartItems.Remove(cartItem);
}
}
_context.SaveChanges();
return(localAmount);
}