public void AddCart(CardCreationDto card, int amount)
        {
            var shoppingCartItem = new ShoppingCartItemDto
            {
                ShoppingCartID = ShoppingCartId,
                CardCreation   = card,
                Amount         = amount
            };

            _Context.ShoppingCartItems.Add(shoppingCartItem);


            _Context.SaveChanges();
        }
        public int RemoveFromCart(CardCreationDto card)
        {
            var shoppingCartItem = _Context.ShoppingCartItems.SingleOrDefault(c => c.ShoppingCartID == ShoppingCartId && c.CardCreation == card);
            var localAmount      = 0;

            if (shoppingCartItem.Amount > 1)
            {
                shoppingCartItem.Amount--;
                localAmount = shoppingCartItem.Amount;
            }
            else
            {
                _Context.ShoppingCartItems.Remove(shoppingCartItem);
            }
            _Context.SaveChanges();

            return(localAmount);
        }