public static int AddBookToCart(CartModel cart, BookOrderModel book)
{
int bookcount = CartDAL.SelectBookCountInCart(cart, book);
if (bookcount > 0)
{
book.quantity += CartDAL.SelectBookQuantityInCart(cart, book);
if (book.quantity > 99)
{
book.quantity = 99;
}
return(CartDAL.UpdateBookInCart(cart, book));
}
else
{
return(CartDAL.InsertBookToCart(cart, book));
}
}