public ActionResult AddToShoppingCartInDetail(ProductViewModel model, string quantity)
        {
            string cartId  = GetCart(services);
            var    product = productRepository.All.Where(d => d.Id == model.Id).FirstOrDefault();

            if (product != null)
            {
                if (quantity != null)
                {
                    shoppingCart.AddToCartWithQuantity(product, cartId, Convert.ToInt32(quantity));
                }
                return(RedirectToAction("ShoppingCart"));
            }
            return(View("Detail", "Home"));
        }