public async Task <ActionResult> Add(FormCollection collection)
{
//get book id & quantity from the form data
string id = collection["Id"];
int quantity = Convert.ToInt32(collection["quantity"]);
if (string.IsNullOrEmpty(id) || quantity <= 0)
{
return(RedirectToAction("Details", "Book", new { Id = id, Message = "failed, invalid id or quantity" }));
}
int itemIndex = BookIndexInCart(id);
if (itemIndex >= 0)
{
UpdateItemQuantity(itemIndex, quantity);
}
else
{
cart = GetCart();
BookDTO book = await bookstoreService.GetBookDetailsAsync(id) as BookDTO;
cart.CartItems.Add(new CartItem {
Id = cart.CartItems.Count + 1, Book = book, Quantity = quantity
});
Session["Cart"] = cart;
}
//ViewBag.Message = "Added to cart";
return(RedirectToAction("Details", "Book", new { Id = id, Message = "Book Added To Cart" }));
}
// GET: Book/Details/5
public async Task <ActionResult> Details(string id)
{
if (string.IsNullOrEmpty(id))
{
return(new HttpNotFoundResult());
}
BookDTO bookDTO = await bookstoreService.GetBookDetailsAsync(id) as BookDTO;
string message = Request.QueryString["Message"];
if (!string.IsNullOrEmpty(message))
{
ViewBag.Message = message;
}
return(View(bookDTO));
}