public ActionResult Buy(BuyViewModel vm)
{
if (vm.Amount <= 0 || vm.Amount > vm.Limit || vm == null || !this.ModelState.IsValid)
{
return View("TradeError");
}
Books targeBook = BookProviders.Instance.AllBooks.SingleOrDefault(b => b.Id == vm.BookId);
User targeUser = UserProvider.Instance.AllUser.SingleOrDefault(u => u.Id == vm.UserId);
if (targeUser == null || targeBook == null)
{
return View("TradeError");
}
Order order = new Order();
order.ID = (new Random()).Next(1, 10000);
order.BookId = vm.BookId;
order.UserId = vm.UserId;
order.Total = (double)targeBook.Price * vm.Amount;
OrderViewModel orderViewModel = new OrderViewModel();
orderViewModel.Order = order;
orderViewModel.Book = targeBook;
orderViewModel.User = targeUser;
return View("Order", orderViewModel);
}
public ActionResult Buy()
{
BuyViewModel vm = new BuyViewModel() { Limit = 99999 };
return View(vm);
}