public ActionResult Purchase(CheckoutPage currentPage, CheckoutViewModel checkoutViewModel, IPaymentMethodViewModel <IPaymentOption> paymentViewModel)
{
// Since the payment property is marked with an exclude binding attribute in the CheckoutViewModel
// it needs to be manually re-added again.
checkoutViewModel.Payment = paymentViewModel;
if (String.IsNullOrEmpty(checkoutViewModel.BillingAddress.Email))
{
ModelState.AddModelError("BillingAddress.Email", _localizationService.GetString("/Shared/Address/Form/Empty/Email"));
}
if (checkoutViewModel.UseBillingAddressForShipment)
{
// If only the billing address is of interest we need to remove any existing error related to the
// other shipping addresses.
foreach (var state in ModelState.Where(x => x.Key.StartsWith("ShippingAddresses")).ToArray())
{
ModelState.Remove(state);
}
}
if (!ModelState.IsValid)
{
InitializeCheckoutViewModel(currentPage, checkoutViewModel);
return(View("Index", checkoutViewModel));
}
_checkoutService.ClearOrderAddresses();
// If the shipping address should be the same as the billing address, replace all existing shipping addresses to
// be the same as the billing address instead.
if (checkoutViewModel.UseBillingAddressForShipment)
{
checkoutViewModel.ShippingAddresses = new ShippingAddress[] { checkoutViewModel.BillingAddress };
}
SaveBillingAddress(checkoutViewModel);
SaveShippingAddresses(checkoutViewModel);
_cartService.RunWorkflow(OrderGroupWorkflowManager.CartPrepareWorkflowName);
_cartService.SaveCart();
try
{
_paymentService.ProcessPayment(checkoutViewModel.Payment.PaymentMethod);
}
catch (PreProcessException)
{
ModelState.AddModelError("PaymentMethod", _localizationService.GetString("/Checkout/Payment/Errors/PreProcessingFailure"));
}
if (!ModelState.IsValid)
{
InitializeCheckoutViewModel(currentPage, checkoutViewModel);
return(View("Index", checkoutViewModel));
}
return(Finish(currentPage));
}