public ActionResult Review(CheckoutViewModel model)
{
// In this step the user will be able to review their order, and finally go ahead
// and finalize. We may want to have a null payment provider for free stuff?
var user = _workContextAccessor.GetContext().CurrentUser;
if (!_checkoutHelperService.UserMayCheckout(user, out ActionResult redirect))
{
if (redirect != null)
{
return(redirect);
}
return(Redirect(RedirectUrl));
}
// Try to fetch the model from TempData to handle the case where we have been
// redirected here.
if (TempData.ContainsKey("CheckoutViewModel"))
{
model = (CheckoutViewModel)TempData["CheckoutViewModel"];
}
// decode stuff that may be encoded
ReinflateViewModelAddresses(model);
model.ShippingRequired = IsShippingRequired();
if (model.ShippingRequired && model.SelectedShippingOption == null)
{
if (string.IsNullOrWhiteSpace(model.ShippingOption))
{
// Here we need a selected shipping method, but we don't have it somehow
// so we redirect back to shipping selection
// Put the model in TempData so it can be reused in the next action.
// This is an attempt to skip shipping, so try to shortcircuit.
model.UseDefaultShipping = true;
TempData["CheckoutViewModel"] = model;
return(RedirectToAction("Shipping"));
}
var selectedOption = ShippingService.RebuildShippingOption(model.ShippingOption);
_shoppingCart.ShippingOption = selectedOption;
model.SelectedShippingOption = selectedOption;
}
// We will need to display:
// 1. The summary of all the user's choices up until this point.
// (that's already in the model)
// 2. The list of buttons for the available payment options.
model.PosServices = _posServices;
// encode addresses so we can hide them in the form
model.EncodeAddresses();
// make sure services are injected so they may be used
InjectServices(model);
return(View(model));
}
public ActionResult Shipping(CheckoutViewModel model)
{
// In this step the user will select the shipping method from a list
var user = _workContextAccessor.GetContext().CurrentUser;
if (!_checkoutHelperService.UserMayCheckout(user, out ActionResult redirect))
{
if (redirect != null)
{
return(redirect);
}
return(Redirect(RedirectUrl));
}
// Try to fetch the model from TempData to handle the case where we have been
// redirected here.
if (TempData.ContainsKey("CheckoutViewModel"))
{
model = (CheckoutViewModel)TempData["CheckoutViewModel"];
}
// Check if the mail returned an error: "A shipment has not been selected"
if (TempData.ContainsKey("ShippingError"))
{
ModelState.AddModelError("_FORM", TempData["ShippingError"].ToString());
}
// deserialize addresses
ReinflateViewModelAddresses(model);
model.ShippingRequired = IsShippingRequired();
if (model.ShippingAddressVM != null)
{
var productQuantities = _shoppingCart
.GetProducts()
.Where(p => p.Quantity > 0)
.ToList();
// Hack: based on the address coming in model.ShippingAddressVM, we can
// compute the actual destinations to be used at this stage
var country = _addressConfigurationService
?.GetCountry(model.ShippingAddressVM.CountryId);
var countryName = country
?.Record?.TerritoryInternalRecord.Name;
// we should make sure that the country name is filled in for the shipping
// address view model, so we can display it.
if (string.IsNullOrWhiteSpace(model.ShippingAddressVM.Country))
{
model.ShippingAddressVM.Country = _contentManager.GetItemMetadata(country).DisplayText;
}
// get all possible providers for shipping methods
var shippingMethods = _shippingMethodProviders
.SelectMany(p => p.GetShippingMethods())
.ToList();
// Test those providers with nwazet's default interface.
var allShippingOptions = ShippingService
.GetShippingOptions(
shippingMethods,
productQuantities,
countryName,
model.ShippingAddressVM.PostalCode,
_workContextAccessor).ToList();
// Those tests done like that cannot be very reliable with respect to
// territories' configuration, unless we configure a hierarchy of postal
// codes. Rather than do that, we are going to do an hack on the PostalCode
// that will let a shipping criterion parse out the territory Ids.
allShippingOptions
.AddRange(ShippingService
.GetShippingOptions(
shippingMethods,
productQuantities,
countryName,
$"{model.ShippingAddressVM.PostalCode};" +
$"{model.ShippingAddressVM.CountryId};" +
$"{model.ShippingAddressVM.ProvinceId};" +
$"{model.ShippingAddressVM.CityId}",
_workContextAccessor));
// remove duplicate shipping options
model.AvailableShippingOptions = allShippingOptions.Distinct(new ShippingOption.ShippingOptionComparer()).ToList();
// See whether we are trying to short circuit the checkout steps
if (model.UseDefaultShipping)
{
// if there is no option selected, and there is only one possible option, we can skip
// the selection. If the user is trying to reset their selection, there is a selected
// option so it should not trigger this condition
if (string.IsNullOrWhiteSpace(model.ShippingOption) && model.AvailableShippingOptions.Count == 1)
{
model.ShippingOption = model.AvailableShippingOptions.First().FormValue;
return(ShippingPOST(model));
}
}
// to correctly display prices, the view will need the currency provider
model.CurrencyProvider = _currencyProvider;
// encode addresses so we can hide them in the form
model.EncodeAddresses();
// make sure services are injected so they may be used
InjectServices(model);
return(View(model));
}
// to get here something must have gone very wrong. Perhaps the user
// is trying to select a shipping method where no shipping is required.
// More likely, a refresh of the shipping page messed things up for us.
// Either way, go through the index in an attempt to properly repopulate
// the addresses
model.UseDefaultAddress = true;
// Put the model in TempData so it can be reused in the next action.
TempData["CheckoutViewModel"] = model;
return(RedirectToAction("Index"));
}
