def edit_purchase(request, purchase_id, **kwargs):
try:
purchase = Purchase.objects.polymorphic().get(pk=purchase_id)
except Purchase.DoesNotExist:
raise Http404
cart = cart_from_request(request)
messages = FlashMessages()
form = EditPurchaseForm.factory(
purchase,
data=request.POST
)(request.POST)
if 'remove' in request.POST:
cart.remove(purchase)
messages.success(
request, _(
"{0} has been removed from your "
"cart."
).format(purchase)
)
else:
# We require a valid form
if form.is_valid():
try:
purchase = Purchase.make(**form.get_edit_purchase_args())
cart.update(purchase)
messages.success(request, _("Your cart has been updated."))
except PurchaseInvalid as error:
messages.error(
request, _(
"Your cart could not be "
"updated."
)
)
messages.error(request, error)
else:
messages.error(request, _("Your cart could not be updated."))
messages.error(request, get_error_message(form))
# Provide default response
yield redirect(
reverse(
request.POST.get(
'next',
request.GET.get('next', 'cart:cart')),
current_app=resolve(request.path).namespace
)
)
yield chaining.update(
purchase=purchase,
cart=cart,
messages=messages)
if (yield chaining.forward).result is None:
raise ViewNotImplemented
if cart.has_changed():
cart.calculate()
cart.save()
messages.transmit()
def add_to_cart(request, **kwargs):
cart = cart_from_request(request)
messages = FlashMessages()
form = AddToCartForm.factory(data=request.POST)(request.POST)
# Create purchase
purchase = None
if form.is_valid():
try:
purchase = Purchase.make(**form.get_purchase_args())
except PurchaseInvalid as error:
messages.error(request, _("Could not be added to your cart."))
messages.error(request, error)
else:
messages.error(request, _("Your cart could not be updated."))
messages.error(request, get_error_message(form))
# Add purchase to cart
if purchase is not None:
try:
cart.add(purchase)
messages.success(
request, _(
"{0} has been added to your "
"cart."
).format(purchase)
)
except PurchaseInvalid as error:
messages.error(
request, _(
"{0} could not be added to "
"your cart."
).format(purchase)
)
messages.error(request, error)
# Provide default response
yield redirect(
reverse(
request.POST.get(
'next',
request.GET.get('next', 'cart:cart')),
current_app=resolve(request.path).namespace
)
)
yield chaining.update(
purchase=purchase,
cart=cart,
messages=messages)
if (yield chaining.forward).result is None:
raise ViewNotImplemented
if cart.has_changed():
cart.calculate()
cart.save()
cart.track(request)
messages.transmit()
