registrasion/controllers/invoice.py
def for_cart(cls, cart):
        ''' Returns an invoice object for a given cart at its current revision.
        If such an invoice does not exist, the cart is validated, and if valid,
        an invoice is generated.'''

        cart.refresh_from_db()
        try:
            invoice = commerce.Invoice.objects.exclude(
                status=commerce.Invoice.STATUS_VOID,
            ).get(
                cart=cart,
                cart_revision=cart.revision,
            )
        except ObjectDoesNotExist:
            cart_controller = CartController(cart)
            cart_controller.validate_cart()  # Raises ValidationError on fail.

            cls.update_old_invoices(cart)
            invoice = cls._generate_from_cart(cart)

        return cls(invoice)
def for_cart(cls, cart):
        ''' Returns an invoice object for a given cart at its current revision.
        If such an invoice does not exist, the cart is validated, and if valid,
        an invoice is generated.'''

        cart.refresh_from_db()
        try:
            invoice = commerce.Invoice.objects.exclude(
                status=commerce.Invoice.STATUS_VOID,
            ).get(
                cart=cart,
                cart_revision=cart.revision,
            )
        except ObjectDoesNotExist:
            cart_controller = CartController(cart)
            cart_controller.validate_cart()  # Raises ValidationError on fail.

            cls.update_old_invoices(cart)
            invoice = cls._generate_from_cart(cart)

        return cls(invoice)
def for_cart ( cls , cart ) : cart . refresh_from_db ( ) try : invoice = commerce . Invoice . objects . exclude ( status = commerce . Invoice . STATUS_VOID , ) . get ( cart = cart , cart_revision = cart . revision , ) except ObjectDoesNotExist : cart_controller = CartController ( cart ) cart_controller . validate_cart ( ) # Raises ValidationError on fail. cls . update_old_invoices ( cart ) invoice = cls . _generate_from_cart ( cart ) return cls ( invoice )
Returns an invoice object for a given cart at its current revision.
        If such an invoice does not exist, the cart is validated, and if valid,
        an invoice is generated.
Returns an invoice object for a given cart at its current revision . If such an invoice does not exist the cart is validated and if valid an invoice is generated .