@@ -203,15 +203,35 @@ class CartController(object):
''' Determines whether the status of the current cart is valid;
this is normally called before generating or paying an invoice '''
cart = self.cart
user = self.cart.user
errors = []
# TODO: validate vouchers
items = rego.ProductItem.objects.filter(cart=self.cart)
items = rego.ProductItem.objects.filter(cart=cart)
products = set(i.product for i in items)
available = set(ProductController.available_products(
user,
products=products,
))
if products != available:
# Then we have products that aren't available any more.
for product in products:
if product not in available:
message = "%s is no longer available to you." % product
errors.append(ValidationError(message))
product_quantities = list((i.product, i.quantity) for i in items)
self._test_limits(product_quantities)
try:
except ValidationError as ve:
errors.append(ve)
# Validate the discounts
discount_items = rego.DiscountItem.objects.filter(cart=self.cart)
discount_items = rego.DiscountItem.objects.filter(cart=cart)
seen_discounts = set()
for discount_item in discount_items:
@@ -223,12 +243,17 @@ class CartController(object):
pk=discount.pk)
cond = ConditionController.for_condition(real_discount)
if not cond.is_met(self.cart.user):
raise ValidationError("Discounts are no longer available")
if not cond.is_met(user):
errors.append(
ValidationError("Discounts are no longer available")
)
if errors:
raise ValidationError(errors)
@transaction.atomic
def recalculate_discounts(self):
''' Calculates all of the discounts available for this product.
NB should be transactional, and it's terribly inefficient.
'''
# Delete the existing entries.