Make VM order-able again

uncloud_pay/models.py

@@ -636,6 +636,20 @@ class Order(models.Model):
     def bills(self):
         return Bill.objects.filter(order=self)
 
+    @staticmethod
+    def from_product(product, **kwargs):
+        # FIXME: this is only a workaround.
+        billing_address = BillingAddress.get_preferred_address_for(product.owner)
+        if billing_address == None:
+            raise Exception("Owner does not have a billing address!")
+
+        return Order(description=product.description,
+                one_time_price=product.one_time_price,
+                recurring_price=product.recurring_price,
+                billing_address=billing_address,
+                owner=product.owner,
+                **kwargs)
+
     def __str__(self):
         return "Order {} created at {}, {}->{}, recurring period {}. One time price {}, recurring price {}".format(
             self.uuid, self.creation_date,