Wire VMProduct creation to order

uncloud/uncloud_pay/models.py

@@ -60,6 +60,13 @@ class Order(models.Model):
                               choices = RecurringPeriod.choices,
                               default = RecurringPeriod.PER_MONTH)
 
+    @property
+    def products(self):
+        # Blows up due to circular dependency...
+        # vms = VMProduct.objects.filter(order=self)
+        vms = []
+        return vms
+
     # def amount(self):
     #     amount = recurring_price
     #     if recurring and first_month: