slapos_accounting: wip - Generate Invoice 15 days up front

master/bt5/slapos_accounting/SkinTemplateItem/portal_skins/slapos_accounting/Person_storeOpenSaleOrderJournal.py

@@ -96,7 +96,9 @@ if open_sale_order is not None:
     assert current_start_date == hosting_subscription.HostingSubscription_calculateSubscriptionStartDate()
 
     # First check if the hosting subscription has been correctly simulated (this script may run only once per year...)
-    stop_date = calculateOpenOrderLineStopDate(open_order_line, hosting_subscription, start_date_delta=0)
+    stop_date = calculateOpenOrderLineStopDate(open_order_line, hosting_subscription,
+                                               # Generate the invoice 15 days earlier 
+                                               start_date_delta=15)
     if current_stop_date < stop_date:
       # Bingo, new subscription to generate
       open_order_line.edit(