helpful acl messages for tickets.

tickets/models.py

@@ -72,21 +72,26 @@ class Ticket(AclMixin, models.Model):
         """ Check that the user has the right to view the ticket
         or that it is the author"""
         if (not user_request.has_perm('tickets.view_ticket') and self.user != user_request):
-            return False, _("You don't have the right to view other tickets than yours.")
+            return (
+                False,
+                _("You don't have the right to view other tickets than yours."),
+                ('tickets.view_ticket',)
+            )
         else:
-            return True, None
+            return True, None, None
 
     @staticmethod
     def can_view_all(user_request, *_args, **_kwargs):
         """ Check that the user has access to the list of all tickets"""
         return(
             user_request.has_perm('tickets.view_tickets'),
-            _("You don't have the right to view the list of tickets.")
+            _("You don't have the right to view the list of tickets."),
+            ('tickets.view_tickets',)
         )
 
     def can_create(user_request,*_args, **_kwargs):
         """ Authorise all users to open tickets """
-        return True,None
+        return True, None, None
 
 @receiver(post_save, sender=Ticket)
 def ticket_post_save(**kwargs):