clean up old tickets

django_cas/models.py

@@ -5,6 +5,9 @@ from django.conf import settings
 from django.contrib.auth.models import User
 from django.core.exceptions import ObjectDoesNotExist
 from django_cas.exceptions import CasTicketException, CasConfigException
+# Ed Crewe - add in signals to delete old tickets
+from django.db.models.signals import post_save
+from datetime import datetime
 
 class Tgt(models.Model):
     username = models.CharField(max_length = 255, unique = True)
@@ -54,3 +57,15 @@ def get_tgt_for(user):
         return Tgt.objects.get(username = user.username)
     except ObjectDoesNotExist:
         raise CasTicketException("no ticket found for user " + user.username)
+
+def delete_old_tickets(**kwargs):
+    """ Delete tickets if they are over 2 days old 
+        kwargs = ['raw', 'signal', 'instance', 'sender', 'created']
+    """
+    sender = kwargs.get('sender', None)
+    now = datetime.now()
+    expire = datetime(now.year, now.month, now.day - 3)
+    sender.objects.filter(created__lt=expire).delete()
+
+post_save.connect(delete_old_tickets, sender=pgtIOU)
+post_save.connect(delete_old_tickets, sender=Tgt)