Add a kind of trashbin for registrations and participants

dav_events/utils.py

@@ -1,7 +1,7 @@
 import logging
 from django.utils import timezone
 
-from .models import Participant
+from .models import Participant, TrashedParticipant
 
 logger = logging.getLogger(__name__)
 
@@ -11,3 +11,6 @@ def purge_participants():
     for p in Participant.objects.filter(purge_at__lte=now):
         logger.info('Purge participant \'%s\'', p)
         p.delete()
+    for p in TrashedParticipant.objects.filter(purge_at__lte=now):
+        logger.info('Purge participant from trash \'%s\'', p)
+        p.delete()