--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messages/management/commands/purge_messages.py	Sat May 05 17:10:48 2012 -0500
@@ -0,0 +1,18 @@
+"""
+purge_messages is a custom manage.py command for the messages application.
+It is intended to be called from a cron job to purge messages that have been
+deleted by both sender and receiver.
+"""
+
+from django.core.management.base import NoArgsCommand
+
+from messages.models import Message
+
+
+class Command(NoArgsCommand):
+    help = "Delete messages that have been sent to the trash by both sender and receiver."
+
+    def handle_noargs(self, **options):
+        Message.objects.filter(sender_delete_date__isnull=False,
+                receiver_delete_date__isnull=False).delete()
+