housekeeping: do voucher auto-assignments

src/core/management/commands/housekeeping.py

@@ -2,6 +2,7 @@ from django.core.management.base import BaseCommand
 from django.utils import timezone
 
 from ...models.messages import DirectMessage
+from ...models.voucher import Voucher
 
 
 class Command(BaseCommand):
@@ -9,3 +10,7 @@ class Command(BaseCommand):
         # clear all direct messages which are after their expiry date
         deleted_msgs_count, _ = DirectMessage.objects.filter(autodelete_after__isnull=False, autodelete_after__lte=timezone.now()).delete()
         print(f'Deleted {deleted_msgs_count} messages.')
+
+        # do auto-assignments
+        vouchers_assigned = Voucher.do_auto_assignments()
+        print(f'Auto-assigned {vouchers_assigned} vouchers.')