[Update] merge

apps/audits/tasks.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+#
+import datetime
+from django.utils import timezone
+from django.conf import settings
+from celery import shared_task
+
+from ops.celery.decorator import register_as_period_task
+from .models import UserLoginLog
+
+
+@register_as_period_task(interval=3600*24)
+@shared_task
+def clean_login_log_period():
+    now = timezone.now()
+    try:
+        days = int(settings.LOGIN_LOG_KEEP_DAYS)
+    except ValueError:
+        days = 90
+    expired_day = now - datetime.timedelta(days=days)
+    UserLoginLog.objects.filter(datetime__lt=expired_day).delete()