Adds a scheduled task to remove old notification entries from the database

InvenTree/InvenTree/apps.py

@@ -76,6 +76,12 @@ class InvenTreeConfig(AppConfig):
             minutes=30,
         )
 
+        # Delete old notification records
+        InvenTree.tasks.schedule_task(
+            'common.tasks.delete_old_notifications',
+            schedule_type=Schedule.DAILY,
+        )
+
     def update_exchange_rates(self):
         """
         Update exchange rates each time the server is started, *if*:

InvenTree/InvenTree/management/commands/rebuild_thumbnails.py

@@ -17,7 +17,7 @@ from company.models import Company
 from part.models import Part
 
 
-logger = logging.getLogger("inventree-thumbnails")
+logger = logging.getLogger('inventree')
 
 
 class Command(BaseCommand):

InvenTree/common/tasks.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+import logging
+from datetime import timedelta, datetime
+
+from django.core.exceptions import AppRegistryNotReady
+
+
+logger = logging.getLogger('inventree')
+
+
+def delete_old_notifications():
+    """
+    Remove old notifications from the database.
+
+    Anything older than ~3 months is removed
+    """
+
+    try:
+        from common.models import NotificationEntry
+    except AppRegistryNotReady:
+        logger.info("Could not perform 'delete_old_notifications' - App registry not ready")
+        return
+
+    before = datetime.now() - timedelta(days=90)
+
+    # Delete notification records before the specified date
+    NotificationEntry.objects.filter(updated__lte=before).delete()

tasks.py

@@ -286,6 +286,7 @@ def content_excludes():
         "users.owner",
         "exchange.rate",
         "exchange.exchangebackend",
+        "common.notificationentry",
     ]
 
     output = ""