added a task scheduler for recurring tasks

src/documents/migrations/1001_auto_20201109_1636.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.1.3 on 2020-11-09 16:36
+
+from django.db import migrations
+from django.db.migrations import RunPython
+from django_q.models import Schedule
+from django_q.tasks import schedule
+
+
+def add_schedules(apps, schema_editor):
+    schedule('documents.tasks.train_classifier', name="Train the classifier", schedule_type=Schedule.HOURLY)
+    schedule('documents.tasks.index_optimize', name="Optimize the index", schedule_type=Schedule.DAILY)
+    schedule('documents.tasks.consume_mail', name="Check E-Mail", schedule_type=Schedule.MINUTES, minutes=10)
+
+
+def remove_schedules(apps, schema_editor):
+    Schedule.objects.all().delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('documents', '1000_update_paperless_all'),
+        ('django_q', '0013_task_attempt_count'),
+    ]
+
+    operations = [
+        RunPython(add_schedules, remove_schedules)
+    ]