add cleanupEvents to worker

app/worker.py

@@ -1,6 +1,7 @@
 from celery import Celery
 from celery.schedules import crontab
 from create_events import createEvents
+from cleanup_events import cleanupEvents
 import os
 from flask import Flask
 from misc import currDay, datetime, time, timedelta
@@ -32,11 +33,20 @@ def runCreateEvents():
     with app.app_context():
         createEvents(db, currDay, Period, Event)
 
+def runCleanupEvents():
+    with app.app_context():
+        cleanupEvents(db, Event)
+
 # Scheduled tasks
 celerymsg.conf.beat_schedule = {
     'hourly-createevents': {
         'task': 'worker.runCreateEvents',
         # Run hourly
         'schedule': crontab(hour="*", minute="59"),
+    },
+    'monthly-cleanupevents': {
+        'task': 'worker.runCleanupEvents',
+        # Run monthly
+        'schedule': crontab(day_of_month="29")
     }
 }