pandora_cms/tasks.py

# -*- coding: utf-8 -*-
from datetime import datetime, timedelta
import subprocess

from celery.task import periodic_task

@periodic_task(run_every=timedelta(hours=1), queue='encoding')
def subtitles_user(**kwargs):
    import annotation.models
    from user.models import User
    try:
        u = User.objects.get(username='subtitles')
    except User.DoesNotExist:
        print('subtitles user does not exist, unable to move subtitles')
        return
    annotation.models.Annotation.objects.filter(layer='subtitles').exclude(user=u).update(user=u)

@periodic_task(run_every=timedelta(hours=1), queue='encoding')
def update_ontology(**kwargs):
    import annotation.models
    t = datetime.now() - annotation.models.Annotation.objects.all().order_by('-created')[0].created
    if t < timedelta(hours=1):
        try:
            subprocess.call(['/srv/pandora/pandora/cms/ontology/update.sh'])
        except:
            pass

@periodic_task(run_every=timedelta(hours=12), queue='encoding')
def render_edits(**kwargs):
    path = '/home/pandora/pandora_render/render_public_edits.py'
    if os.path.exists(path):
        try:
            subprocess.call([path])
        except:
            pass