'Drop django-celery tables.'

def forwards(self, orm):

    tables_to_drop = ['djcelery_taskstate', 'djcelery_workerstate', 'djcelery_periodictask', 'djcelery_periodictasks', 'djcelery_crontabschedule', 'djcelery_intervalschedule', 'celery_tasksetmeta', 'celery_taskmeta']
    for table in tables_to_drop:
        if (table in orm):
            db.delete_table(table)
    ContentType.objects.filter(app_label='djcelery').delete()
