def _location_purge_all(delete=False, verbosity=0):
    """Purge all data locations."""
    if DataLocation.objects.exists():
        for location in DataLocation.objects.filter(Q(purged=False) | Q(data=None)):
            location_purge(location.id, delete, verbosity)
    else:
        logger.info("No data locations")
Purge all data locations.