'Returns a list of objects attached to this placeholder.'

def _get_attached_objects(self):

    if DJANGO_1_8:
        return [obj for field in self._get_attached_fields() for obj in getattr(self, field.related.get_accessor_name()).all()]
    else:
        return [obj for field in self._get_attached_fields() for obj in getattr(self, field.remote_field.get_accessor_name()).all()]
