Django. GEnericRelation. Removing objects of Generic Relation model if content_object has been removed

models.py

# Article - your model
# Action, Like - Generic Relation models
# Deleting action and likes, associated with article, if we deleting article
def deleted_gfk_Action(sender, instance, using, **kwargs):
    ctype = ContentType.objects.get_for_model(sender)
    try:
        action_objs = Action.objects.filter(target_ct=ctype, target_id=instance.id)
        like_objs = Like.objects.filter(content_type=ctype, object_id=instance.id)
    except Action.DoesNotExist:
        pass
    except Like.DoesNotExist:
        pass
    else:
        action_objs.delete()
        like_objs.delete()

pre_delete.connect(deleted_gfk_Action, sender=Article, dispatch_uid='article_delete_signal')