revisions.py 文件源码

def unregister(self, model):
        """Removes a model from version control."""
        if not self.is_registered(model):
            raise RegistrationError("{model} has not been registered with django-reversion".format(
                model = model,
            ))
        del self._registered_models[model]
        post_save.disconnect(self._post_save_receiver, model)
        pre_delete.disconnect(self._pre_delete_receiver, model)