revisions.py 文件源码

def register(self, model, adapter_cls=VersionAdapter, **field_overrides):
        """Registers a model with this revision manager."""
        # Prevent multiple registration.
        if self.is_registered(model):
            raise RegistrationError("{model} has already been registered with django-reversion".format(
                model = model,
            ))
        # Prevent proxy models being registered.
        if model._meta.proxy:
            raise RegistrationError("Proxy models cannot be used with django-reversion, register the parent class instead")
        # Perform any customization.
        if field_overrides:
            adapter_cls = type(adapter_cls.__name__, (adapter_cls,), field_overrides)
        # Perform the registration.
        adapter_obj = adapter_cls(model)
        self._registered_models[model] = adapter_obj
        # Connect to the post save signal of the model.
        post_save.connect(self._post_save_receiver, model)
        pre_delete.connect(self._pre_delete_receiver, model)