manager.py 文件源码

def register(self, name, description='', app=None, min_level=1, namespace=None):
        """
        Register a new permission.

        :param name: Name of permission
        :param description: Description in english.
        :param app: App instance to retrieve the label.
        :param min_level: Minimum level required.
        :param namespace: Namespace, only for core usage!
        :return: Permission instance.
        """
        if not namespace and app:
            namespace = app.label
        if not namespace:
            raise Exception('Namespace is required. You should give your app instance with app=app instead!')

        try:
            perm = await self.get_perm(namespace=namespace, name=name)

            # TODO: Implement overrides on min_level here.
            if perm.min_level != min_level:
                perm.min_level = min_level
                await perm.save()

        except DoesNotExist:
            perm = Permission(namespace=namespace, name=name, description=description, min_level=min_level)
            await perm.save()
        return perm