permissions.py 文件源码

def get_rule(self, request, model_cls, method_map):
        template = getattr(method_map, request.method)

        if not template:
            raise exceptions.MethodNotAllowed(request.method)

        return template.format(
            app_label=model_cls._meta.app_label,
            model_name=model_cls._meta.model_name
        )