queries.py 文件源码

def validate_query(validator: QueryValidator, *pre_transforms: Callable[[MutableMapping], None]) -> Callable[[Callable[[Any, MutableMapping[str, Any], PipelineContext], Union[Any, Iterable[Any]]]], Callable[[Any, MutableMapping[str, Any], PipelineContext], Union[Any, Iterable[Any]]]]:
    def wrapper(method: Callable[[Any, MutableMapping[str, Any], PipelineContext], Union[Any, Iterable[Any]]]) -> Callable[[Any, MutableMapping[str, Any], PipelineContext], Union[Any, Iterable[Any]]]:
        @wraps(method)
        def wrapped(self: Any, query: MutableMapping[str, Any], context: PipelineContext = None):
            for transform in pre_transforms:
                transform(query)

            validator(query)
            return method(self, query, context)

        return wrapped
    return wrapper