modelrestapidatastore.py 文件源码

def fetch_by_user_id_app_id_data_type_data_id( cls, user_id, app_id, data_type, data_id ):
        return cls.query( ndb.AND( cls.user_id == user_id,
                                                         cls.app_id == app_id,
                                                         cls.data_type == data_type,
                                                         cls.data_id == data_id )).fetch( keys_only = True )