from __future__ import annotations from typing import TYPE_CHECKING from langflow.services.database.service import DatabaseService from langflow.services.factory import ServiceFactory if TYPE_CHECKING: from langflow.services.settings.service import SettingsService class DatabaseServiceFactory(ServiceFactory): def __init__(self) -> None: super().__init__(DatabaseService) def create(self, settings_service: SettingsService): # Here you would have logic to create and configure a DatabaseService if not settings_service.settings.database_url: msg = "No database URL provided" raise ValueError(msg) return DatabaseService(settings_service)