Method get_related_model

tortoise/apps.py:127–146

Test, if app and model really exist. Throws a ConfigurationError with a hopefully helpful message. If successful, returns the requested model. :raises ConfigurationError: If no such app exists.

(related_app_name: str, related_model_name: str)

    def _init_relations(self) -> None:
        def get_related_model(related_app_name: str, related_model_name: str) -> type[Model]:
            """
            Test, if app and model really exist. Throws a ConfigurationError with a hopefully
            helpful message. If successful, returns the requested model.

            :raises ConfigurationError: If no such app exists.
            """
            try:
                return self.apps[related_app_name][related_model_name]
            except KeyError:
                if related_app_name not in self.apps:
                    raise ConfigurationError(
                        f"No app with name '{related_app_name}' registered."
                        f" Please check your model names in ForeignKeyFields"
                        f" and configurations."
                    )
                raise ConfigurationError(
                    f"No model with name '{related_model_name}' registered in"
                    f" app '{related_app_name}'."
                )

        def split_reference(reference: str) -> tuple[str, str]:
            """