Method _save_or_update_state

lib/sqlalchemy/orm/session.py:3613–3621

(self, state: InstanceState[Any])

            self.add(instance, _warn=False)

    def _save_or_update_state(self, state: InstanceState[Any]) -> None:
        state._orphaned_outside_of_session = False
        self._save_or_update_impl(state)

        mapper = _state_mapper(state)
        for o, m, st_, dct_ in mapper.cascade_iterator(
            "save-update", state, halt_on=self._contains_state
        ):
            self._save_or_update_impl(st_)

    def delete(self, instance: object) -> None:
        """Mark an instance as deleted.