Method database_backward

tortoise/migrations/operations.py:1243–1254

(
        self,
        app_label: str,
        old_state: State,
        new_state: State,
        state_editor: BaseSchemaEditor | None = None,
    )

        await self._run_sql(state_editor, self.sql)

    async def database_backward(
        self,
        app_label: str,
        old_state: State,
        new_state: State,
        state_editor: BaseSchemaEditor | None = None,
    ) -> None:
        if not state_editor:
            return
        if self.reverse_sql is None:
            raise NotImplementedError("RunSQL reverse_sql is not set")
        await self._run_sql(state_editor, self.reverse_sql)

    async def _run_sql(self, state_editor: BaseSchemaEditor, sqls) -> None:
        """Execute SQL statements using the schema editor."""