synch method

@override Future synch()

Implementation

@override
synch() async {
  await super.synch();

  await ctrl.query("""
    DELETE FROM fractal
    WHERE id IN (
      SELECT writer.id
      FROM writer
      INNER JOIN event
      ON event.id=writer.id
      WHERE event.created_at < ?
      AND event."to" = ? AND writer.attr = ?
    );
  """, [createdAt, to?.id, attr]);
}