$qi->transport = $this->transport();
$qi->whereAdd('now() - claimed > '.CLAIM_TIMEOUT);
$qi->update(DB_DATAOBJECT_WHEREADD_ONLY);
$qi->transport = $this->transport();
$qi->whereAdd('now() - claimed > '.CLAIM_TIMEOUT);
$qi->update(DB_DATAOBJECT_WHEREADD_ONLY);