), 'promotion'));
$this->addSort(new PlViewOrder('date_mod', array(
new UFO_ProfileUpdate(true),
new UFO_Promo(UserFilter::DISPLAY, true),
), 'promotion'));
$this->addSort(new PlViewOrder('date_mod', array(
new UFO_ProfileUpdate(true),
new UFO_Promo(UserFilter::DISPLAY, true),