static function setSorting($items) { if (!CollectionSession::hasSession()) { return; } $collection = CollectionSession::getCollection(); $old_items = $collection['items']; $new_items = array(); foreach ($items as $new_index => $old_index) { $new_items[$new_index] = $old_items[$old_index]; } $collection['items'] = $new_items; CollectionSession::setCollection($collection); }