public function executeGetLinkedListItems() { $this->setLayout(false); if (is_numeric($id = $this->getRequestParameter('id'))) { $list = Lists::getChildListForItem($id); } if ($list) { $items = Lists::getListitemsByListId($list->getListId()); } foreach ($items as $item) { $options .= "<option value='" . $item->getId() . "'>" . $item->getLabel() . "</option>"; } return $this->renderText($options); }