protected function getWidgetCollection(array $items)
    {
        if (empty($items)) {
            return '';
        }

        $item = reset($items);

        $data = array(
            'items' => $items,
            'title' => $item['collection_item']['collection_title'],
            'collection_id' => $item['collection_item']['collection_id']
        );

        return $this->render($item['collection_handler']['template']['list'], $data, true);
    }