Contao\Backend::doCreatePageList PHP Метод

    protected function doCreatePageList($intId = 0, $level = -1)
    {
        $objPages = $this->Database->prepare("SELECT id, title, type, dns FROM tl_page WHERE pid=? ORDER BY sorting")->execute($intId);
        if ($objPages->numRows < 1) {
            return '';
        }
        ++$level;
        $strOptions = '';
        while ($objPages->next()) {
            if ($objPages->type == 'root') {
                // Skip websites that run under a different domain
                if ($objPages->dns && $objPages->dns != \Environment::get('host')) {
                    continue;
                }
                $strOptions .= '<optgroup label="' . $objPages->title . '">';
                $strOptions .= $this->doCreatePageList($objPages->id, -1);
                $strOptions .= '</optgroup>';
            } else {
                $strOptions .= sprintf('<option value="{{link_url::%s}}"%s>%s%s</option>', $objPages->id, '{{link_url::' . $objPages->id . '}}' == \Input::get('value') ? ' selected="selected"' : '', str_repeat(' &nbsp; &nbsp; ', $level), \StringUtil::specialchars($objPages->title));
                $strOptions .= $this->doCreatePageList($objPages->id, $level);
            }
        }
        return $strOptions;
    }