Gc\User\Visitor::getUrlId PHP Method

    public function getUrlId($requestUri, $referer)
    {
        $select = new Select();
        $select->from('log_url_info')->where->equalTo('url', $requestUri);
        if (is_null($referer)) {
            $select->where->isNull('referer');
        } else {
            $select->where->equalTo('referer', $referer);
        }
        $urlInfo = $this->fetchRow($select);
        if (!empty($urlInfo['id'])) {
            $urlId = $urlInfo['id'];
        } else {
            $insert = new Insert();
            $insert->into('log_url_info')->values(array('url' => $requestUri, 'referer' => $referer));
            $this->execute($insert);
            $urlId = $this->getLastInsertId('log_url_info');
        }
        return $urlId;
    }