DmitryDulepov\Realurl\Configuration\ConfigurationReader::setRootPageIdFromRootFlag PHP Method

    protected function setRootPageIdFromRootFlag()
    {
        $result = FALSE;
        /** @noinspection PhpUndefinedMethodInspection */
        $rows = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows('uid', 'pages', 'is_siteroot=1 AND deleted=0 AND hidden=0');
        if (count($rows) > 1) {
            // Cannot be done: too many of them!
            throw new \Exception('RealURL was not able to find the root page id for the domain "' . $this->utility->getCurrentHost() . '"', 1420480928);
        } elseif (count($rows) !== 0) {
            $this->configuration['pagePath']['rootpage_id'] = (int) $rows[0]['uid'];
            $result = TRUE;
        }
        return $result;
    }