Piwik\Plugins\Installation\Rule_isValidTimezone::validateOwner PHP Метод

    function validateOwner()
    {
        try {
            $timezone = $this->owner->getValue();
            if (!empty($timezone)) {
                Access::doAsSuperUser(function () use($timezone) {
                    API::getInstance()->setDefaultTimezone($timezone);
                });
            }
        } catch (\Exception $e) {
            return false;
        }
        return true;
    }