public function formatTemplateData($viewData = [])
    {
        $log = '';
        reset($viewData);
        foreach ($viewData as $viewName => $viewDataObject) {
            // show debbuging information
            $log .= "TemplateData[$viewName] : <br />\n";
            $log .= print_r($viewDataObject, 1);
        }

        return $log;
    }