public function loadLabels($locale, $force = false)
    {
        if (!$this->labelsLoaded || $force) {
            if (file_exists(\Nf\Registry::get('applicationPath') . '/labels/' . $locale . '.ini')) {
                $this->labels=parse_ini_file(\Nf\Registry::get('applicationPath') . '/labels/' . $locale . '.ini', true);
                $this->labelsLoaded=true;
            } else {
                throw new \Exception('Cannot load labels for this locale (' . $locale . ')');
            }
        }
    }