protected function getSimple($fieldName, $objectName = "object", $default = null)
    {
        if (isset($this->{$objectName}->{$fieldName})) {
            $this->out[$fieldName] = trim($this->{$objectName}->{$fieldName});
        } else {
            $this->out[$fieldName] = $default;
        }

        return $this;
    }