private function applyFieldOfType(DataModel $model, \SimpleXMLElement &$fieldSet, $fieldName, $fieldTypeField)
{
$langDefs = $this->getFieldLabel($fieldName);
$this->addString($langDefs['label']['key'], $langDefs['label']['value']);
$this->addString($langDefs['desc']['key'], $langDefs['desc']['value']);
$field = $fieldSet->addChild('field');
$field->addAttribute('name', $fieldName);
$field->addAttribute('type', $fieldTypeField);
$field->addAttribute('label', $langDefs['label']['key']);
if ($this->addDescriptions) {
$field->addAttribute('description', $langDefs['desc']['key']);
}
}