/**
* Get language code.
*
* If param $case is not set the result will be in LOWER case (e. g. "de") by default.
*
* @param string $case [optional] Convert value to case (Text::LOWER, Text::UPPER or Text::NONE)
*
* @return string
*/
public function getLanguage($case = Text::NONE)
{
return Text::toCase(\Locale::getPrimaryLanguage($this->locale), $case);
}
