/**
* Return first name
*
* If $force_value is true and first name value is not present, system will
* use email address part before @domain.tld
*
* @param boolean $force_value
* @return string
*/
function getFirstName($force_value = false)
{
$result = parent::getFirstName();
if (empty($result) && $force_value) {
$email = $this->getEmail();
return substr_utf($email, 0, strpos_utf($email, '@'));
}
// if
return $result;
}