private function _initName(Horde_Kolab_Server_Object_Hash $user)
{
try {
$this->_data['user']['name'] = $user->getSingle('Firstnamelastname');
} catch (Horde_Kolab_Server_Exception_Novalue $e) {
$this->_data['user']['name'] = $this->_data['user']['id'];
}
}