Contact.php

<?php
# /app/Model/Contact.php
class Contact extends AppModel {
    public $displayField = 'fullname';
    public $virtualFields = array(
        'fullname' => 'CONCAT(Contact.name, " ", Contact.surname)',
        'withCompany' => 'CONCAT(Contact.name, " ", Contact.surname, " - ", Contact.company',
        'bySurname' => 'CONCAT(Contact.surname, " ", Contact.name)',
        'createdIta' => 'DATE_FORMAT(Contact.created,"%d/%m/%Y")'
    );
    public function getUserInfos($id) {
        $this->virtualFields['userInfos'] = 'CONCAT(Contact.name, " ", Contact.surname, " - iscritto il ", Contact.created';
        return $this->findById($id);
    }
}