Hi, I am learning cakephp by myself. I tried to create a user controller with a changepassword function. It works, but I am not sure if this is the best way, and I could not googled up useful tutorials on this. Here is my code:

class UsersController extends AppController {

    var $name = 'Users';

    function login() {
    }

    function logout() {
        $this->redirect($this->Auth->logout());
    }

    function changepassword() {
        $session=$this->Session->read();
        $id=$session['Auth']['User']['id'];
        $user=$this->User->find('first',array('conditions' => array('id' => $id)));
        $this->set('user',$user);
        if (!empty($this->data)) {
            if ($this->Auth->password($this->data['User']['password'])==$user['User']['password']) {
                if ($this->data['User']['passwordn']==$this->data['User']['password2']) {
                // Passwords match, continue processing
                $data=$this->data;
                $this->data=$user;
                $this->data['User']['password']=$this->Auth->password($data['User']['passwordn']);
                $this->User->id=$id;
                $this->User->save($this->data);
                $this->Session->setFlash('Password changed.');
                $this->redirect(array('controller'=>'Toners','action' => 'index'));
                } else {
                    $this->Session->setFlash('New passwords differ.');
                    }
            } else {
                $this->Session->setFlash('Typed passwords did not match.');
            }
        }
    }
}

password is the old password, passwordn is the new one, password2 is the new one retyped. Is there any other, more coomon way to do it in cake?