/** @var Table\ActiveRow */
private $user;

public function actionDefault($id)
{
    $this->user = $this->db->table('user')->get($id);

    if (!$this['form']->isSubmitted()) { // nevolat databázi zbytečně
        $this['form']->setDefaults(array(
            'user' => array(
                'home' => $this->user->home->toArray(),
                'correspondence' => $this->user->correspondence->toArray(),
                'billing' => $this->user->billing->toArray(),
            ) + $this->user->toArray()
        ));
    }
}


protected function createComponentForm()
{
    $form = new UI\Form;

    $form['user'] = new UserContainer;
    $form['user']['home'] = new AddressContainer;
    $form['user']['correspondence'] = new AddressContainer;
    $form['user']['billing'] = new AddressContainer;

    $form->addSubmit();
    $form->onSuccess[] = $this->formSubmitted;

    return $form;
}


public function formSubmitted(UI\Form $form)
{
    // validace

    // user
    $user = $form->values['user'];
    unset($user['billing'], $user['home'], $user['correspondence']);
    $this->user->update($user);

    // address
    $this->user->home->update($form->values['user']['home']);
    $this->user->billing->update($form->values['user']['billing']);
    $this->user->correspondence->update($form->values['user']['correspondence']);

    $this->redirect(...
}