public function configure()
  {
    $this->setWidgets(array(
      'name'     => new sfWidgetFormInput(),
      'email'    => new sfWidgetFormInput(),
      'subject'  => new sfWidgetFormInput(),
      'message'  => new sfWidgetFormTextarea(),
      //'captcha'  => new sfWidgetFormAltCaptcha(),
      'captcha' => new sfWidgetFormReCaptcha (array(
                            'public_key'  => wtUtil::getConfig ('recaptcha_public_key'),
                    )),
    ));

    $this->widgetSchema->setLabels(array(
      'name'     => 'Su nombre',
      'email'    => 'Su e-mail',
      'subject'  => 'Asunto del mensaje',
      'message'  => 'Mensaje',
      'captcha'  => 'Código de verificación',
    ));

    $required_message = array ('required'   => 'Este campo es obligatorio. Rellénelo, por favor.');
    $length_message   = array ('min_length' => 'Lo siento, debe introducir, al menos, %min_length% caracteres');
    $invalid_email    = array ('invalid'    => 'Debe introducir una dirección de correo electrónico válida.');
    $invalid_code     = array ('captcha'    => 'Código de verificación incorrecto');

    $this->setValidators(array(
      'name'     => new sfValidatorString(array('required'   => true,
                                                'min_length' => 5,
                                                'trim'       => true), array_merge($required_message, $length_message)),
      'email'    => new sfValidatorEmail (array('trim'       => true), array_merge($required_message, $invalid_email)),
      'subject'  => new sfValidatorString(array('required'   => false,
                                                'trim'       => true), array_merge($required_message, $length_message)),
      'message'  => new sfValidatorString(array('min_length' => 10),   array_merge($required_message, $length_message)),
      'captcha'  => new sfValidatorReCaptcha(array ('private_key' => wtUtil::getConfig ('recaptcha_private_key')),
                                                    array_merge($required_message, $invalid_code)),
    ));


    $this->widgetSchema->setNameFormat('mailbox[%s]');

    parent::configure();
    //unset ($this['response']);
  }

}
  public function executeMailbox (sfWebRequest $request)
  {
    $this->form        = new MailBoxForm();
    $this->form_action = $this->getModuleName() . "/" . $this->getActionName();

    if ($request->isMethod(sfRequest::POST))
    {
      $requestData = $request->getParameter ($this->form->getName());
      $this->form->bind($requestData);
      if ($this->form->isValid())
      {
        try
        {
          $message = $this->getMailer ()->compose(
              array ($this->form->getValue ('email')    => $this->form->getValue('name') ), // from
              array (sfConfig::get('app_default_email') => wtUtil::getConfig ('default_email_as')),
              $this->form->getValue('subject'), //subject
              $this->form->getValue ('message') //body
            );

            $mails = $this->getMailer()->send($message);

            if ($mails)
              $this->getUser()->setFlash ('_notice', 'Mensaje enviado correctamente.');
            else
              $this->getUser()->setFlash ('_notice', 'No se ha enviado el mensaje.');
        }
        catch (Exception $e)
        {
          $this->getUser()->setFlash ('_notice', 'Error al enviar el mensaje');
        }
      }

    }
  }