symfony validators not working as desired

Question

Hi,

i am a newbie to symfony. am follwoing an example from the 'symfony forms in action' where a form is created the some validation methods are introduced. my problem is that when i enter invalid data into the forms and click submit, the form clears all the fields and brings up the error message *required. what might be the problem. here is my code:

apps/frontend/modules/contact/templates/indexSucces.php

<form action="<?php echo url_for('contact/index') ?>" method="POST">
  <table>
    <?php echo $form ?>
    <tr>
      <td colspan="2">
        <input type="submit" />
      </td>
    </tr>
  </table>
</form>

lib/form/ContactForm.class.php

class ContactForm extends BaseForm
{
  protected static $subjects = array('Subject A', 'Subject B', 'Subject C');

  public function configure()
  {
    $this->setWidgets(array(
      'name'    => new sfWidgetFormInputText(),
      'email'   => new sfWidgetFormInputText(),
      'subject' => new sfWidgetFormSelect(array('choices' => self::$subjects)),
      'message' => new sfWidgetFormTextarea(),
    ));
    $this->widgetSchema->setNameFormat('contact[%s]');

    $this->setValidators(array(
      'name'    => new sfValidatorString(array('required' => false)),
      'email'   => new sfValidatorEmail(),
      'subject' => new sfValidatorChoice(array('choices' => array_keys(self::$subjects))),
      'message' => new sfValidatorString(array('min_length' => 4)),
    ));
  }
}

/frontend/modules/contact/action/action.class.php

class contactActions extends sfActions
{
  public function executeIndex($request)
  {
    $this->form = new ContactForm();

    if ($request->isMethod('post'))
    {
      $this->form->bind($request->getParameter('contact'));
      if ($this->form->isValid())
      {
        $this->redirect('contact/thankyou?'.http_build_query($this->form->getValues()));
      }
    }
  }

  public function executeThankyou()
  {
  }
}

Answer 1

When i submit the form with either the correct values or wrong values, the text boxes clear and a *required error shows up. just like it would had the fields been submitted empty. what am i missing?