symfony captcha error redirect - symfony1

Question

I'm building a simple form mailer in symfony using sfExtraForm plugin captcha. Everything works except sfValidator is not redirecting the user and showing an error when any field is invalid. The only thing I can think of is I did not generate the module. I built it from scratch.
I have to do the redirect manually. Is this because this is a sfForm and not an sfDoctrine Form? It is if the line if ($form->isValid()) returns false but without the associated redirect and error codes. Here is the program. Thanks:
Form:
<?php
class AdsForm extends sfForm
{
public function configure()
{
$this->setWidgets(array(
'name' => new sfWidgetFormInputText(),
'email' => new sfWidgetFormInputText(),
'phone' => new sfWidgetFormInputText(),
'fax' => new sfWidgetFormInputText(),
'attention' => new sfWidgetFormInputText(),
'message' => new sfWidgetFormInputText(),
'captcha' => new sfWidgetFormReCaptcha( array('public_key'=>self::PUBLIC_KEY)),
));
$this->widgetSchema->setNameFormat('ads[%s]');
$this->setValidators(array(
'name' => new sfValidatorString(array('max_length' => 50)),
'email' => new sfValidatorString(array('max_length' => 50)),
'phone' => new sfValidatorString(array('max_length' => 50)),
'fax' => new sfValidatorString(array('max_length' => 50)),
'attention' => new sfValidatorString(array('max_length' => 50)),
'message' => new sfValidatorString(array('max_length' => 255)),
'captcha' => new sfValidatorReCaptcha(array('private_key' => self::PRIVATE_KEY))
));
$this->widgetSchema->setLabels(array(
'name' => 'Your Name:*',
'email' => 'Your Email:*',
'phone' => 'Your Phone:*',
'fax' => 'Your Fax',
'attention' => 'Attention:*',
'message' => 'Mail Message:*',
'captcha' => 'Image Verification:*',
));
}
}
Action:
class adsActions extends sfActions
{
public function executeIndex(sfWebRequest $request)
{
$this->form=new adsForm();
}
public function executeSend(sfWebRequest $request){
$this->forward404Unless($request->isMethod(sfRequest::POST));
$form=new adsForm();
$captcha = array('recaptcha_challenge_field' => $request->getParameter('recaptcha_challenge_field'),'recaptcha_response_field' => $request->getParameter('recaptcha_response_field'),);
$form->bind(array_merge($request->getParameter('ads'), array('captcha' => $captcha)));
if ($form->isValid())
{
print_r($_REQUEST);
$ads=$this->getRequestParameter('ads');
print_r($ads);
$headers = 'From: '."\r\n" .
'Reply-To: no-reply#yellowexplorer.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
//mail(' ******#yahoo.com','Yellow Explorer','An account has been created for you at yellowexplorer.com with a username of '.$this->username.'. Please click here to finish creating your account.',$headers);
}
else{
$this->redirect('/ads');
}
}
}

Answer 1

You're not seeing any errors because you're redirecting! To render form fields with their errors, you need to be rendering the actual form instance that you called bind on. Try changing $this->redirect('/ads') to $this->setTemplate('index').
Other potential changes (outside the scope of the question):
You can enforce the request method requirements of the send action at the routing level. Make the send route an sfRequestRoute and add the requirement { sf_method: post }.
Symfony has a built in mailer, sfMailer. Any reason you've decided not to use it?