symfony - change form values in form callbackvalidator

Question

I've been struggling with this for a few days and have not being able to come up with the answer. I need to change a form value after an initial submit. The value will be retrieved from an external web service using one of the values submitted. The value used to search is a person id which is validated with a web service to make sure it is a valid id. With this info the web service returns the full name and I need to display it back in the form so that the user is sure that it is the person expected, this fullname is also saved with the other values.

I already saw this approach and I am able to change form values from the action with this: http://www.thenameiskhan.com/binding-changed-form-values-symfony

$values = $request->getParameter($form->getName());
$values['yourdate'] = NEW MODIFIED DATE VALUE;
$form->bind($values, $request->getFiles($form->getName()));

but I am trying to accomplish this from the form class in sf ValidatorCallback function which is validating the id provided and retrieving the fullname..

public function validate_requester_id($validator, $values){

  .....
  $webserviceanswer = CALLWEBSERVICE($values['person_id'])
  if ($webserviceanswer['code'] == VALID){
    $values['person_fullname'] = $webserviceanswer['fullname'];
  }
if( notvalid or first submit){
  ...// so as to display fullname to user.....
  throw new sfValidatorError($validator, 'blablabla')
  ...
  }
}

but when back in the form the value assigned to $values['person_fullname'] is not changed

Later I will also update the fullname value through ajax calling the webservice after the onchange event of the requester_id.. but want to have the fallback nonajax version working first.

thanks.

ivan

Do you have a return $values; statement at the end of your callback? — Maerlyn
– Maerlyn, Commented Mar 17, 2012 at 9:23

ivan · Accepted Answer · 2012-03-21 20:43:35Z

1

ok.. found the answer... need to use taintedValues within the call back validator.. before throwing the error..

public function validate_requester_id($validator, $values){
  ...
  $this->taintedValues['fieldname'] = NEW VALUE
  ... 
}

answered Mar 21, 2012 at 20:43

ivan

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