/**
* Performs the form validation workflow.
*
* @param string $submit_button
* @param string $form_config
* @param array $default_fields
* @return null if no submit sent. True if validated correctly, false otherwise.
*/
protected function getValidatedForm($submit_button, $form_config, $default_fields = array())
{
$post = FilterPost::getInstance();
$form = new Form($post, $this->view);
if ($post->isSent($submit_button)) {
$return = $form->validateElements($form_config);
if ($return) {
$return = $form;
}
} else {
$form->addFields($default_fields);
$return = null;
}
$this->assign('form_values', $form->getFields());
$this->assign('requirements', $form->getRequirements($form_config));
$this->assign('error', $form->getErrors());
return $return;
}
