public function transformContent()
{
$form = $this->getForm('login');
if ($form->isSent() && $form->isValid()) {
$fieldUser = $form->getFormElementByName('username');
$fieldPass = $form->getFormElementByName('password');
$user = new User();
$user->setUsername($fieldUser->getAttribute('value'));
$user->setPassword($fieldPass->getAttribute('value'));
if (!$this->getGuestbookService()->validateCredentials($user)) {
$error = $this->getTemplate('error');
$form->setPlaceHolder('error', $error->transformTemplate());
}
}
$form->transformOnPlace();
}
