Sample Code snippets for my blog post "Symfony2 Forms with Twitter Bootstrap : Rendering a help block" http://wp.me/p2nCeQ-6u

FormTestController.php

    /**
     * @Route("/test/form/help", name="test_form_help")
     */
    public function sampleFormAction()
    {
        $form = $this->createFormBuilder()
                    ->add('task', 'text')
                    ->add('dueDate', 'date')
                    ->getForm();

        return $this->render('AppBundle:Test:form_help.html.twig', ['form' => $form->createView()]);
    }