public function updateAction($id)
    {
        $form = $this->getForm();
        // Get request
        $request = $this->get('request');
        if ('POST' == $request->getMethod()) {
            $form->submit($request);
            
            if ($form->isValid()) {
                // Save instance
                $this->getManager()->create($form->getData());
                $this->get('session')->getFlashBag()->add('success', 'Instance Redis updated successfully');

                return new RedirectResponse($this->generateUrl('ringo_php_redmon'));
            }else {
                $this->get('session')->getFlashBag()->add('error', 'Some errors found');
            }
        }
        
        return $this->render(
            $this->getTemplatePath().'edit.html.twig',
            array(
                'form' => $form->createView(),
                'errors' => $form->getErrors()
            )
        );
    }