editTask

/**
	 * @Route("/tasks/{id}/edit", name="task_edit")
	 * @param Task $task
	 * @param Request $request
	 * @param FormFactory $formFactory
	 * @param Session $session
	 * @param RouterInterface $router
	 * @return RedirectResponse|Response
	 */
	public function editTask(Task $task, Request $request, FormFactory $formFactory, Session $session, RouterInterface $router)
	{
		$form = $formFactory->create(TaskType::class, $task);

		$form->handleRequest($request);

		if ($form->isSubmitted() && $form->isValid()) {

			$this->entityManager->flush();

			$session->getFlashBag()->add('success', 'La tâche a bien été modifiée.');

			return new RedirectResponse($router->generate('task_list'));
		}

		return new Response($this->twig->render(
			'task/edit.html.twig',
			[
				'form' => $form->createView(),
				'task' => $task,]
		));
	}