这是处理两页中表单的正确方法吗？

我有一个index页面，其中包含一个简单的形式;如果表单验证失败，那么索引页会重新加载错误，否则与页面相关的操作会将请求转发给与页面success相关的另一个操作。 success页面使用提交的表单从数据库创建一个列表。一旦我们在success页面上，我们有另一种类似于用户可以用来修改页面上的列表的第一种形式。两种形式都有相同的字段。这是处理两页中表单的正确方法吗？

索引页行动：

class DefaultController extends Controller { 

/** 
* @Route("/", name="homepage") 
*/ 
public function indexAction(Request $request) { 

    $event = new Event(); 
    $form = $this->createForm(EventForm::class, $event); 
    $form->handleRequest($request); 

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

     // Do some minor modification to the form data 
     $event->setDate($party->getDate()->modify('+12 hours')); 
     $cityName = strtolower($event->getPlace()['city']); 

     // We know the form data is valid, forward it to the action which will use it to query DB 
     return $this->forward('AppBundle:Frontend/Default:eventsList', array('request' => $request)); 

    } 
// If validation fails, reload the index page with the errors 
return $this->render('default/frontend/index.html.twig', array('form' => $form->createView())); 
}

成功页面的动作（如该表格数据被转发）

/** 
    * @Route("/success", name="eventList") 
    */ 
public function eventsListAction(Request $request) { 
$event = new Party(); 
// Create a form in the second page and set its action to be the first page, otherwise form submition triggers the FIRST action related to page index and not the one related to page success 
$form = $this->createForm(EventForm::class, $event, array('action' => $this->generateUrl('eventList'))); 
$form->handleRequest($request); 

if($form->isSubmitted() && $form->isValid()) { 
    $event->setPlace($form["place"]->getData()); 
    $event->setTitle($form["title"]->getData()); 

    $repository = $this->getDoctrine() 
     ->getRepository('AppBundle:Event'); 

    // .... 
    // Create a list of events using the data from DB 
    // .... 

    return $this->render('default/frontend/success.html.twig', 
     array('events' => $events, 'form' => $form->createView()) 
    ); 
} 

return $this->render('default/frontend/success.html.twig', array('form' => $form->createView())); 
}

虽然以上实施的 “作品” 我有一个几个问题：