在symfony2上更改表单（如草稿/完成）

Question

I want to make forms which has three scenes

1.input view (which has 'confirm' button) 2.draft check view (which has 'send' button) 3.send view

in method 1 you can input the data then click 'confirm' button

the system write the data in DB as draft.

in method 2 you see the data and confirm then push 'send' button

the system write the flg 'confirmed'

these are my code.

it works well method 1 but if I push 'send' button in method2. it doesn't go.

if ($form->isValid()) {

My idea is something wrong??

public function writeEvalStudentAction(Request $request,$keyStr){

    ...

    $form = $this->createFormBuilder($evalStudent)
    ->add('commentToStudent')
    ->add('confirm','submit')->getForm();

    $form->handleRequest($request); 

    if ($form->isValid()) {
        if ($form->has('send')){
            if ($form->get('send')->isClicked()){

        //set confirm flg then shows thanks screen.

            $evalStudent->setConfirmed(true);
            $em->persist($evalStudent);
            $em->flush();

            return $this->render('AcmeMemberBundle:Default:confirmedEvalStudent.html.twig');
            }
         }
        if ($form->has('confirm')){
            if ($form->get('confirm')->isClicked()){

        // write in the db as draft.
            $evalStudent->setCommentToStudent($form->get('commentToStudent')->getData());

            $em->persist($evalStudent);
            $em->flush();

            $form = $this->createFormBuilder($evalStudent)->add('send','submit')->getForm();
            return $this->render('AcmeMemberBundle:Default:checkEvalStudent.html.twig',
                array('form' => $form->createView()));
        }
    }
    return $this->render('AcmeMemberBundle:Default:writeEvalStudent.html.twig',
            array('form' => $form->createView()));
}

Answer 1

Split it up in 4 controller actions with 4 separate routes. Whereas route2 and route3 require the id of your draft object in the routing parameters.

Make the form1 from step 1 point to step2. In step2 validate the form and if it is ok insert to db and get your id, then show form2 which points to step 3, if not show form1 with form errors.

Same for step2->step3 and step3->step4.

In step 4 you convert your draft to a final object and persist it and remove the draft.