symfony setData() error - php

Question

I'm trying to put a value in form created by formbuilder, i took the value from another twig file by the request, and i'm trying to use $form->setData(array('field'=>value));
Code controller:
public function ModifierGestionMatchAction(Request $request)
{
$id = $request->get('id');
$idmatch = $request->get('idm');
$em = $this->getDoctrine()->getManager();
$type = $em->getRepository("MainBundle:ReservationGestionStock")
->find($id);
$match = $em->getRepository("MainBundle:Match")
->findOneByid($idmatch);
$form = $this->createForm(ReservationGestionStockType::class, $type);
$form->setData(array('hotel'=>null));
$form->setData(array('match'=>$match));
$form->handleRequest($request);
if($form->isValid()){
$em->persist($type);
$em->flush();
return $this->redirectToRoute("ReservationGestionStockAfficher");
}
return $this->render('MainBundle:GestionStock:GestionStockModifierMatch.html.twig',
array(
"form" => $form->createView(),
"match" => $match
));
}
my form code:
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('hotel',HiddenType::class)
->add('match',HiddenType::class)
->add('nb')
->add('nbr')
->add('Valider', SubmitType::class)
->add('Reset', ResetType::class);
}
Notice: the hotel and match are 2 entitys, i'm having problem with setData() for match, i tried to setdata of idmatch but its the same problem," the form isnt valid "

Answer 1

$form->get('hotel')->setData('John');
$form->get('match')->setData($match);

Answer 2

After submission just do that,
$type = $form->getData(); $type->setHotel($hotel); $type->setMatch($match); then persist and flush $type

Answer 3

i did this and its working, but i think it's so weird ... anyway thanks everyone for replying me.
if ($form->isSubmitted()) {
$gestion= new ReservationGestionStock();
$gestion->setMatch(null);
$gestion->setNb($form->getData()->getNb('nb'));
$gestion->setNbr($form->getData()->getNbr('nbr'));
$gestion->setHotel($hotel);
$em->persist($hotel);
$em->flush();
return $this->redirectToRoute("ReservationGestionStockAfficher");
}