public function addAlerta(Request $request)
{

 $contractacioid=$request->query->get('id');
 $int = (int)$contractacioid;

 //var_dump($int);


    $alerta = new Alertes();
    $form = $this->createForm(AlertesType::class, $alerta);
    $form->handleRequest($request);



    if ($form->isSubmitted()){

        $em = $this->getDoctrine()->getManager();
        $alerta->setContractacio($int);
        $em->persist($alerta);
        $em->flush();

        return $this->redirectToRoute('view_alertes');
    }



    return $this->render('alertes/addAlerta.html.twig', [
        'form' => $form -> createView()
    ]);
}