tos/Controller/TosController.php

<?php
namespace vierbergenlars\AuthserverTosBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use FOS\RestBundle\Controller\Annotations\View;
use vierbergenlars\AuthserverTosBundle\Entity\UserTos;
use vierbergenlars\AuthserverTosBundle\Form\AcceptTosType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Braincrafted\Bundle\BootstrapBundle\Form\Type\FormActionsType;

class TosController extends Controller
{

    /**
     * @View()
     */
    public function acceptAction(Request $request)
    {
        $user = $this->getUser();
        $em = $this->getDoctrine()->getManagerForClass(UserTos::class);

        $userTos = $em->find(UserTos::class, $user);
        if (!$userTos) {
            $userTos = new UserTos($user);
            $em->persist($userTos);
        }

        $tosUrl = $this->container->getParameter('vierbergenlars_tos.tos_url');

        $formBuilder = $this->createFormBuilder();
        $formBuilder->add('vl_tos', AcceptTosType::class, [
            'url' => $tosUrl
        ]);

        $formBuilder->add('submit', SubmitType::class, [
            'label' => 'Submit'
        ]);

        $form = $formBuilder->getForm();

        $form->handleRequest($request);

        if ($form->isValid()) {
            $userTos->setAcceptedVersion($this->container->getParameter('vierbergenlars_tos.tos_version'));
            $em->flush();
            return $this->redirectToRoute('user_profile');
        }

        return [
            'form' => $form,
            'tos_url' => $tosUrl
        ];
    }
}