symfony - 根据其角色隐藏字段 Symfony 3

Question

首先对不起我的英语，因为不是很好！

所以我想根据它的角色隐藏一个字段，因为如果我用 Twig 制作该字段以显示在底部表单上

我的理解代码，这是我的 LinkType ：

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder

    ->add('title')
    ->add('link')
    ->add('description')

    // this field to hidden according the role
    ->add('published', CheckboxType::class);
}

/**
 * {@inheritdoc}
 */
public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'AppBundle\Entity\Link'
    ));
}

/**
 * {@inheritdoc}
 */
public function getBlockPrefix()
{
    return 'appbundle_link';
}

控制器的一部分：

public function newAction(Request $request)
{
    $em = $this->getDoctrine()->getManager();
    $categories = $em->getRepository('AppBundle:Category')->findAll();
    $subCategories = $em->getRepository('AppBundle:SubCategory')->findAll();
    $gestionCategorie = $this->container->get('app.categorie');
    $link = new Link();

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

    $category = $repository->findCategory();
    $subCategory = $repository->findSubCategory();

    $form = $this
        ->get('form.factory')
        ->create('AppBundle\Form\LinkType', $link)

        ->add('categories', ChoiceType::class, array(
            //  on inverse les clés et valeurs
            'choices'   => array_flip($category),
            'label'     => "Catégorie",
            'attr'  => ['class' => 'form-control'],
        ))
        ->add('sousCategories', ChoiceType::class, array(
            //  on inverse les clés et valeurs
            'choices'   => array_flip($subCategory),
            'label'     => "Sous-catégorie",
            'attr'  => ['class' => 'form-control'],
        ));

    $form->handleRequest($request);

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

如果您还有其他问题，请不要犹豫

Answer 1

如果您想在控制器中执行此操作，请首先删除表单类中的字段，然后添加：

$user = $this->getUser();
if (in_array('MY_ROLE_NAME', $user->getRoles())) {
    $builder->add('published', CheckboxType::class);
}

一种更好更简洁的方法是使用表单即服务并将令牌存储服务注入其中：

// services.yml
AppBundle\Form\:
    resource: '../../src/AppBundle/Form'
    public: true
    autowire: true

// Form type class
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;

//...

private $tokenStorage;

public function __construct(TokenStorageInterface $tokenStorage)
{
    $this->tokenStorage = $tokenStorage;
}

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $user = $this->tokenStorage->getToken()->getUser();
    $builder

    ->add('title')
    ->add('link')
    ->add('description');

    if (in_array('MY_ROLE_NAME', $user->getRoles())) {
        $builder->add('published', CheckboxType::class);
    }
}