Pass custom parameters to custom ValidationConstraint in Symfony2

Question

I\'m creating a form in Symfony2. The form only contains one book field which allows the user to choose between a list of Books entities. I need to c

Answer 1

Well, I'm not that familier with the Form/Validation component, but you can use a Hidden field with the name/id of the author and check if it's the same:

class MyFormType extends AbstractType
{
    protected $author;

    public function __construct(Author $author) {
        $this->author = $author;
    }

    public function buildForm(FormBuilderInterface $builder, array $options) {
        $builder
            ->add('book', 'entity', array('class' => 'AcmeDemoBundle:Book', 'field' => 'title');
            ->add('author_name', 'hidden', array(
                'data' => $this->author->getId(),
            ))
        ;
    }

    // ...
}