Symfony 3 ChoiceType - 忽略属性empty_data

Question

I have a problem with my search form. It is possible that my select contains nothing. This is why I would like to display a default message when it is empty.

However when I set my 'empty_data' attribute, nothing happens, always my empty select. My FormType :

/**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('organisation',ChoiceType::class,array(
            'choices' => $options['distributeurs'],
            'choice_label' => function ($value, $key, $index) {
                    return $value->getOrganisation();
                },
            'choice_value' => 'id',
            'empty_data' => 'No distributor found'
        ));
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'distributeurs' => 'ProjectBundle\Entity\Organisation\Organisation',
        ));
    }

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

And at the level of the controller :

 $distributeurs = $em->getRepository('ProjectBundle:Organisation\Organisation')->createQueryBuilder('a')
            ->where('a.id IN (:distributeurs)')->setParameter('distributeurs',$organisationDistriId)->getQuery()->execute();
        $form = $this->createForm('ProjectBundle\Form\Organisation\OrganisationDistributeurType', null, array(
            'distributeurs' => $distributeurs,
            'action' => $this->generateUrl('admin_organisations_index'),
            'method' => 'GET',
        ));

The form and information work correctly, there is just the 'empty_data' attribute that is not displayed.

The 'placeholder' attribute works but that's not what I want.

Do you have an idea ?

Thanks !

Answer 1

Try to post your code next time and not a picture because that is not clear.
In your Form Builder try to create the select in this way (Placeholder is implemented from version 2.6):

$builder->add('organisation', ChoiceType::class, array(
'placeholder' => 'Choose an option',
));