Ojs\JournalBundle\Form\Type\JournalIndexType::buildForm PHP Method

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('index', 'entity', ['class' => 'Ojs\\JournalBundle\\Entity\\Index', 'attr' => ['class' => ' form-control select2-element'], 'query_builder' => function (EntityRepository $er) {
            return $er->createQueryBuilder('i')->andWhere('i.status = :status')->setParameter('status', true);
        }, 'label' => 'journalindex.list'])->add('link', 'url', array('label' => 'journalindex.link'));
    }