symfony3 form, can't get options in buildForm method - php

Question

I don't really know which title to give this thread but, i'm working on a Symfony project in v3.1.6 and using the select2 plugin in field of my form with ajax.
I want to use the event (submit and pre_set_data) of the form component for creation and editing to change the field dynamically like this part of the symfony doc. Everything work fine until when i submit the form and give an error Notice: Undefined variable: options
My form type code here
namespace Xxx\ArticleBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Xxx\ArtistBundle\Repository\ArtistRepository;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Ivory\CKEditorBundle\Form\Type\CKEditorType;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Doctrine\ORM\EntityManager;
class ArticleType extends AbstractType
{
/**
* {#inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
//$em = $options['em']; //this give me same error
$builder
->add('artist', EntityType::class, array(
'class' => 'XxxArtistBundle:Artist',
'choice_label' => 'artist_name',
'multiple' => false,
'expanded' => false))
->add('title', TextType::class)
->add('categories', EntityType::class, array(
'class' => 'XxxArticleBundle:Category',
'choice_label' => 'name',
'multiple' => true,
'expanded' => true))
->add('image', ChoiceType::class, array(
'expanded' => false,
'multiple' => false))
->add('intro', CKEditorType::class)
->add('content', CKEditorType::class);
$formModifier = function (FormInterface $form, $image) {
$listImages = $options['em']->getRepository('XxxAppBundle:Image')->find($image)); //this line give me the error
if (!$listImages) {
return; //i will add a FormError in the field
}
$listImages = array();
die(var_dump($listImages));
$form->add('image', EntityType::class, array(
'class' => 'XxxAppBundle:Image',
'choices' => $listImages,
));
};
$builder->get('image')->addEventListener(
FormEvents::POST_SUBMIT,
function (FormEvent $event) use ($formModifier) {
$image = $event->getForm()->getData();
//die(var_dump($image)); //select2 field, returned null (but it's not the question
//die(var_dump($options)); returned error 500 Notice: Undefined variable: options
$formModifier($event->getForm()->getParent(), $image);
}
);
}
/**
* {#inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Xxx\ArticleBundle\Entity\Article',
));
$resolver->setRequired('em');
}
/**
* {#inheritdoc}
*/
public function getBlockPrefix()
{
return 'xxx_articlebundle_article';
}
}
And i also want to say the goal is to have a UI similar w/ Wordpress when create a post from the dashboard, for set an image in an article and when image is selected throw it in a tag to the user and without entityType because it will have thousand so i choose an choiceType to use with the select2 plugin but if someone got a better solution i'm on it.
Thx in advance for the help

Answer 1

When you're using a variable from a parent scope inside a closure, you should pass it to 'use' language construct.
$formModifier = function (FormInterface $form, $image) use ($options) {
$listImages = $options['em']->getRepository('XxxAppBundle:Image')->find($image)); //this line give me the error
if (!$listImages) {
return; //i will add a FormError in the field
}
$listImages = array();
die(var_dump($listImages));
$form->add('image', EntityType::class, array(
'class' => 'XxxAppBundle:Image',
'choices' => $listImages,
));
};