Symfony2 - How to set, and get, options when using a Form Class?

Question

I am using Form Classes to build the various form in my project.

In the Entity Type file, for the buildForm function, there is a secondary parameter of \"array $options\

Answer 1

Well acording to this Google Groups

"greg0ire" was right, in fact I have tried it and works perfect!!!. You said "I dont really want to go about "hacking" any of the core structure" but you end up using no the best approach.. in matter of fact, from my point of view, you end up doing what you didn't want to do.

So at the end you should do this:

at the formType

public function buildForm(FormBuilder $builder, array $options)
{
    $builder
        ->add('name')
        ->add('slug')
        ->add('reference')
        ->add('description')
        ->add('active_from')
        ->add('active_till')
        ->add('is_active')
        ->add('category', 'entity', array(
            'class' => 'DEMO\DemoBundle\Entity\Product\ProductCategory',
            'query_builder' => function(EntityRepository $er) {
                return $er->createQueryBuilder('u')
                    ->where('u.section = :id')
                    ->setParameter('id', $options['id'])
                    ->orderBy('u.root', 'ASC')
                    ->addOrderBy('u.lft', 'ASC');
            },
            'empty_value' => 'Choose an option',
            'property' => 'indentedName',
        ));
}

public function getDefaultOptions()
{
    return array(
        'data_class' => 'DEMO\DemoBundle\Entity\Product\Product'
        'id' => null
    );
}

And in the controller

$form = $this->createForm(new ProductType(), $product, array('id' => $id ));