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" (this is shown in the official Symfony 2 Documentation, but never mentioned, ever!)

I have fed an array into the createForm function in my controller but now I am totally stumped on how to retrieve the stored values?

$form = $this->createForm(new ProductType(array(), array('id' => '2')), $product);

The only thing I have found about getting the options is using the getOption() function, but that doesn't exist in Symfony 2 (the post I found was from 2010).

I tried using:

$id = $options['id'];

But when I try to use $id anywhere, I get the error:

Notice: Undefined index: id

What gives?

How do I retrieve my values from the $options array? Am I even setting them correctly in the first place?

EDIT - More code:

Form Class

<?php

namespace DEMO\DemoBundle\Form\Product;

use Doctrine\ORM\EntityRepository;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;

class ProductType extends AbstractType
{
    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', ***ID VARIABLE NEEDS TO GO HERE***)
                        ->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'
        );
    }

    public function getName()
    {
        return 'demo_demobundle_product_type';
    }
}

Answer 1

I think you're not setting them properly in the first place. You're supposed to give them as third argument to createForm()

EDIT: Here is how your form class could look:

<?php
namespace DEMO\DemoBundle\Form\Product;

use Doctrine\ORM\EntityRepository;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;

class ProductType extends AbstractType
{
    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 $er) use($options) {
                    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
        );
    }

    public function getName()
    {
        return 'demo_demobundle_product_type';
    }
}

Answer 2

Let me show you what worked for me

In the Controller:

$form = $this->createForm(new UsersType(), $entity, array(
    'attr' => array('locationId' => $currentLocationId)));

In the FormType:

->add('location', 'entity', array(
        'class' => 'Ro\RoinventBundle\Entity\Locations',
         'query_builder' => function (\Doctrine\ORM\EntityRepository $er) use ($options)
        {
            if (isset($options['attr']['locationId']) && ($options['attr']['locationId'] != NULL))
            {
                return $er->createQueryBuilder('Locations')
                    ->where('Locations.id = :param')
                    ->setParameter('param', $options['attr']['locationId']);
            }
            //else do what you want
},
));