IS THERE A WAY TO CHECK VALUE IN FORM SYMFONY 2.5 - php

Question

I have an embedded form (oneTo Many relationship).
1 - Entity request
2 - Entity products of the request
I am looking for adapt the form.
I want form can dynamic modify the value when i check the value of the price of this object.
The best is to check the value in the form and compare but I don't know which method can works for my issue.
I would like to do this check in the form "ProductRequestType".
Exemple of my form ProductRequestType :
<?php
namespace \testBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Doctrine\ORM\EntityRepository;
use Doctrine\ORM\EntityManager;
class testRequestProductType extends AbstractType {
/** #var \Doctrine\ORM\EntityManager */
private $em;
/**
* Constructor
*
* #param Doctrine $doctrine
*/
public function __construct($em)
{
$this->em = $em;
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$disabled_exchange = $options['attr']['disabled_exchange'];
$customer_id = $options['attr']['customer_id'];
$builder->add('id', 'hidden');
$builder->add('part_number');
$builder->add('_number');
$builder->add('source_quantity');
$builder->add('quantity');
$builder->add('serial');
$builder->add('buy_date', 'date', array('required' => false,'widget' => 'single_text', 'fotestt' =>'dd/MM/yy'));
$builder->add('return_date', 'date', array('required' => false,'widget' => 'single_text', 'fotestt' =>'dd/MM/yy'));
$builder->add('is_new', null, array('required' => false));
$builder->add('test_comment');
$builder->add('available_stock', 'integer', array('mapped' => false));
$builder->add('buying_price', 'integer', array('mapped' => false));
$builder->add('test_reason', 'entity',
array(
'class' => 'testBundle:testReason',
'property' => 'name',
'expanded' => false,
'multiple' => false
)
);
//I would like to get the price and if the price < 100 the variable $disabled_exchange = true
if($disabled_exchange){
$builder->add('test_action', 'entity',
array(
'class' => 'testBundle:testAction',
'property' => 'label',
'expanded' => false,
'multiple' => false,
'query_builder' => function(EntityRepository $er) {
return $er->createQueryBuilder('u')
->where('u.name != :action')
->setParameter('action', 'exchange');
}
)
);
}else{
$builder->add('test_action', 'entity',
array(
'class' => 'testBundle:testAction',
'property' => 'label',
'expanded' => false,
'multiple' => false
)
);
}
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => '\testBundle\Entity\testRequestProduct',
'disabled_exchange' => false
));
}
public function getName()
{
return 'test_request_product';
}
}
Thank you for your advices.

Answer 1

You can do this by using form event listeners
symfony event doc