Question

我有一个FormType可以重复用于编辑＆amp;创建记录。此表单有一个实体字段，根据记录ID呈现为填充的选择，因此我需要在创建新记录时跳过此字段。我读了http://symfony.com/doc/current/cookbook/form/dynamic_form_modification.html，在改变了一些根源之后，在我遇到这个错误时，我试图编辑现有记录之前似乎一切正常：

ContextErrorException：注意：未定义的变量：/ Users / a77 / Documents / DEV / UVox Com / src / Acme / DemoBundle / EventListener / VenueFieldSubscriber.php第32行中的选项

Mi VenuesFormType是：

namespace Acme\DemoBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Acme\DemoBundle\EventListener\VenueFieldSubscriber;


class VenuesType extends AbstractType {

    public function buildForm(FormBuilderInterface $builder, array $options) {

        $builder
                ->add('name', 'text')
                ->add('password', 'text')
                ->add('save', 'submit', array('label' => 'Save', 'attr' => array('data-loading-text' => 'loading', 'class' => "btn btn-primary")))

                ->addEventSubscriber(new VenueFieldSubscriber());
    }

 /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver) {
        $resolver->setDefaults(array(
            'data_class' => 'Acme\DemoBundle\Entity\Venues'
        ));
    }

    /**
     * @return string
     */
    public function getName() {
        return 'acme_demobundle_venues';
    }

}

我的VenueFieldSubscriber是：

namespace Acme\DemoBundle\EventListener;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Doctrine\ORM\EntityRepository;

class VenueFieldSubscriber implements EventSubscriberInterface {

    public static function getSubscribedEvents() {
        // Tells the dispatcher that you want to listen on the form.pre_set_data
        // event and that the preSetData method should be called.
        return array(FormEvents::PRE_SET_DATA => 'preSetData');
    }

    public function preSetData(FormEvent $event) {
        $product = $event->getData();
        $form = $event->getForm();

        if (!$product || null === $product->getId()) {
            // no action for new record
        } else {

            $form->add('user', 'entity', array(
                'class' => 'AcmeDemoBundle:Users',
                'property' => 'username',
                'query_builder' => function(EntityRepository $er) use ($options) {
            return $er->createQueryBuilder('u')
                            ->Where('u.venue=?1')
                            ->andWhere('u.usertype >1')
                            ->orderBy('u.username', 'ASC')
                            ->setParameter(1, $options['attr']['venueid']);
        }
            ));


        }
    }

任何想法，我错过了什么？ $ options [＆＃39; attr＆＃39;] [＆＃39; venueid＆＃39;]应该为我提供我正在编辑的记录的ID ...谢谢;）

Answer 1

我认为在

之后

$product = $event->getData();

$product是Acme\DemoBundle\Entity\Venues类的对象。

然后代替

->setParameter(1, $options['attr']['venueid'])

尝试

->setParameter(1, $product->getId())

将选项数组从FormType传递给EventListerner

1 个答案: