Question

如何创建一个字段（下拉列表），其中Pracownik列表由idPlachta（会话变量）显示？

public function buildForm(FormBuilderInterface $builder, array $options){
    $session = $options['session'];

    $builder
        ->setMethod('GET')
        ->add('idPracownik');   //this place
}


public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'AppBundle\Entity\Przydzial',
        'session' => null,
    ));
}


public function getBlockPrefix()
{
    return 'appbundle_przydzial';
}

Answer 1

您可以创建自己的pracownik选择类型并在任何地方使用

class PracownikChoiceType extends AbstractType
{
    /**
     * @var SessionInterface
     */
    private $session;

    public function __construct(SessionInterface $session)
    {
        $this->session = $session;
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver
            ->setDefault('class', 'Your\Entity\ClassName')
            ->setDefault('query_builder', function (EntityRepository $repository) {
                $queryBuilder = $repository->createQueryBuilder('o');

                $queryBuilder
                    ->select('o')
                    ->where($queryBuilder->expr()->eq('o.plachtaId', ':id'))
                    ->setParameter('id', $this->session->get('idPlachta'))
                ;

                return $queryBuilder;
            })
        ;
    }

    /**
     * {@inheritdoc}
     */
    public function getParent()
    {
        return EntityType::class;
    }
}

要将session服务注入此表单类型，您应将其创建为服务：

<service id="your.service.id" class="Your\Namespace\Form\Type\PracownikChoiceType">
    <argument type="service" id="session" />

    <tag name="form.type" />
</service>

现在，您可以在任何地方使用此表单类型，而不需要构建$choices列表。

// Usage with `FormInterface` instance
$form
    ->add('plachta', PracownikChoiceType::class, array(
        'label' => 'Plachta',
        'attr' => array(
            'class' => 'form-control',
            'style' => 'margin-bottom: 15px'
        )
    ))
;

// Usage with `FormBuilderInterface` instance
$formBuilder
    ->add('plachta', PracownikChoiceType::class, array(
        'label' => 'Plachta',
        'attr' => array(
            'class' => 'form-control',
            'style' => 'margin-bottom: 15px'
        )
    ))
;

如何创建一个字段（下拉列表），按$ session显示列表

1 个答案: