Symfony 6-无法将数据注入post_submit上的动态formtype

Question

我的嵌套形式有问题。我无法获得要通过的值。 这是一个简单的示例来复制我的问题，我想根据所选房屋以我的形式为用户预填充表格。
如果要测试，这是文件。我想注入roger和billy的值的值，但我的用户

模型

class Test
{
    /**
     * @var string|null
     */
    private $house;

    /**
     * @var TestUser|null
     */
    private $user;

    // Getters & Setters of course...   
}

class TestUser
{
    /**
     * @var string|null
     */
    private $name;

    /**
     * @var int|null
     */
    private $age;

    // Getters & Setters again...
}

为

class TestType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('house', ChoiceType::class, [
                    'choices' => [
                        'first'  => 1,
                        'second' => 2,
                    ],
                ]
            );

        $builder->get('house')->addEventListener(FormEvents::POST_SUBMIT, [$this, 'addUser']);
    }


    function addUser(FormEvent $event)
    {
        $form  = $event->getForm()->getParent();
        $house = $event->getForm()->getData();

        if (!$house) {
            return;
        }

        // here is the part where I choose the user I want to use 
        // for the rest of the example (which does not work)
        $testUser = $house === 1
            ? (new TestUser())->setName('roger')->setAge(65)
            : (new TestUser())->setName('billy')->setAge(22);

        $builder = $form->getConfig()->getFormFactory()->createNamedBuilder('user', TestUserType::class, $testUser, [
            'auto_initialize' => false,
        ]);

        $form->add($builder->getForm());
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'data_class' => Test::class,
        ]);
    }
}

始终

class TestUserType extends AbstractType
{

    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('name', TextType::class, ['label' => 'username'])
            ->add('age', IntegerType::class, ['label' => 'age']);
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'data_class' => TestUser::class,
        ]);
    }
}

。

public function testForm(Request $request): RedirectResponse|Response
{
    // ...
    $test = new Test();
    $form = $this->createForm(TestType::class, $test);
    $form->handleRequest($request);
    // ...
}

字段

{{ form_start(formtest) }}
  <p>
    <button class="btn btn-primary" type="submit">test go</button>
  </p>
{{ form_end(formtest) }}

空 欢迎

Answer 1

Setter实际上返回$吗？

当执行 - ＆GT; setage（65）时。

因为这不清楚，所以您不在您提供的代码中。

Answer 2

您需要将$ user $ age $ house 和$ name链接到您拥有的输入字段。
您始终获得空输出的原因是变量的非变量指的是任何数据源。