如何在Symfony中循环form/new实体

use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class TaskType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('tasks', CollectionType::class, [
                'entry_type' => TextType::class,
                'allow_add' => true,
                'allow_delete' => true,
                'by_reference' => false,
            ]);
    }
}

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class TaskController extends AbstractController
{
    /**
     * @Route("/task/new", name="task_new")
     */
    public function new(Request $request)
    {
        $task = new Task();
        $form = $this->createForm(TaskType::class, $task);

        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            // 处理表单提交逻辑

            return $this->redirectToRoute('task_success');
        }

        return $this->render('task/new.html.twig', [
            'form' => $form->createView(),
        ]);
    }
}

{# templates/task/new.html.twig #}

<form method="post">
    {{ form_start(form) }}
    {{ form_row(form.tasks) }}
    <button type="submit">提交</button>
    {{ form_end(form) }}
</form>