Symfony 表单提交错误“复合表单在提交时需要一个数组或 NULL”用于禁用表单字段

Question

我有一个带有“clientCategoryRates”字段的 FormType，该字段要么显示、禁用（禁用 html 属性），要么根据用户的角色从表单中完全删除。

如果该字段被禁用，我会在提交表单时收到错误“复合表单需要一个数组或提交时为 NULL”。 我无法理解为什么会发生这种情况。

以下是我的 FormType 的相关行：

<?php

namespace App\Form\Type;

use App\Entity\Client;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;

class ClientType extends AbstractType
{
    protected $auth;

    public function __construct(AuthorizationCheckerInterface $auth) {
        $this->auth = $auth;
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            // ...
            ->add('clientCategoryRates', CollectionType::class, [
                'label' => false,
                'required' => false,
                'empty_data' => [],
                'entry_type' => ClientCategoryRateType::class,
                'is_granted_role' => 'ROLE_CEO',
                'is_granted_hide' => !$this->auth->isGranted('ROLE_PM'),
                'is_granted_disabled' => $this->auth->isGranted('ROLE_CEO'),
            ]);
        
        if($this->auth->isGranted('ROLE_PM')) {
            $builder->add('save', SubmitType::class, [
                'label' => 'Speichern'
            ]);
        }
    }

    public function finishView(FormView $view, FormInterface $form, array $options)
    {
        if(array_key_exists('clientCategoryRates', $view->children)){
            usort($view['clientCategoryRates']->children, function (FormView $a, FormView $b) {
                return ($a->vars['data']->getCategory()->getName() < $b->vars['data']->getCategory()->getName()) ? -1 : 1;
            });
        }
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => Client::class,
            'constraints' => [
                new UniqueEntity([
                    'fields' => 'name',
                ]),
                new UniqueEntity([
                    'fields' => 'clientId',
                ]),
            ],
        ]);
    }
}

我知道浏览器不会发送禁用的表单字段。 我尝试在PRE_SUBMIT事件处理程序中手动添加该字段，并尝试将'empty_data' => [],到集合中，但两个想法都导致了相同的错误。

编辑： IsGrantedExtension 的代码。 我认为它来自这里（ https://jolicode.com/blog/how-to-mix-security-and-form-with-symfony ）。 我可能已经编辑了一点。

<?php

namespace App\Form\Extension;

use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\Extension\Core\Type\FormType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;

class IsGrantedExtension extends AbstractTypeExtension
{
    private $authorizationChecker;

    public function __construct(AuthorizationCheckerInterface $authorizationChecker)
    {
        $this->authorizationChecker = $authorizationChecker;
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        if (!$options['is_granted_role']) {
            return;
        }

        if ($options['is_granted_disabled']) {
            return;
        }

        if ($options['is_granted_hide']) {
            $builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) use ($options) {
                if ($this->isGranted($options)) {
                    return;
                }

                $form = $event->getForm();

                $form->getParent()->remove($form->getName());
            });
        } else {
            $builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) use ($options) {
                if ($this->isGranted($options)) {
                    return;
                }

                $event->setData($event->getForm()->getViewData());
            });
        }
    }

    public function finishView(FormView $view, FormInterface $form, array $options)
    {
        if ($options['is_granted_disabled']) {
            return;
        }

        if ($this->isGranted($options)) {
            return;
        }

        $this->disableView($view);
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'is_granted_role' => null,
            'is_granted_hide' => false,
            'is_granted_disabled' => false,
        ]);
    }

    public static function getExtendedTypes(): iterable
    {
        return [FormType::class];
    }

    private function isGranted(array $options)
    {
        if (!$options['is_granted_role']) {
            return true;
        }

        if ($this->authorizationChecker->isGranted($options['is_granted_role'])) {
            return true;
        }

        return false;
    }

    private function disableView(FormView $view)
    {
        $view->vars['attr']['disabled'] = true;

        foreach ($view as $child) {
            $this->disableView($child);
        }
    }
}