Sulu form fixture and use in document fixture

DocumentFixture.php

<?php

namespace App\DataFixtures\Document;

use Doctrine\ORM\EntityManagerInterface;
use Sulu\Bundle\FormBundle\Entity\Form;
use Sulu\Component\DocumentManager\DocumentManager;
use Sulu\Bundle\DocumentManagerBundle\DataFixtures\DocumentFixtureInterface;

class HomepageFixture implements DocumentFixtureInterface
{
    const LOCALE = 'en';

    private EntityManagerInterface $entityManager;

    public function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    public function getOrder(): int
    {
        return 10;
    }

    public function load(DocumentManager $documentManager)
    {
        $document = $documentManager->find('/cmf/your_webspace_key/contents', 'en');

        $document->setLocale(static::LOCALE);
        $document->setTitle('My Awesome Homepage');
        $document->setStructureType('homepage');

        $document->getStructure()->bind(
          [
                'section_title' => 'Oh my god look at this awesome form!',
                'my_awesome_form' => $this->getFormWithTitle('Contact form')->getId(),
          ]
        );

        $document->setExtension('seo', [
            'title' => 'MyAwesomeWebsite | We do the awesomes',
        ]);

        $documentManager->persist($document, static::LOCALE, [
            'parent_path' => '/cmf/your_webspace_key/contents',
        ]);

        $documentManager->publish($document, static::LOCALE);
        $documentManager->flush();
    }

    private function getFormWithTitle(?string $title): Form
    {
        $qb = $this->entityManager->createQueryBuilder();

        $qb
            ->from(Form::class, 'form')
            ->innerJoin('form.translations', 'translation')
            ->select('form')
            ->where($qb->expr()->eq('translation.title', ':title'))
            ->setParameter('title', $title)
        ;

        return $qb->getQuery()->getSingleResult();
    }
}

FormFixture.php

<?php

namespace App\DataFixtures;

use Doctrine\Bundle\FixturesBundle\Fixture;
use Doctrine\Persistence\ObjectManager;
use Sulu\Bundle\FormBundle\Entity\Form;
use Sulu\Bundle\FormBundle\Entity\FormField;
use Sulu\Bundle\FormBundle\Entity\FormFieldTranslation;
use Sulu\Bundle\FormBundle\Entity\FormTranslation;

class AppointmentFormFixture extends Fixture
{
    public function load(ObjectManager $manager)
    {
        $form = new Form();
        $form->setDefaultLocale('en');

        $formTranslation = new FormTranslation();
        $formTranslation->setForm($form);
        $formTranslation->setLocale('en');
        $formTranslation->setTitle('Contact form');
        $formTranslation->setSubject('New form submission on the website you manage');
        $formTranslation->setFromEmail('appointments@yourdomain.be');
        $formTranslation->setFromEmail('info@yourdomain.be');
        $formTranslation->setSubmitLabel('Send');
        $formTranslation->setSuccessText('Awesome! Form has been submitted!');

        $form->addTranslation($formTranslation);

        $formFields = [
            [
                'key' => 'full_name',
                'type' => 'text',
                'width' => 'full',
                'required' => true,
                'default_locale' => 'en',
                'title' => 'Full name',
            ],
            [
                'key' => 'email',
                'type' => 'email',
                'width' => 'full',
                'required' => true,
                'default_locale' => 'en',
                'title' => 'E-mail address',
            ],
            [
                'key' => 'phone',
                'type' => 'text',
                'width' => 'full',
                'required' => false,
                'default_locale' => 'en',
                'title' => 'Phone number',
            ],
        ];

        $i = 0;

        foreach ($formFields as $formField) {
            $fieldObject = $this->createFormField($formField, $i);
            $fieldObject->setForm($form);
            $form->addField($fieldObject);

            $i++;
        }

        $manager->persist($form);
        $manager->flush();
    }

    private function createFormField(array $fieldData, int $order): FormField
    {
        $formField = new FormField();
        $formFieldTranslation = new FormFieldTranslation();
        $formFieldTranslation->setField($formField);
        $formField->addTranslation($formFieldTranslation);

        $formField->setKey($fieldData['key']);
        $formField->setType($fieldData['type']);
        $formField->setWidth($fieldData['width']);
        $formField->setRequired($fieldData['required']);
        $formField->setDefaultLocale($fieldData['default_locale']);
        $formField->setOrder($order);

        $formFieldTranslation->setLocale('en');
        $formFieldTranslation->setTitle($fieldData['title']);
        $formFieldTranslation->setPlaceholder($fieldData['placeholder'] ?? null);

        return $formField;
    }
}