📚 Cheatsheet

use Symfony\Component\Validator\Constraints as Assert;

#[Assert\NotBlank]
#[Assert\Length(min: 3)]
private ?string $titre = null;

public function buildForm(FormBuilderInterface $builder, array $options): void
{
    $builder
        ->add('titre', TextType::class)
        ->add('contenu', TextareaType::class)
        ->add('sauvegarder', SubmitType::class);
}

$article = new Article();
$form = $this->createForm(ArticleType::class, $article);
$form->handleRequest($request);

if ($form->isSubmitted() && $form->isValid()) {
    // ... persister l'article
}

php bin/console make:form ArticleType

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

{{ form_start(monFormulaire) }}
    {{ form_row(monFormulaire.titre) }}
    {{ form_row(monFormulaire.contenu) }}
{{ form_end(monFormulaire) }}

{{ form(monFormulaire) }}

use Symfony\Bridge\Doctrine\Form\Type\EntityType;

$builder->add('categorie', EntityType::class, [
    'class' => Categorie::class,
    'choice_label' => 'nom',
]);