gistfile1.txt

<?php

namespace App\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Form\FormError;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Doctrine\ORM\EntityManagerInterface;
use App\Service\FileUploader;

class ImageType extends AbstractType {

    /**
     * @var EntityManagerInterface
     */
    protected $entityManager;
    
    /**
     * @var RequestStack
     */
    protected $requestStack;

    /**
     * @var FileUploader 
     */
    protected $fileUploader;
    
    public function __construct(
            EntityManagerInterface $entityManager,
            RequestStack $requestStack, 
            FileUploader $fileUploader
    ) {
        $this->entityManager = $entityManager;
        $this->requestStack = $requestStack;
        $this->fileUploader = $fileUploader;
    }

    public function buildForm(FormBuilderInterface $builder, array $options) {
        $builder
                ->add('image', FileType::class, [
                    'required' => false,
                    'mapped' => false,
                    'constraints' => [
                        new Assert\File([
                            "mimeTypes" => ["image/jpg", "image/jpeg", "image/gif", "image/png"]
                                ])
                    ],
                ])
                ->add('file_name', HiddenType::class, [
                    'required' => false,
                ])
        ;
    }

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

}