UniqueDTOValidator

UniqueDTO.php

<?php

declare(strict_types=1);

namespace App\Validator\Constraints;

use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * Checks if entity associatied to DTO is unique.
 *
 * @Annotation
 * @Target({"CLASS", "ANNOTATION"})
 */
class UniqueDTO extends UniqueEntity
{
    /**
     * Class on which will be DTO transferred before uniqueness check.
     *
     * @var string
     */
    public $mapToEntityClass;

    /**
     * Entity class which will be used for uniqueness check.
     *
     * @var string
     */
    public $entityClass;

    /**
     * @return string[]
     */
    public function getRequiredOptions(): array
    {
        return ['fields', 'entityClass'];
    }

    public function validatedBy(): string
    {
        return UniqueDTOValidator::class;
    }
}

UniqueDTOValidator.php

<?php

declare(strict_types=1);

namespace App\Validator\Constraints;

use AutoMapperPlus\AutoMapperInterface;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntityValidator;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

class UniqueDTOValidator extends ConstraintValidator
{
    /**
     * @var UniqueEntityValidator
     */
    private $uniqueEntityValidator;
    /**
     * @var AutoMapperInterface
     */
    private $autoMapper;
    /**
     * @var EntityManagerInterface
     */
    private $entityManager;

    public function __construct(
        UniqueEntityValidator $uniqueEntityValidator,
        AutoMapperInterface $autoMapper,
        EntityManagerInterface $entityManager
    ) {
        $this->autoMapper = $autoMapper;
        $this->uniqueEntityValidator = $uniqueEntityValidator;
        $this->entityManager = $entityManager;
    }

    /**
     * @param object $dtoObject
     * @param UniqueDTO|Constraint $constraint
     */
    public function validate($dtoObject, Constraint $constraint): void
    {
        $entity = $this->getEntity($dtoObject, $constraint);

        $this->uniqueEntityValidator->context = $this->context;
        $this->uniqueEntityValidator->validate($entity, $constraint);
    }

    /**
     * @param object $dtoObject
     * @param UniqueDTO|Constraint $constraint
     *
     * @return object
     */
    private function getEntity($dtoObject, Constraint $constraint)
    {
        $entityClass = $constraint->mapToEntityClass ?: $constraint->entityClass;

        if (property_exists($dtoObject, 'id')) {
            $entity = $this->entityManager->getRepository($entityClass)->find($dtoObject->id);

            return $this->autoMapper->mapToObject($dtoObject, $entity);
        }

        return $this->autoMapper->map($dtoObject, $entityClass);
    }
}

Merci