Symfony 4 Custom Validator Constraint is not loading

Jurriën Philips :

I'm trying to create a custom Validator in my Symfony 4.4 project described in https://symfony.com/doc/current/validation/custom_constraint.html

I have added the next files:

src/Validator/Constraints/PhoneNumber.php

<?php

namespace App\Validator\Constraints;

use Symfony\Component\Validator\Constraint;

/**
 * @Annotation
 */
class PhoneNumber extends Constraint
{
    public $message = 'The string contains an illegal character: it can only contain letters or numbers.';
}

src/Validator/Constraints/PhoneNumberValidator.php

namespace App\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;

class PhoneNumberValidator extends ConstraintValidator
{
    public function validate($value, Constraint $constraint)
    {
        dd('er wordt gevalideerd!');

        if (!$constraint instanceof PhoneNumber) {
            throw new UnexpectedTypeException($constraint, PhoneNumber::class);
        }

        // custom constraints should ignore null and empty values to allow
        // other constraints (NotBlank, NotNull, etc.) take care of that
        if (null === $value || '' === $value) {
            return;
        }

        if (!is_string($value)) {
            // throw this exception if your validator cannot handle the passed type so that it can be marked as invalid
            throw new UnexpectedValueException($value, 'string');

            // separate multiple types using pipes
            // throw new UnexpectedValueException($value, 'string|int');
        }

        if (!preg_match('/^[a-zA-Z0-9]+$/', $value, $matches)) {
            // the argument must be a string or an object implementing __toString()
            $this->context->buildViolation($constraint->message)
                ->setParameter('{{ string }}', $value)
                ->addViolation();
        }
    }
}

config/validator/validation.yaml

App\Entity\AcmeEntity:
    properties:
        name:
            - NotBlank: ~
            - App\Validator\Constraints\ContainsAlphanumeric: ~

After i have tried the above the validator doesn't respond... So next thing i have tried is to add the validator constraint to my Entity Contact.

src/Entity/Contact.php

<?php

namespace App\Entity;

use ApiPlatform\Core\Annotation\ApiResource;
use Doctrine\ORM\Mapping as ORM;

use App\Validator\Constraints as CustomAssert ;

/**
 * @ApiResource()
 * @ORM\Entity(repositoryClass="App\Repository\ContactRepository")
 */
class Contact
{

    .....


    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     * @CustomAssert\PhoneNumber
     */
    private $phoneNumber;

This is also not working.

Someone who see what i am doing wrong or have a suggestion for what i can try? Thanks in advance!

ToosRimpeldoos :

Is it possible that the contraint you are looking for is set from a related entity? if so, then try to pass the validation from the first to the second entity.

This can be done by:

@Assert\Valid()

dont forget to use it:

use Symfony\Component\Validator\Constraints as Assert;

class Contact
{

    .....


    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     * @CustomAssert\PhoneNumber
     */
    private $phoneNumber;
    
    
    
class Person
{

    .....


    /**
     * @ORM\OneToOne(targetEntity="App\Entity\Contact")
     * @Assert\Valid()
     */
    private $contact;