Symfony 5 Constraint Validation : Customize error message - php

Question

I want to use the new NotCompromisedPassword released on SF 4.3 :
https://symfony.com/blog/new-in-symfony-4-3-compromised-password-validator
I've set it up on my validation.yaml like this :
App\Entity\User:
constraints:
- App\Validator\Constraints\ConstraintPassword: ~
properties:
plainPassword:
- Symfony\Component\Validator\Constraints\NotCompromisedPassword: ~
It works, but i want to customize the error message, for example, by using it directly on my ConstraintPasswordValidator.php :
<?php
namespace App\Validator\Constraints;
use App\Entity\User;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Constraints\NotCompromisedPassword;
use Symfony\Component\Validator\ConstraintValidator;
class ConstraintPasswordValidator extends ConstraintValidator
{
/**
* #param User $user
* #param Constraint $constraint
*/
public function validate($user, Constraint $constraint)
{
if (strlen($user->getPlainPassword()) < 8 || strlen($user->getPlainPassword() < 35)) {
$this->context->buildViolation($constraint->lengthError)
->addViolation();
}
// Doing something like that
$notCompromised = new NotCompromisedPassword();
$notCompromised->message = "My custom error message";
//Then, build the violation if password leaked
}
}
Maybe it needs to be instantiated and customized in my ConstraintPassword.php ? But i don't know how
<?php
namespace App\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
class ConstraintPassword extends Constraint
{
public $lengthError = 'Erreur : La longueur du mot de passe doit être comprise entre 8 et 35 caractères';
public function validatedBy()
{
return \get_class($this).'Validator';
}
public function getTargets()
{
return self::CLASS_CONSTRAINT;
}
}

Answer 1

You can pass the message option on the validation.yaml
App\Entity\User:
properties:
plainPassword:
- Symfony\Component\Validator\Constraints\NotCompromisedPassword:
message: "You error message"
But if you want to validate a constraint into a validator, you can use :
class MyValidator extends ConstraintValidator
{
public function validate($value, Constraint $chain)
{
// Previous check...
$groups = $this->context->getGroup();
$violations = $this->context->getViolations();
$current = $violations->count();
// Execute the new constraint
$this->context->getValidator()
->inContext($this->context)
->validate($value, new MyOtherConstraint(), $groups);
// Check if the constraint has failed
if ($violations->count() !== $current) {
return;
}
}
}