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<?php
declare(strict_types=1);
namespace Drupal\user;
use Drupal\Core\Validation\BasicRecursiveValidatorFactory;
use Drupal\Core\Validation\ConstraintManager;
use Symfony\Component\Validator\ConstraintViolationListInterface;
/**
* Provides a username validator.
*
* This validator re-uses the UserName constraint plugin but does not require a
* User entity.
*/
class UserNameValidator {
public function __construct(
protected readonly BasicRecursiveValidatorFactory $validatorFactory,
protected readonly ConstraintManager $constraintManager,
) {}
/**
* Validates a user name.
*
* @return \Symfony\Component\Validator\ConstraintViolationListInterface
* The list of constraint violations.
*/
public function validateName(string $name): ConstraintViolationListInterface {
$validator = $this->validatorFactory->createValidator();
$constraint = $this->constraintManager->create('UserName', []);
return $validator->validate($name, $constraint);
}
}
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