54 lines
1.6 KiB
PHP
54 lines
1.6 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Symfony package.
|
|
*
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Symfony\Component\Validator\Constraints;
|
|
|
|
use Symfony\Component\Intl\Languages;
|
|
use Symfony\Component\Validator\Constraint;
|
|
use Symfony\Component\Validator\ConstraintValidator;
|
|
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
|
|
use Symfony\Component\Validator\Exception\UnexpectedValueException;
|
|
|
|
/**
|
|
* Validates whether a value is a valid language code.
|
|
*
|
|
* @author Bernhard Schussek <bschussek@gmail.com>
|
|
*/
|
|
class LanguageValidator extends ConstraintValidator
|
|
{
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function validate($value, Constraint $constraint)
|
|
{
|
|
if (!$constraint instanceof Language) {
|
|
throw new UnexpectedTypeException($constraint, Language::class);
|
|
}
|
|
|
|
if (null === $value || '' === $value) {
|
|
return;
|
|
}
|
|
|
|
if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
|
|
throw new UnexpectedValueException($value, 'string');
|
|
}
|
|
|
|
$value = (string) $value;
|
|
|
|
if ($constraint->alpha3 ? !Languages::alpha3CodeExists($value) : !Languages::exists($value)) {
|
|
$this->context->buildViolation($constraint->message)
|
|
->setParameter('{{ value }}', $this->formatValue($value))
|
|
->setCode(Language::NO_SUCH_LANGUAGE_ERROR)
|
|
->addViolation();
|
|
}
|
|
}
|
|
}
|