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<?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\Countries;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\LogicException;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
/**
* Validates whether a value is a valid country code.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class CountryValidator extends ConstraintValidator
{
/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Country) {
throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Country');
}
if (null === $value || '' === $value) {
return;
}
if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
throw new UnexpectedValueException($value, 'string');
}
if (!class_exists(Countries::class)) {
throw new LogicException('The Intl component is required to use the Country constraint. Try running "composer require symfony/intl".');
}
$value = (string) $value;
if (!Countries::exists($value)) {
$this->context->buildViolation($constraint->message)
->setParameter('{{ value }}', $this->formatValue($value))
->setCode(Country::NO_SUCH_COUNTRY_ERROR)
->addViolation();
}
}
}
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