public function LanguageValidator::validate in Plug 7

Checks if the passed value is valid.

@api

Parameters

mixed $value The value that should be validated:

Constraint $constraint The constraint for the validation:

Overrides ConstraintValidatorInterface::validate

File

lib/Symfony/validator/Symfony/Component/Validator/Constraints/LanguageValidator.php, line 31

Class

LanguageValidator

Validates whether a value is a valid language code.

Namespace

Symfony\Component\Validator\Constraints

Code

public function validate($value, Constraint $constraint) {
  if (!$constraint instanceof Language) {
    throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Language');
  }
  if (null === $value || '' === $value) {
    return;
  }
  if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
    throw new UnexpectedTypeException($value, 'string');
  }
  $value = (string) $value;
  $languages = Intl::getLanguageBundle()
    ->getLanguageNames();
  if (!isset($languages[$value])) {
    $this
      ->buildViolation($constraint->message)
      ->setParameter('{{ value }}', $this
      ->formatValue($value))
      ->addViolation();
  }
}