function IsbnValidator::validate

Overrides ConstraintValidatorInterface::validate

File

vendor/symfony/validator/Constraints/IsbnValidator.php, line 30

Class

IsbnValidator

Validates whether the value is a valid ISBN-10 or ISBN-13.

Namespace

Symfony\Component\Validator\Constraints

Code

public function validate(mixed $value, Constraint $constraint) : void {
    if (!$constraint instanceof Isbn) {
        throw new UnexpectedTypeException($constraint, Isbn::class);
    }
    if (null === $value || '' === $value) {
        return;
    }
    if (!\is_scalar($value) && !$value instanceof \Stringable) {
        throw new UnexpectedValueException($value, 'string');
    }
    $value = (string) $value;
    $canonical = str_replace('-', '', $value);
    // Explicitly validate against ISBN-10
    if (Isbn::ISBN_10 === $constraint->type) {
        if (true !== ($code = $this->validateIsbn10($canonical))) {
            $this->context
                ->buildViolation($this->getMessage($constraint, $constraint->type))
                ->setParameter('{{ value }}', $this->formatValue($value))
                ->setCode($code)
                ->addViolation();
        }
        return;
    }
    // Explicitly validate against ISBN-13
    if (Isbn::ISBN_13 === $constraint->type) {
        if (true !== ($code = $this->validateIsbn13($canonical))) {
            $this->context
                ->buildViolation($this->getMessage($constraint, $constraint->type))
                ->setParameter('{{ value }}', $this->formatValue($value))
                ->setCode($code)
                ->addViolation();
        }
        return;
    }
    // Try both ISBNs
    // First, try ISBN-10
    $code = $this->validateIsbn10($canonical);
    // The ISBN can only be an ISBN-13 if the value was too long for ISBN-10
    if (Isbn::TOO_LONG_ERROR === $code) {
        // Try ISBN-13 now
        $code = $this->validateIsbn13($canonical);
        // If too short, this means we have 11 or 12 digits
        if (Isbn::TOO_SHORT_ERROR === $code) {
            $code = Isbn::TYPE_NOT_RECOGNIZED_ERROR;
        }
    }
    if (true !== $code) {
        $this->context
            ->buildViolation($this->getMessage($constraint))
            ->setParameter('{{ value }}', $this->formatValue($value))
            ->setCode($code)
            ->addViolation();
    }
}