function LengthValidator::validate

Overrides ConstraintValidatorInterface::validate

File

vendor/symfony/validator/Constraints/LengthValidator.php, line 24

Class

LengthValidator

@author Bernhard Schussek <bschussek@gmail.com>

Namespace

Symfony\Component\Validator\Constraints

Code

public function validate(mixed $value, Constraint $constraint) : void {
    if (!$constraint instanceof Length) {
        throw new UnexpectedTypeException($constraint, Length::class);
    }
    if (null === $value) {
        return;
    }
    if (!\is_scalar($value) && !$value instanceof \Stringable) {
        throw new UnexpectedValueException($value, 'string');
    }
    $stringValue = (string) $value;
    if (null !== $constraint->normalizer) {
        $stringValue = ($constraint->normalizer)($stringValue);
    }
    try {
        $invalidCharset = !@mb_check_encoding($stringValue, $constraint->charset);
    } catch (\ValueError $e) {
        if (!str_starts_with($e->getMessage(), 'mb_check_encoding(): Argument #2 ($encoding) must be a valid encoding')) {
            throw $e;
        }
        $invalidCharset = true;
    }
    $length = $invalidCharset ? 0 : match ($constraint->countUnit) {    Length::COUNT_BYTES => \strlen($stringValue),
        Length::COUNT_CODEPOINTS => mb_strlen($stringValue, $constraint->charset),
        Length::COUNT_GRAPHEMES => grapheme_strlen($stringValue),
    
    };
    if ($invalidCharset || false === ($length ?? false)) {
        $this->context
            ->buildViolation($constraint->charsetMessage)
            ->setParameter('{{ value }}', $this->formatValue($stringValue))
            ->setParameter('{{ charset }}', $constraint->charset)
            ->setInvalidValue($value)
            ->setCode(Length::INVALID_CHARACTERS_ERROR)
            ->addViolation();
        return;
    }
    if (null !== $constraint->max && $length > $constraint->max) {
        $exactlyOptionEnabled = $constraint->min == $constraint->max;
        $this->context
            ->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->maxMessage)
            ->setParameter('{{ value }}', $this->formatValue($stringValue))
            ->setParameter('{{ limit }}', $constraint->max)
            ->setParameter('{{ value_length }}', $length)
            ->setInvalidValue($value)
            ->setPlural($constraint->max)
            ->setCode($exactlyOptionEnabled ? Length::NOT_EQUAL_LENGTH_ERROR : Length::TOO_LONG_ERROR)
            ->addViolation();
        return;
    }
    if (null !== $constraint->min && $length < $constraint->min) {
        $exactlyOptionEnabled = $constraint->min == $constraint->max;
        $this->context
            ->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->minMessage)
            ->setParameter('{{ value }}', $this->formatValue($stringValue))
            ->setParameter('{{ limit }}', $constraint->min)
            ->setParameter('{{ value_length }}', $length)
            ->setInvalidValue($value)
            ->setPlural($constraint->min)
            ->setCode($exactlyOptionEnabled ? Length::NOT_EQUAL_LENGTH_ERROR : Length::TOO_SHORT_ERROR)
            ->addViolation();
    }
}