function RangeConstraintValidator::validate

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/RangeConstraintValidator.php, line 18

Class

RangeConstraintValidator

Validator for the Drupal 'range' constraint.

Namespace

Code

public function validate($value, Constraint $constraint) {
    if (!$constraint instanceof Range) {
        throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Range');
    }
    if (NULL === $value) {
        return;
    }
    if (!is_numeric($value) && !$value instanceof \DateTimeInterface) {
        $this->context
            ->buildViolation($constraint->invalidMessage)
            ->setParameter('{{ value }}', $this->formatValue($value, self::PRETTY_DATE))
            ->setCode(Range::INVALID_CHARACTERS_ERROR)
            ->addViolation();
        return;
    }
    $min = $constraint->min;
    $max = $constraint->max;
    // Convert strings to DateTimes if comparing another DateTime.
    // This allows to compare with any date/time value supported by
    // the DateTime constructor.
    // @see http://php.net/manual/en/datetime.formats.php
    if ($value instanceof \DateTimeInterface) {
        if (\is_string($min)) {
            $min = new \DateTime($min);
        }
        if (\is_string($max)) {
            $max = new \DateTime($max);
        }
    }
    if (NULL !== $constraint->max && $value > $max) {
        $this->context
            ->buildViolation($constraint->maxMessage)
            ->setParameter('{{ value }}', $this->formatValue($value, self::PRETTY_DATE))
            ->setParameter('{{ limit }}', $this->formatValue($max, self::PRETTY_DATE))
            ->setCode(Range::TOO_HIGH_ERROR)
            ->addViolation();
        return;
    }
    if (NULL !== $constraint->min && $value < $min) {
        $this->context
            ->buildViolation($constraint->minMessage)
            ->setParameter('{{ value }}', $this->formatValue($value, self::PRETTY_DATE))
            ->setParameter('{{ limit }}', $this->formatValue($min, self::PRETTY_DATE))
            ->setCode(Range::TOO_LOW_ERROR)
            ->addViolation();
    }
}