public function RangeConstraintValidator::validate in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/RangeConstraintValidator.php \Drupal\Core\Validation\Plugin\Validation\Constraint\RangeConstraintValidator::validate()
2. 10 core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/RangeConstraintValidator.php \Drupal\Core\Validation\Plugin\Validation\Constraint\RangeConstraintValidator::validate()

File

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

Class

RangeConstraintValidator

Validator for the Drupal 'range' constraint.

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint

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();
  }
}