public function LengthValidator::validate

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

drupal/core/vendor/symfony/validator/Symfony/Component/Validator/Constraints/LengthValidator.php, line 26

Class

LengthValidator

@author Bernhard Schussek <bschussek@gmail.com>

Namespace

Code

public function validate($value, Constraint $constraint) {
  if (null === $value || '' === $value) {
    return;
  }
  if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
    throw new UnexpectedTypeException($value, 'string');
  }
  $stringValue = (string) $value;
  if (function_exists('grapheme_strlen') && 'UTF-8' === $constraint->charset) {
    $length = grapheme_strlen($stringValue);
  }
  elseif (function_exists('mb_strlen')) {
    $length = mb_strlen($stringValue, $constraint->charset);
  }
  else {
    $length = strlen($stringValue);
  }
  if ($constraint->min == $constraint->max && $length != $constraint->min) {
    $this->context
      ->addViolation($constraint->exactMessage, array(
      '{{ value }}' => $stringValue,
      '{{ limit }}' => $constraint->min,
    ), $value, (int) $constraint->min);
    return;
  }
  if (null !== $constraint->max && $length > $constraint->max) {
    $this->context
      ->addViolation($constraint->maxMessage, array(
      '{{ value }}' => $stringValue,
      '{{ limit }}' => $constraint->max,
    ), $value, (int) $constraint->max);
    return;
  }
  if (null !== $constraint->min && $length < $constraint->min) {
    $this->context
      ->addViolation($constraint->minMessage, array(
      '{{ value }}' => $stringValue,
      '{{ limit }}' => $constraint->min,
    ), $value, (int) $constraint->min);
  }
}