public function LengthValidator::validate in Plug 7

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

lib/Symfony/validator/Symfony/Component/Validator/Constraints/LengthValidator.php, line 26

Class

LengthValidator

@author Bernhard Schussek <bschussek@gmail.com>

Namespace

Symfony\Component\Validator\Constraints

Code

public function validate($value, Constraint $constraint) {
  if (!$constraint instanceof Length) {
    throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Length');
  }
  if (null === $value || '' === $value) {
    return;
  }
  if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
    throw new UnexpectedTypeException($value, 'string');
  }
  $stringValue = (string) $value;
  $invalidCharset = false;
  if ('UTF8' === ($charset = strtoupper($constraint->charset))) {
    $charset = 'UTF-8';
  }
  if (function_exists('iconv_strlen')) {
    $length = @iconv_strlen($stringValue, $constraint->charset);
    $invalidCharset = false === $length;
  }
  elseif (function_exists('mb_strlen')) {
    if (mb_check_encoding($stringValue, $constraint->charset)) {
      $length = mb_strlen($stringValue, $constraint->charset);
    }
    else {
      $invalidCharset = true;
    }
  }
  elseif ('UTF-8' !== $charset) {
    $length = strlen($stringValue);
  }
  elseif (!preg_match('//u', $stringValue)) {
    $invalidCharset = true;
  }
  elseif (function_exists('utf8_decode')) {
    $length = strlen(utf8_decode($stringValue));
  }
  else {
    preg_replace('/./u', '', $stringValue, -1, $length);
  }
  if ($invalidCharset) {
    $this
      ->buildViolation($constraint->charsetMessage)
      ->setParameter('{{ value }}', $this
      ->formatValue($stringValue))
      ->setParameter('{{ charset }}', $constraint->charset)
      ->setInvalidValue($value)
      ->addViolation();
    return;
  }
  if (null !== $constraint->max && $length > $constraint->max) {
    $this
      ->buildViolation($constraint->min == $constraint->max ? $constraint->exactMessage : $constraint->maxMessage)
      ->setParameter('{{ value }}', $this
      ->formatValue($stringValue))
      ->setParameter('{{ limit }}', $constraint->max)
      ->setInvalidValue($value)
      ->setPlural((int) $constraint->max)
      ->setCode(Length::TOO_LONG_ERROR)
      ->addViolation();
    return;
  }
  if (null !== $constraint->min && $length < $constraint->min) {
    $this
      ->buildViolation($constraint->min == $constraint->max ? $constraint->exactMessage : $constraint->minMessage)
      ->setParameter('{{ value }}', $this
      ->formatValue($stringValue))
      ->setParameter('{{ limit }}', $constraint->min)
      ->setInvalidValue($value)
      ->setPlural((int) $constraint->min)
      ->setCode(Length::TOO_SHORT_ERROR)
      ->addViolation();
  }
}