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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
/**
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class LengthValidator extends ConstraintValidator
{
/**
* {@inheritDoc}
*/
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);
}
}
}
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