* * 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 */ 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); } } }