convertToPHPValue($value, $this->_platform) not run on scalarMappings

class BinaryType extends Type
{
        const BINARY = 'binary';

        public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
        {
            return sprintf('BINARY(%d)', $fieldDeclaration['length']);
        }

        public function getName()
        {
            return self::BINARY;
        }

        public function convertToPhpValue($value, AbstractPlatform $platform)
        {
            if ($value !== null) {
                $value= unpack('H*', $value);
                return array_shift($value);
            }
        }

        public function convertToDatabaseValue($value, AbstractPlatform $platform)
        {
            if ($value !== null) {
                return pack('H*', $value);
            }
        }
}

$q = $repository->createQueryBuilder('p')->select('p.name, p.surname, p.photographerguid')->where("p.name = 'peter'");
$result = $q->getQuery()->getResult();