Sylius\Bundle\OrderBundle\Doctrine\ORM\OrderRepository::findCartById PHP Метод

    public function findCartById($id)
    {
        return $this->createQueryBuilder('o')->where('o.id = :id')->andWhere('o.state = :state')->setParameter('state', OrderInterface::STATE_CART)->setParameter('id', $id)->getQuery()->getOneOrNullResult();
    }