protected function getQueryBuilder(DataSetRequestInterface $request) : QueryBuilder
 {
     $queryBuilder = parent::getQueryBuilder($request);
     $expression = $queryBuilder->expr()->eq('order_product.order', ':order');
     $queryBuilder->andWhere($expression);
     $queryBuilder->setParameter('order', $this->provider->getCurrentOrderIdentifier());
     $queryBuilder->setParameter('date', (new \DateTime())->setTime(0, 0, 1));
     return $queryBuilder;
 }
 public function getCurrentOrder() : OrderInterface
 {
     return $this->orderProvider->getCurrentOrder();
 }