/**
  * Update product export date for the given product
  * @param string      $identifier
  * @param JobInstance $jobInstance
  */
 public function updateProductExport($identifier, JobInstance $jobInstance)
 {
     $now = new \DateTime('now', new \DateTimeZone('UTC'));
     $product = $this->productRepository->findByReference((string) $identifier);
     if (class_exists('\\PimEnterprise\\Bundle\\WorkflowBundle\\Model\\PublishedProduct')) {
         if ($product instanceof \PimEnterprise\Bundle\WorkflowBundle\Model\PublishedProduct) {
             /**@var \PimEnterprise\Bundle\WorkflowBundle\Model\PublishedProduct  $product **/
             $productId = $product->getOriginalProduct()->getId();
             $product = $product->getOriginalProduct();
         }
     }
     if (null != $product) {
         $productExport = $this->productExportRepository->findOneBy(array('product' => $product, 'jobInstance' => $jobInstance));
         $conn = $this->entityManager->getConnection();
         $jobInstance->getId();
         $product->getId();
         if (null === $productExport) {
             $sql = '
                 INSERT INTO pim_delta_product_export
                 (product_id, job_instance_id, date)
                 VALUES (:product_id, :job_instance_id, :date)
             ';
         } else {
             $sql = '
                 UPDATE pim_delta_product_export
                 SET date = :date
                 WHERE product_id = :product_id AND job_instance_id = :job_instance_id
             ';
         }
         $q = $conn->prepare($sql);
         $date = $now->format('Y-m-d H:i:s');
         $productId = $product->getId();
         $jobInstanceId = $jobInstance->getId();
         $q->bindParam(':date', $date, PDO::PARAM_STR);
         $q->bindParam(':product_id', $productId, PDO::PARAM_INT);
         $q->bindParam(':job_instance_id', $jobInstanceId, PDO::PARAM_INT);
         $q->execute();
     }
 }