How to update Order data in Magento 2?

Question

I have to update some sales order parameters

$order = $this->orderInterface->loadByIncrementId('000000009');
 $order->setStatus($status)
       ->setState($status)
       ->save();

Here save() is @deprecated and also if try to save, it does not save.

I tried:

/**
*  @var OrderStatusApiInterface
*/
$this->orderRepositoryInterface->save($order);

It changes all the other data also is completely false.

Answer 1

you can use OrderRepositoryInterface to load the order and ResourceModel to save order. I tested follow code and it's works fine at my local Magento.

public function __construct(
    \Magento\Sales\Api\OrderRepositoryInterface $orderRepository,
    \Magento\Sales\Model\ResourceModel\Order $orderResourceModel
) {
    $this->orderResourceModel = $orderResourceModel;
    $this->orderRepository = $orderRepository;
}

public function execute()
{
    $order = $this->orderRepository->get(1);
    $order->setCustomerEmail('[email protected]');
    $this->orderResourceModel->save($order);
}

Answer 2

class Index extends \Magento\Backend\App\Action
{    
  protected $resultJsonFactory;  
  protected $_orderRepository ;

   public function __construct(
     \Magento\Backend\App\Action\Context $context,
     \Magento\Sales\Model\Order $orderRepository,
     \Magento\Framework\Controller\Result\JsonFactory $resultJsonFactory
   ) {
   parent::__construct($context);
   $this->resultJsonFactory = $resultJsonFactory;
   $this->_orderRepository = $orderRepository;
} 

  public function execute()
  {
    $email = $this->getRequest()->getParam('email');
    $orderId = $this->getRequest()->getParam('OrderId');
    $_order = $this->_orderRepository->load($orderId); // it order is not order increment id
    if($_order->getId()){
        $_order->setCustomerEmail($email);
        $_order->save();
         echo "Saved";
    }else{
        echo "Error:Not Saved";
    }
  }

}