Update Customer Data in Magento2 with custom attribute

Question

I want to update the firstname of a customer like this :

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$customerFactory = $objectManager->create('\Magento\Customer\Model\CustomerFactory');


$customer = $objectManager->create('Magento\Customer\Model\Customer')->setWebsiteId(1)->loadByEmail('[email protected]');

try {
    if(!empty($customer->getData('email')))
    {
        $customer->setFirstname('JokeAccount');
        $customer->save();
    } 
}

But the name of the customer doesn't change

Answer 1

I'm not entirely sure what's wrong with your code but here's how I did it a few weeks ago using service contracts. Also please try to avoid using the ObjectManager directly

protected $_customerRepoInterface;

public function __construct(
    \Magento\Customer\Api\CustomerRepositoryInterface $customerRepoInterface
) {
    $this->_customerRepoInterface = $customerRepoInterface;
}

Then in your code you can do:

// Second parameter is the website id
$customer = $this->_customerRepoInterface->get('[email protected]', 1);
// Update
$customer->setFirstname('JokeAccount');
$this->_customerRepoInterface->save($customer);

Answer 2

create a controller

   protected $_customerRepositoryInterface;

   public function __construct(
    \Magento\Framework\App\Action\Context $context,
    \Magento\Framework\View\Result\PageFactory $resultPageFactory,
    \Magento\Customer\Api\CustomerRepositoryInterface $customerRepositoryInterface
  ) {
    parent::__construct($context);
    $this->resultPageFactory = $resultPageFactory;
    $this->_customerRepositoryInterface = customerRepositoryInterface;
  }

Now execute function here reward_barcode is custom attribute:

 public function execute()
  {
     $customerId = 2;
     if ($customerId) {

            $customer = $this->_customerRepositoryInterface->getById($customerId);
            $customer->setCustomAttribute('reward_barcode', $barcode);
            $this->_customerRepositoryInterface->save($customer);

   }
   $this->messageManager->addSuccess( __('Your membership successfully updated.') );
}