How to save customer attribute value in custom script in Magento 2

Question

How to save customer attribute value in custom script in Magento 2.

The prerequisite is to add first your new attribute programatically.

To do add a customer attribute please review these:

• Magento2 create a customer custom attribute
• https://github.com/magento/magento2/issues/1238#issuecomment-105034397

Answer 1

This is how it can be done with customer save method:

/** @var \Magento\Customer\Model\CustomerFactory $customerFactory */
/** @var \Magento\Customer\Model\Customer $customer */
/** @var \Magento\Customer\Model\Data\Customer $customerData */

$customer = $customerFactory->create()
$customerData = $customer->getDataModel();
$customerData->setCustomAttribute('my_attr_code', $val);
$customer->updateData($customerData);
$customer->save();

And this is how it can be done updating only one attribute value:

/** @var \Magento\Customer\Model\CustomerFactory $customerFactory */
/** @var \Magento\Customer\Model\Customer $customer */
$customer = $customerFactory->create();
//$customer->setId($customerId); // This seem redundant
/** @var \Magento\Customer\Model\Data\Customer $customerData */
// interface \Magento\Customer\Api\Data\CustomerInterface
$customerData = $customer->getDataModel();
$customerData->setId($customerId);

$customerData->setCustomAttribute('my_custom_attribute', $value);

$customer->updateData($customerData);

/** @var \Magento\Customer\Model\ResourceModel\Customer $customerResource */
/** @var \Magento\Customer\Model\ResourceModel\CustomerFactory $customerResourceFactory */
$customerResource = $customerResourceFactory->create();

if ($value != "") {
    $customerResource->saveAttribute($customer, 'my_custom_attribute');
}

Answer 2

I have a quite nice solution for this :

protected $customerRepository;

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

...

public function updateCustomerAttribute($customerId, $attributeCode, $value) {
    $customerData = $this->customerRepository->getById($customerId);
    $customerData->setCustomAttribute($attributeCode, $value);
    $this->customerRepository->save($customerData);
}