With which I can change the method load() if it is deprecated?

Question

public function getShipAddress($customerId){
    $customer = $this->_customerFactory->create()->load($customerId);    //insert customer id

    //shipping
    $shippingAddressId = $customer->getDefaultShipping();
    $shippingAddress = $this->_addressFactory->create()->load($shippingAddressId);

    return $shippingAddress;
}

Answer 1

Please use RepositoryInterface to load instead of model load() function

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

public function getShipCustomer($customerId)
{
    /** @var \Magento\Customer\Api\Data\CustomerInterface $customer */
    $customer = $this->customerRepository->getById($customerId);

    $shippingAddressId = $customer->getDefaultShipping();
    /** @var \Magento\Customer\Api\Data\AddressInterface $shippingAddress */
    $shippingAddress = $this->addressRepository->getById($shippingAddressId);

    return $shippingAddress;
}

Answer 2

• Models are Data Interface are used to only hold the data in objects, i.e to set and get data for a row.
• ResourceModels are a mechanism which is responsible for the persistence of such data, i.e execute the SQL query to actually save or load data into the Model object.

The correct way to load and save should be by creating a repository or loading from a resource as follows:

namespace MyVendor\MyModule\Model;

class QueueRepository
{

    /** @var \MyVendor\MyModule\Model\ResourceModel\Queue  */
    public $resource;

    /** @var \MyVendor\MyModule\Model\QueueFactory  */
    public $modelFactory;

    public function __construct(
        \MyVendor\MyModule\Model\ResourceModel\Queue $resource,
        \MyVendor\MyModule\Model\QueueFactory $modelFactory
    ) {
        $this->resource = $resource;
        $this->modelFactory = $modelFactory;
    }

    /**
     * Save
     * @param \MyVendor\MyModule\Api\Data\QueueInterface $queue
     * @return $queue
     * @throws \Exception
     */
    public function save(\MyVendor\Integrator\Api\Data\QueueInterface $queue)
    {
        $this->resource->save($queue);
        return $queue;
    }

    /**
     * Save
     * @param \MyVendor\MyModule\Api\Data\QueueInterface $queue
     * @param int $id
     * @return $queue
     * @throws \Exception
     */
    public function load(\MyVendor\MyModule\Api\Data\QueueInterface $queue, $id)
    {
        $this->resource->load($queue, $id);
        return $queue;
    }

    public function getById($id)
    {
        $queue = $this->modelFactory->create();
        $this->resource->load($queue, $id);
        return $queue;
    }
}

Here, \MyVendor\MyModule\Api\Data\QueueInterface is implimented by Queue Model.

So, behind the scenes, we are actually creating an Model object then loading it by the ResourceModel object. This is the correct way to load or save.

        $queue = $this->modelFactory->create();
        $this->resource->load($queue, $id);
        return $queue;