Magento2 Custom attribute is not saving during customer registration from frontend - magento

Question

I am trying to add the custom attribute to registration form. And i have added the attribute successfully by the following code
class InstallData implements InstallDataInterface
{
/**
* #var EavSetupFactory Magento\Eav\Setup\EavSetupFactory
*/
private $eavSetupFactory;
/**
* #var $_eavConfig Config
*/
protected $eavConfig;
public function __construct(EavSetupFactory $eavSetupFactory, Config $eavConfig)
{
$this->eavSetupFactory = $eavSetupFactory;
$this->eavConfig = $eavConfig;
}
public function install(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
{
$eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);
$eavSetup->addAttribute(
\Magento\Customer\Model\Customer::ENTITY,
'mobile',
[
'type' => 'varchar',
'label' => 'Mobile',
'input' => 'text',
'required' => false,
'system' => false,
'position' => 100,
'visible' => true,
'user_defined' => true
]
);
$mobile = $this->eavConfig->getAttribute(\Magento\Customer\Model\Customer::ENTITY, 'mobile');
//$forms = ['adminhtml_customer', 'checkout_register', 'customer_account_create', 'customer_account_edit'];
$forms = ['adminhtml_customer'];
$mobile->setData(
'used_in_forms',
$forms
);
$mobile->save();
}
}
And to show at front-end i am using the layout handler customer_account_create with the following code
<referenceContainer name="form.additional.info">
<block class="Namespace\SMS\Block\Active" name="sms_block">
<action method="setTemplate" ifconfig="sms/actions/register" ifvalue="1">
<argument name="template" xsi:type="string">Namespace_SMS::sms/register.phtml</argument>
</action>
</block>
</referenceContainer>
Now it is showing the mobile field during registration. But when i try to create account mobile field value is empty after create account.
Note: I know if i add the 'customer_account_create', 'customer_account_edit' with used_in_form then mobile value save. But after this i can not use a specific template file to render mobile field.
Can you please let me know how can i solve this issue? Thank you very much.

Answer 1

I do not know whether it is 100% correct according to the coding rules. But I have resolved this issue using the observer and little bit changes in InstallData script.
InstallData.php is like this
class InstallData implements InstallDataInterface
{
/**
* Customer setup factory
*
* #var \Magento\Customer\Setup\CustomerSetupFactory
*/
private $customerSetupFactory;
/**
* Init
*
* #param \Magento\Customer\Setup\CustomerSetupFactory $customerSetupFactory
*/
public function __construct(\Magento\Customer\Setup\CustomerSetupFactory $customerSetupFactory) {
$this->customerSetupFactory = $customerSetupFactory;
}
public function install(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
{
$setup->startSetup();
/** #var CustomerSetup $customerSetup */
$customerSetup = $this->customerSetupFactory->create(['setup' => $setup]);
$customerSetup->addAttribute(
\Magento\Customer\Model\Customer::ENTITY,
'mobile',
[
'type' => 'varchar',
'label' => 'Mobile',
'input' => 'text',
'required' => false,
'system' => false,
'position' => 100,
'visible' => true,
'user_defined' => true
]
);
$customerSetup->updateAttribute('customer', 'mobile', 'is_used_for_customer_segment', '1');
//$forms = ['adminhtml_customer', 'checkout_register', 'customer_account_create', 'customer_account_edit'];
$forms = ['adminhtml_customer'];
$attribute = $customerSetup->getEavConfig()->getAttribute('customer', 'mobile');
$attribute->setData('used_in_forms', ['adminhtml_customer']);
$attribute->addData([
'attribute_set_id' => 1,
'attribute_group_id' => 1
]);
$attribute->save();
$setup->endSetup();
}
}
then events.xml is like this
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
<event name="customer_register_success">
<observer name="sMSHandleCustomerSaveAfter" instance="\Namepace\SMS\Observer\CustomerRegisterObserver" />
</event>
</config>
And the observer is like this
class CustomerRegisterObserver implements ObserverInterface
{
/**
* #var \Magento\Customer\Model\CustomerFactory
*/
protected $_customerFactory;
function __construct(CustomerFactory $customerFactory)
{
$this->_customerFactory = $customerFactory;
}
public function execute(Observer $observer)
{
$customerData = $observer->getCustomer();
if($_POST['mobile']) {
$customer = $this->_customerFactory->create()->load($customerData->getId());
$customer->setData('mobile', $_POST['mobile']);
$customer->save();
}
}
}

Answer 2

IF someone is looking for the solution, nearly to the #Abbas answer, but modified in observer part:
<?php
namespace {Vendor}\Module\Observer;
use Magento\Framework\Event\Observer as EventObserver;
use Magento\Framework\Event\ObserverInterface;
class CustomerRegisterObserver implements ObserverInterface
{
/**
* #var \Magento\Customer\Model\CustomerFactory
*/
protected $_customerFactory;
protected $_customerRepository;
function __construct(
\Magento\Customer\Model\CustomerFactory $customerFactory,
\Psr\Log\LoggerInterface $logger
) {
$this->_customerFactory = $customerFactory;
$this->_logger = $logger;
}
public function execute(EventObserver $observer)
{
//$this->_logger->info("Observer CustomerRegisterObserver Loaded !");
$event = $observer->getEvent();
$customerData = $event->getCustomer();
if($_POST['mobile']) {
$customer = $this->_customerFactory->create()->load($customerData->getId());
$customer->setData('mobile', $_POST['mobile']);
$customer->save();
}
}
}