Adding custom column to customer_entity - magento2

Question

I am trying to add an custom column to customer_entity, which should be editable in customer form in backend.
I am able to add the column to the database table via an UpdateSchema Script in my Module.
But how can I populate it in the customer form and in the grid?
What I tried so far:
I added an attribute with the same name (=column name) with UpdateDataScript, $customerSetup->addAttribute()...
Customer_grid_flat is updated correctly on saving the user, but the value in the table customer_entity didn't get changed. It is saving its values inside the attribute table (customer_entity_varchar).
How can I set up the custom column correctly, so that its value is saved inside 'customer_entity' and not in 'customer_entity_varchar'?

Answer 1

Solution:
My custom attribute now gets properly saved inside customer_entity table.
UpgradeSchema.php
<?php
namespace Custom\MyModule\Setup;
use Magento\Framework\Setup\UpgradeSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;
class UpgradeSchema implements UpgradeSchemaInterface
{
const CUSTOM_ATTRIBUTE_ID = 'custom_attribute';
/**
* #param SchemaSetupInterface $setup
* #param ModuleContextInterface $context
*/
public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $context)
{
$setup->startSetup();
if (version_compare($context->getVersion(), '0.0.3', '<')) {
$setup->getConnection()->addColumn(
$setup->getTable('customer_entity'),
self::CUSTOM_ATTRIBUTE_ID,
[
'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
'nullable' => true,
'default' => null,
'comment' => 'Custom Attribute'
]
);
}
$setup->endSetup();
}
}
UpgradeData.php
<?php
namespace Custom\MyModule\Setup;
use Magento\Customer\Model\Customer;
use Magento\Customer\Setup\CustomerSetupFactory;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Framework\Indexer\IndexerRegistry;
use Magento\Framework\Setup\UpgradeDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\TestFramework\Helper\Eav;
class UpgradeData implements UpgradeDataInterface
{
/**
* #var CustomerSetupFactory
*/
private $customerSetupFactory;
/**
* #var IndexerRegistry
*/
protected $indexerRegistry;
/**
* #var \Magento\Eav\Model\Config
*/
protected $eavConfig;
/**
* #var \Magento\Eav\Model\Setup
*/
protected $eavSetupFactory;
/**
* #param CustomerSetupFactory $customerSetupFactory
* #param IndexerRegistry $indexerRegistry
* #param \Magento\Eav\Model\Config $eavConfig
*/
public function __construct(
CustomerSetupFactory $customerSetupFactory,
IndexerRegistry $indexerRegistry,
\Magento\Eav\Model\Config $eavConfig,
EavSetupFactory $eavSetupFactory
)
{
$this->customerSetupFactory = $customerSetupFactory;
$this->indexerRegistry = $indexerRegistry;
$this->eavConfig = $eavConfig;
$this->eavSetupFactory = $eavSetupFactory;
}
/**
* Upgrades data for a module
*
* #param ModuleDataSetupInterface $setup
* #param ModuleContextInterface $context
* #return void
*/
public function upgrade(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
{
$dbVersion = $context->getVersion();
if (version_compare($dbVersion, '0.0.3', '<')) {
$customerSetup = $this->customerSetupFactory->create(['setup' => $setup]);
$customerSetup->addAttribute(
'customer',
UpgradeSchema::CUSTOM_ATTRIBUTE_CODE,
[
'label' => 'Custom Attribute',
'required' => 0,
'visible' => 1, //<-- important, to display the attribute in customer edit
'input' => 'text',
'type' => 'static',
'system' => 0, // <-- important, to have the value be saved
'position' => 40,
'sort_order' => 40
]
);
/** #var EavSetupFactory $eavSetup */
$eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);
$typeId = $eavSetup->getEntityTypeId('customer');
$attribute = $eavSetup->getAttribute($typeId, UpgradeSchema::CUSTOM_ATTRIBUTE_ID);
$customerSetup->getSetup()->getConnection()->insertMultiple(
$customerSetup->getSetup()->getTable('customer_form_attribute'),
array('form_code' => 'adminhtml_customer', 'attribute_id' => $attribute['attribute_id'])
);
$setup->endSetup();
}
}
}