Magetno 2 : Custom Attribute is not working - magento

Question

I have created custom attribute programmatically. it is not showing in product section in admin panel.I used following commands after create InstallData.php & Options.php files :
php bin/magento setup:upgrade
php bin/magento cache:clean
After it i am not able to find custom attribute on product section in admin.
Code is
1 Create InstallData.php
namespace Matrixsoftware\Matrix\Setup;
use Magento\Eav\Setup\EavSetup;
use Magento\Eav\Setup\EavSetupFactory /* For Attribute create */;
use Magento\Framework\Setup\InstallDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
class InstallData implements InstallDataInterface
{
private $eavSetupFactory;
public function __construct(EavSetupFactory $eavSetupFactory)
{
$this->eavSetupFactory = $eavSetupFactory;
}
public function install(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
{
$setup->startSetup();
/** #var EavSetup $eavSetup */
$eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);
$eavSetup->addAttribute(
\Magento\Catalog\Model\Product::ENTITY,
'thickness',/* Custom Attribute Code */
[
'group' => 'Product Details',/* Group name in which you want
to display your custom attribute */
'type' => 'int',/* Data type in which formate your value save in database*/
'backend' => '',
'frontend' => '',
'label' => 'Choose Thickness', /* lablel of your attribute*/
'input' => 'select',
'class' => '',
'source' => 'Matrixsoftware\Matrix\Model\Config\Source\Options',
/* Source of your select type custom attribute options*/
'global' => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_GLOBAL,
/*Scope of your attribute */
'visible' => true,
'required' => true,
'user_defined' => false,
'default' => '',
'searchable' => false,
'filterable' => true,
'comparable' => false,
'visible_on_front' => true,
'used_in_product_listing' => true,
'unique' => false
]
);
$setup->endSetup();
}
}
2.Create Options.php
namespace Matrixsoftware\Matrix\Model\Config\Source;
use Magento\Eav\Model\ResourceModel\Entity\Attribute\OptionFactory;
use Magento\Framework\DB\Ddl\Table;
class Options extends \Magento\Eav\Model\Entity\Attribute\Source\AbstractSource
{
protected $optionFactory;
/*public function __construct(OptionFactory $optionFactory)
{
$this->optionFactory = $optionFactory;
//you can use this if you want to prepare options dynamically
}*/
public function getAllOptions()
{
/* your Attribute options list*/
$this->_options=[ ['label'=>'Select Options', 'value'=>''],
['label'=>'Option1', 'value'=>'1']
['label'=>'Option2', 'value'=>'2']
['label'=>'Option3', 'value'=>'3']
];
return $this->_options;
}
public function getOptionText($value)
{
foreach ($this->getAllOptions() as $option) {
if ($option['value'] == $value) {
return $option['label'];
}
}
return false;
}
public function getFlatColumns()
{
$attributeCode = $this->getAttribute()->getAttributeCode();
return [
$attributeCode => [
'unsigned' => false,
'default' => null,
'extra' => null,
'type' => Table::TYPE_INTEGER,
'nullable' => true,
'comment' => 'Custom Attribute Options ' . $attributeCode . ' column',
],
];
}
}

Answer 1

You use this as well, as I used to create custom product attributes programatically.
app/code/[Vendor]/[Module]/Setup/InstallData.php
namespace [Vendor]\[Module]\Setup;
use Magento\Eav\Setup\EavSetup;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Framework\DB\Ddl\Table;
use Magento\Framework\Setup\InstallDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Sales\Setup\SalesSetupFactory;
use Magento\Quote\Setup\QuoteSetupFactory;
class InstallData implements InstallDataInterface
{
private $eavSetupFactory;
private $quoteSetupFactory;
private $salesSetupFactory;
/**
* InstallData constructor.
* #param EavSetupFactory $eavSetupFactory
* #param QuoteSetupFactory $quoteSetupFactory
*/
public function __construct(
EavSetupFactory $eavSetupFactory,
QuoteSetupFactory $quoteSetupFactory,
SalesSetupFactory $salesSetupFactory
)
{
$this->eavSetupFactory = $eavSetupFactory;
$this->quoteSetupFactory = $quoteSetupFactory;
$this->salesSetupFactory = $salesSetupFactory;
}
public function install(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
{
$eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);
$quoteSetup = $this->quoteSetupFactory->create(['setup' => $setup]);
$salesSetup = $this->salesSetupFactory->create(['setup' => $setup]);
/**
* Add attributes to the eav/attribute
*/
$eavSetup->addAttribute(
\Magento\Catalog\Model\Product::ENTITY,
'dropdown_attribute',
[
'type' => 'int',
'label' => 'Dropdown Attribute',
'input' => 'select',
'global' => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_GLOBAL,
'visible' => true,
'required' => false,
'user_defined' => true,
'default' => '',
'searchable' => false,
'filterable' => false,
'comparable' => false,
'visible_on_front' => false,
'used_in_product_listing' => false,
'unique' => false,
'option' => [
'values' => [
'Option 1',
'Option 2',
'Option 3'
],
]
]
);
$attributeSetId = $eavSetup->getDefaultAttributeSetId('catalog_product');
$eavSetup->addAttributeToSet(
'catalog_product',
$attributeSetId,
'General',
'dropdown_attribute'
);
$attributeOptions = [
'type' => Table::TYPE_TEXT,
'visible' => true,
'required' => false
];
}
}