Kdjykuj

I am creating a custom product attribute in Magento 2 by custom module InstallData.php code following

    <?php

namespace AwaBrand\Setup;



use MagentoEavSetupEavSetupFactory;

use MagentoFrameworkSetupInstallDataInterface;

use MagentoFrameworkSetupModuleContextInterface;

use MagentoFrameworkSetupModuleDataSetupInterface;



class InstallData implements InstallDataInterface

{

    /**

     * EAV setup factory

     *

     * @var MagentoEavSetupEavSetupFactory

     */

    private $eavSetupFactory;



    /**

     * Constructor

     *

     * @param EavSetupFactory $eavSetupFactory

     */

    public function __construct(

        EavSetupFactory $eavSetupFactory

    ) {

        $this->eavSetupFactory = $eavSetupFactory;

    }



    /**

     * {@inheritdoc}

     */

    public function install(

        ModuleDataSetupInterface $setup,

        ModuleContextInterface $context

    ) {

        $setup->startSetup();



        $eavSetup = $this->eavSetupFactory->create(['setup' => $setup]);





        $eavSetup->addAttribute(

            MagentoCatalogModelProduct::ENTITY,

            'awa_brand',

            [

                'type' => 'int', 

                'backend' => '',

                'frontend' => '',

                'label' => 'Attribute Select',

                'input' => 'select', 

                'class' => '',

                'source' => 'AwaBrandModelConfigSourceOptions',

                'global' => MagentoEavModelEntityAttributeScopedAttributeInterface::SCOPE_STORE,

                'visible' => true,

                'required' => true,

                'user_defined' => false,

                'default' => '',

                'searchable' => false,

                'filterable' => false,

                'comparable' => false,

                'visible_on_front' => false,

                'used_in_product_listing' => true,

                'unique' => false,

                'apply_to' => ''

            ]

        );



        $setup->endSetup();

    }

}

and source Module is bellow

    <?php 

namespace AwaBrandModelConfigSource;



class Options extends MagentoEavModelEntityAttributeSourceAbstractSource

{

    /**

     * to option array

     *

     * @return array

     */

     public function getAllOptions()

    {

        $_objManager = MagentoFrameworkAppObjectManager::getInstance();

        $brandData = $_objManager->create('AwaBrandModelBrand')->getCollection();

        $options = array();

        $options =[

                'value' => '',

                'label' => __('-- Please Select --')

            ];

        foreach($brandData as $_brand){

            $options =  [

                'value' => $_brand->getBrandId(),

                'label' => __($_brand->getTitle())

            ];

        }

        return $options;



    }



    public function toOptionArray()

    {

        $_objManager = MagentoFrameworkAppObjectManager::getInstance();

        $brandData = $_objManager->create('AwaBrandModelBrand')->getCollection();

        $options = array();

        $options =[

                'value' => '',

                'label' => __('-- Please Select --')

            ];

        foreach($brandData as $_brand){

            $options =  [

                'value' => $_brand->getBrandId(),

                'label' => __($_brand->getTitle())

            ];

        }

        return $options;



    }

}

This attribute created successfull

When I try to get product collection by this attribute its not working
and this attribute not showing product collection

MY get product collection code following

<?php

$_product = $block->getProduct();



$objectManager = MagentoFrameworkAppObjectManager::getInstance();

$productCollection = $objectManager->get('MagentoCatalogModelResourceModelProductCollectionFactory');

$collection = $productCollection->create()

->addAttributeToFilter('awa_brand',array('eq' => $_product->getAwaBrand()))

->setPageSize(3);



foreach($collection as $product):

    echo '<pre/>'; print_r($product->getData());exit;

endforeach;

?>

Before addAttributeToFilter Function You Must Select All Attribute Using addAttributeToSelect Function

$collection = $productCollection->create()

->addAttributeToSelect('*')

->addAttributeToFilter('awa_brand',array('eq' => $_product->getAwaBrand()))

->setPageSize(3);

Use of objectmanager directly is not a good practice.

See the below code may help you:

protected $_productloader;



public function __construct(

     MagentoCatalogModelProductFactory $productloader

)

{

     $this->_productloader     = $productloader;

}



// function in which you want to access



function abc()

{

     $productId      = 10;

     $_product       = $this->_productloader->create()->load($productId);

     $awa_brand      = $_product->getData('awa_brand');

}