Magento 2 get product attribute value without objectManager

Question

I load some related products inside a foreach and want to call some attribute values of these individual products.

My current code below works fine with using $objectManager, but that's not the best way to handle this.

How can I get the value of the product attribute, without using the $objectManager ?

Code Helper/Data:

<?php
namespace MyModule\LinkedProducts\Helper;
class Data extends \Magento\Framework\App\Helper\AbstractHelper
{
 public function __construct(
 \MagePal\LinkProduct\Model\Accessory $accessory,
 \Magento\Catalog\Block\Product\AbstractProduct $abstractProduct
 ) {
 $this->accessory = $accessory;
 $this->abstractProduct = $abstractProduct;
 }
 public function getLinkedProducts()
 {
 $product = $this->abstractProduct->getProduct(); 
 return $this->accessory->getAccessoryProducts($product);
 }
}

Code phtml:

<?php $linkedproducts = $this->helper('MyModule\LinkedProducts\Helper\Data');
$relatedProducts = $linkedproducts->getLinkedProducts();?>
<?php foreach ($relatedProducts as $relatedProduct) {
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$_product = $objectManager->create('Magento\Catalog\Model\Product')->load($relatedProduct->getId());
echo $_product->getData('my_attribute_value');
}?>

Answer 1

You can add one more function in your helper class to load product info and call same function in PHTML.

Updated code will be like as below:

<?php
namespace MyModule\LinkedProducts\Helper;
class Data extends \Magento\Framework\App\Helper\AbstractHelper
{
public function __construct(
 \MagePal\LinkProduct\Model\Accessory $accessory,
 \Magento\Catalog\Block\Product\AbstractProduct $abstractProduct,
 \Magento\Catalog\Model\ProductFactory $productFactory
) {
 $this->accessory = $accessory;
 $this->abstractProduct = $abstractProduct;
 $this->productFactory = $productFactory;
}
public function getLinkedProducts()
{
 $product = $this->abstractProduct->getProduct(); 
 return $this->accessory->getAccessoryProducts($product);
}
public function getProductInfo($productId)
{
 $_product = $this->productFactory->create()->load($productId);
 return $_product;
} 
}

PHTML Code:

<?php 
$linkedproducts = $this->helper('MyModule\LinkedProducts\Helper\Data');
$relatedProducts = $linkedproducts->getLinkedProducts();?>
<?php 
 foreach ($relatedProducts as $relatedProduct) {
 $_product = $linkedproducts->getProductInfo($relatedProduct->getId());
 echo $_product->getData('my_attribute_value');
 }
?>

• JGeer: Thanks a lot for your help. But it seems that something is wrong in the code. I get a blank page when editing the helper data. Are we missing something?
• Pankaj Pareek: By uncomment ini_set('display_errors', 1); from bootstrap.php file .. you can see error instead of blank page
• JGeer: Thanks a lot, was something small as adding a ; after the return $_product. I edit your answer, so that we have the correct code! :)
• JGeer: It seems not working 100% well. The foreach is not working when loading the echo $_product->getData('my_attribute_value');. It only loads the value of the first product and displays that value for all other products as well. What are we missing here?
• Pankaj Pareek: I have updated the code. Can you please check

Answer 2

You can do this by add new function in your helper and call in phtml.

Helper File :

<?php
namespace MyModule\LinkedProducts\Helper;
class Data extends \Magento\Framework\App\Helper\AbstractHelper
{
 private $accessory;
 private $abstractProduct;
 private $productFactory;
 public function __construct(
 \MagePal\LinkProduct\Model\Accessory $accessory,
 \Magento\Catalog\Block\Product\AbstractProduct $abstractProduct,
 \Magento\Catalog\Model\ProductFactory $productFactory
 ) {
 $this->accessory = $accessory;
 $this->abstractProduct = $abstractProduct;
 $this->productFactory = $productFactory;
 }
 public function getLinkedProducts()
 {
 $product = $this->abstractProduct->getProduct(); 
 return $this->accessory->getAccessoryProducts($product);
 }
 public function getAttributeInfo($productId = null)
 {
 if($productId){
 $productObj = $this->productFactory->create()->load($productId);
 return $productObj->getData('my_attribute_value');
 }
 return '';
 }
}

Phtml file :

<?php
$linkedproducts = $this->helper('MyModule\LinkedProducts\Helper\Data');
$relatedProducts = $linkedproducts->getLinkedProducts();
foreach ($relatedProducts as $relatedProduct) {
 echo $linkedproducts->getAttributeInfo($relatedProduct->getId());
}
?>

Remove generated and clean cache.

• rocky9310: how to call this getAttributeInfo function in another php file?