Issue
I am trying to retrieve the list of dropdown attributes and check if the value exists (if it does i need to get the value and assign it to the product) and if it doesnt i will have to create it and get its value to assign it to the product.
$attribute = $this->objectManager->create('Magento\Eav\Model\Entity\Attribute');
$attributeId = $attribute->getIdByCode('catalog_product','manufacturer');
$model = $this->objectManager->create('Magento\Catalog\Model\ResourceModel\Eav\Attribute');
$model->load($attributeId);
print_r($model->getFrontendLabel());
Solution
Following Magento 2 guidelines, you should not use ObjectManager by yourself. Instead, you must use dependency injection. More info here
In your Block/Controller/Helper..., create a constructor and inject \Magento\Catalog\Api\ProductAttributeRepositoryInterface
class. For example :
private \Magento\Catalog\Api\ProductAttributeRepositoryInterface $productAttributeRepository;
public function __construct(
\Magento\Catalog\Api\ProductAttributeRepositoryInterface $productAttributeRepository
) {
$this->productAttributeRepository = $productAttributeRepository;
}
Then, in your dedicated method, you want to call (PHPDoc added for clarity) :
/** @var \Magento\Eav\Api\Data\AttributeOptionInterface[] $manufacturerOptions */
$manufacturerOptions = $this->productAttributeRepository->get('manufacturer')->getOptions();
You can now get options values and labels this way :
foreach ($manufacturerOptions as $manufacturerOption) {
$manufacturerOption->getValue(); // Value
$manufacturerOption->getLabel(); // Label
}
Answered By - Yonn Trimoreau Answer Checked By - Willingham (PHPFixing Volunteer)
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