Magento 2 | Adding values to the multiple select attribute of the product

Question

I have created a product attribute in Magento2 which is of type multiple select. Right now it is empty for all products and has no options created. With my php code I am trying to add a random value to each product via foreach code. This is the code:

foreach($simple_collection as $simple_product){
 
 $randomNumber = rand($minValue, $maxValue);
 $simple_product->setdiscountprice($randomNumber);
 $productResource->saveAttribute($simple_product, 'discountprice');
 
 echo 'discountprice aggiornato per: '.$simple_product->getSku().'<br/>';
 
 }

Why is it not working and not adding any kind of value to the multiple select attribute of the product?

Answer 1

If this is a multiple select attribute, you have to insert option code instead of the value itself.

To get a option id from label, you can use the following code to refer:

public function getAttributeLabel($attr, $value){
 $attribute = $this->config->getAttribute(ProductModel::ENTITY, $attr);
 return $attribute->getSource()->getOptionText($value);
}

Where $this->config is from Magento\Eav\Model\Config. You can use dependency injection to inject into your custom class.

More Ref: https://webkul.com/blog/get-option-label-from-option-id-and-attribute-code-magento-2/

• Sanjay Jethva: check this once may it helps magento.stackexchange.com/questions/323549/…