Magento 2 - All products attributes updated after update from collection

Question

I have got collection in $collecction from Magento\Catalog\Model\ResourceModel\Product\CollectionFactory with some certain conditions

I am updating a custom attribute viewed_count in foreach loop like this:

foreach($collection as $k=>$_product){
    echo $_product->getSku()." ";
    $viewCount = $this->getViewedCount($_product->getId());
    $_product->getResource()->saveAttribute($_product, "viewed_count");
    $_product->setViewedCount($viewCount);
    $_product->save();
}

After this it is successfully updating product viewed count in viewed_count attribute.

But the issue is: After this code is executed, all other attributes got updated and set to some default values. Can anyone tell me what am I doing wrong?

Answer 1

Reference Link

updateAttributes of class \Magento\Catalog\Model\ResourceModel\Product\Action. Method can update multiple products and attribute values, but if you want to update just one product with one attribute value you can do it like this:

$this->action->updateAttributes([$product->getId()], ['attribute_code' => $newValue], $storeId);