Magento2 – Cannot Save Product Due to Invalid Option Value

magento-2.1.1magento2product

On a specific product I cannot save any changes at all, I always get the error:

Invalid option value

I believe this is down to the custom options and probably this issue:
https://github.com/magento/magento2/issues/4085

I was on 2.1.0rc3 when the error occurred and have since upgraded to 2.1.1

It's not just that I can't save custom options, I can't save any changes at all even to basic fields such as product name.

Maybe the issue is something else, but I can't find any clues in the logs and the error message is not very helpful.

Best Answer

When you have a product with more than 20 values for a custom options Magento adds pagination to this option. See screenshot attached. Below right, pagination. If you want to save this product you have to go through every page of every custom option of that product.

Technical explantion, Magento is using dynamic rows to load this behaviour, if you don't open the second, or third page, the input fields are not added to the HTML. When you save the product those options aren't in the POST values. In the POST Magento is checking if the values are equal but they aren't, because they are not added to the HTML. So the quick fix for now is to go through every page of every custom option and then you can save the product

Related Solutions

Magento – Programmatically Trigger Admin Save Action on Product

Instead of actually trying to use the save action or simulate the request, I decided to look deeper into what the function does and figure out which piece I needed.

It turns out I needed to run the following on all of the affected products:

    if (Mage::app()->isSingleStoreMode()) {
        $product->setWebsiteIds(array(Mage::app()->getStore(true)->getWebsite()->getId()));
    }

The products must have not been assigned correctly during my batch upload (using dataflow profiles). Here is the full script in case it is useful to anyone:

#!/usr/local/bin/php

<?php

require 'app/Mage.php';
Mage::app();
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

$products = Mage::getResourceModel('catalog/product_collection')->addAttributeToSelect('*');

foreach ($products as $product) {
    if ($product->getModshopVisibility() && !$product->isConfigurable()) {
        echo 'Product: ' . $product->getId() . ' - ' . $product->getName() . "\xA";

        if (Mage::app()->isSingleStoreMode()) {
            $product->setWebsiteIds(array(Mage::app()->getStore(true)->getWebsite()->getId()));
        }

        $product->save();
    }
    else echo 'Skip ' . $product->getId() . "\xA";
}

?>

Magento – Magento 2 how to save product

The problem was completely unrelated, and the code above in the original post works as expected after finding the actual problem I had google experiments api enabled and it was throwing an exception while saving the product.

This fix was enabling developer mode, analysing stack trace and disabling the experimental mode in admin (after confirming by commenting the throw)

Best Answer

Related Solutions

Magento – Programmatically Trigger Admin Save Action on Product

Magento – Magento 2 how to save product

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