I want to check if some attribute values have changed after editing a Variant group in Akeneo V. 1.3.
Unfortunately I am a little bit lost: Is there a way to get from a Pim\Bundle\CatalogBundle\Entity\Group to the attribute values? Is there another better way to get these values of a Variant group that was edited?
I cannot even find out in which table the attribute values are stored in MySQL (I've just found pim_catalog_product_value for the product values).
Yes, it's not easy to dig into this part.
The values of a variant group are not stored in the same way than the products values.
These variant group values are only used to be copied in related products and are stored in a product template.
From a product template, you can fetch the values normalized in json with
$group->getProductTemplate()->getValuesData()`.
You can take a look on ProductTemplateApplier and ProductTemplateUpdater to see how we apply variant group values on products (json format is useable almost directly with product updater).
When we edit a variant group, to be able to use the same form than for the product, we use a subscriber TransformProductTemplateValuesSubscriber.
It denormalizes json values to product values objects with
$this->denormalizer->denormalize($data->getValuesData(), 'ProductValue[]', 'json');`
Don't hesitate if you need any further information.
