I've discovered how to add a field to the product edit form. Now I need store that additional value. What's the proper protocol? Add a new field to the products table or is there a way to store meta information about a product? I see there's a "data" table that seems to be storing meta information. And which ever way is preferred, are there examples anywhere that show how to define the new value to be stored and/or how to access it from the product object?
We have added new product form hooks to version 4.2.x so it can be handled easily. Unfortunately, this is not yet available, and the 4.1.x way if I describe it, will be broken after upgrade.
Is there any documentation available yet for saving additional product data in preparation for v4.2? We have a 4.2 beta install and would like to be ready when its stable.