Hello!

I'm currently using xmlrpc nodejs library to communicate externally with my odoo DB. 

While retrieving products, I see we only retrieve the direct category (categ_id). I'd like to know if somehow it's possible to retrieve the categories tree with the product at the same time we retrieve the products. Meaning the product category and its all parents. I'd gain in performance.

Maybe I've to create a calculated field but I'm quite new on there so I don't really know how to perform that. Any help will be so appreciated! 

Thanks ;)