Tag rules: Tag A + Tab B = Tag C

[stephanegigandet]

What

Following a discussion on how we can apply finer categories to products (e.g. Yogurts with fruits, Artificially sweetened yogurts instead of just Yogurts) massively to products, we have discussed introducing a new feature to automatically apply some categories when products have specific tags.

For instance, we could have rules like:

+categories:en:yogurts +ingredients:en:sweetener = +categories:en:artificially-sweetened-yogurts

+categories:en:yogurts +ingredients:en:sugar -ingredients:en:sweetener = +categories:en:sugared-yogurts (yogurts with sugar in the ingredients but without sweeteners)

We could create a testing tool to display which products would be affected by a rule we want to test.
And we could then automatically apply validated rules, either in real-time, or periodically (which would have the advantage of cleanly attributing new tags to the tag rules instead of to users).

Part of

• 🎯 What can I work on ? #5529

[bernardlemoullec]

Good idea! Thank you Stéphane

[teolemon]

+categories:fr:Sancerre = origins_of_ingredients:en:France + labels:fr:aoc
+packager-codes:msc-* = labels:en:msc
+brands:fr:carrefour = +stores:fr:carrefour
+brands:fr:sefi'BIO = +labels:en:organic

[teolemon]

• Closely related to our initial discussion, I since added a detailed proposal for a self-service version of this (the core value is rules-based on regex on the OCR, but the rules will work with tags, and combinations of both).
  • Create a Collaborative Regex Engine robotoff#226
• Also, this tag mechanism (even without implementing the full Collaborative Regex Engine) can be implemented here or on Robotoff. It’s also related to an idea we had on Robotoff a bit earlier: “Secondary insights”. The value-added of doing it on Robotoff is that we have the insight mechanism as a protection system, and that should allow us to move faster and bolder without breaking things.
  • Generate and apply insights automatically based on constraints robotoff#163
• Finally, we have already support in the taxonomy for this, with (for instance) many categories like PGI already mandating an origin 🎉
  • hr:Paška sol
    protected_name_type:en: pdo
    origins:en: en:Croatia

[github-actions]

This issue has been open 90 days with no activity. Can you give it a little love by linking it to a parent issue, adding relevant labels and projets, creating a mockup if applicable, adding code pointers from https://github.com/openfoodfacts/openfoodfacts-server/blob/main/.github/labeler.yml, giving it a priority, editing the original issue to have a more comprehensive description… Thank you very much for your contribution to 🍊 Open Food Facts

[teolemon]

• Associated Pull Request with a proposal by @stephanegigandet : feat: Start of product rules: simple rule format #6188