Product-Language Meta WordPress Function

What it does?

• Adds a product language field
  Introduces a first-class language attribute at product level and exposes it through your site’s API so external systems (headless storefronts, apps, feeds) can read it reliably.

• Backfills existing catalog
  Runs a one-time pass that reads each product’s language from your translation records and writes it into the new field, aligning historical data with the new standard.

• Auto-syncs on save
  Whenever a product is created or edited, the language value is refreshed from the translation plugin’s info, keeping the field accurate even if someone later changes a product’s language.

Why it’s useful?

• API-ready multilingual data
  Downstream tools can filter and segment products by language without touching plugin internals or doing heavy joins—ideal for feeds, mobile apps, and BI pipelines.

• Consistent, future-proof catalog
  Both old and new products carry the same language attribute, preventing gaps and ensuring stable integrations over time.

• Faster querying & simpler logic
  A single, dedicated field makes searches and filters straightforward, reducing complexity and improving performance for listings and exports.

• Better merchandising & analytics
  Target campaigns, recommendations, and reports by language with minimal overhead—useful for regional storefronts and localized promotions.

Notes

• For very large catalogs, trigger the backfill from an admin page or CLI and process in batches to avoid timeouts.

• If the translation plugin isn’t active, skip backfill gracefully and populate values only when language info is available.