Implemented: PHP MetaFieldsRegistry for Level 1 Compatibility
Created MetaFieldsRegistry.php:
- register_order_field() - Register order meta fields
- register_product_field() - Register product meta fields
- Auto-add to allowed/updatable meta lists
- Localize to window.WooNooWMetaFields
- Zero coupling with specific plugins
Features:
- Automatic label formatting from meta key
- Support all field types (text, textarea, number, select, date, checkbox)
- Section grouping
- Description and placeholder support
- Auto-registration to API filters
Initialized in Bootstrap.php:
- Added MetaFieldsRegistry::init()
- Triggers woonoow/register_meta_fields action
- Localizes fields to JavaScript
Updated METABOX_COMPAT.md:
- Added complete plugin integration examples
- Shipment Tracking example
- ACF example
- Custom plugin example
- API response examples
- Field types reference
- Marked as COMPLETE
How Plugins Use It:
1. Store data: update_post_meta (standard WooCommerce)
2. Register fields: MetaFieldsRegistry::register_order_field()
3. Fields auto-exposed in API
4. Fields auto-displayed in WooNooW admin
5. Data saved to WooCommerce database
6. Zero migration needed
Result:
- Level 1 compatibility FULLY IMPLEMENTED
- Plugins work automatically
- Zero addon dependencies in core
- Production ready
All 3 Phases Complete:
Phase 1: Backend API (meta exposure/update)
Phase 2: Frontend components (MetaFields/useMetaFields)
Phase 3: PHP registry system (MetaFieldsRegistry)
Status: READY FOR PRODUCTION
