Implemented context-aware back button that respects user's navigation path:
Pattern:
```typescript
const handleBack = () => {
if (window.history.state?.idx > 0) {
navigate(-1); // Go back in history
} else {
navigate('/fallback'); // Safe fallback
}
};
```
Updated Pages:
✅ Orders/Detail.tsx → Fallback: /orders
✅ Orders/Edit.tsx → Fallback: /orders/:id
✅ Customers/Detail.tsx → Fallback: /customers
✅ Customers/Edit.tsx → Fallback: /customers
✅ Products/Edit.tsx → Fallback: /products
✅ Coupons/Edit.tsx → Fallback: /coupons
User Flow Examples:
1. Normal Navigation (History Available):
Customers Index → Customer Detail → Orders Tab → Order Detail
→ Click Back → Returns to Customer Detail ✅
2. Direct Access (No History):
User opens /orders/360 directly
→ Click Back → Goes to /orders (fallback) ✅
3. New Tab (No History):
User opens order in new tab
→ Click Back → Goes to /orders (fallback) ✅
4. Page Refresh (History Cleared):
User refreshes page
→ Click Back → Goes to fallback ✅
Benefits:
✅ Respects user's navigation path when possible
✅ Never breaks or leaves the app
✅ Predictable behavior in all scenarios
✅ Professional UX (like Gmail, Shopify, etc.)
✅ Works with deep links and bookmarks
Technical:
- Uses window.history.state.idx to detect history
- Falls back to safe default when no history
- Consistent pattern across all pages
- No URL parameters needed
Result: Back button now works intelligently based on context!
Critical bug: Hook called after conditional return
Problem:
- useEffect at line 107 was AFTER early returns (lines 83-102)
- When loading/error states triggered early return
- Hook order changed between renders
- React detected hook order violation
- Component broke with blank screen
Rules of Hooks violation:
❌ Before:
1. All hooks (useState, useQuery, etc.)
2. Early return if loading
3. Early return if error
4. useEffect (line 107) ← WRONG! After conditional returns
✅ After:
1. All hooks including ALL useEffects
2. Early return if loading
3. Early return if error
4. Render
Fix:
- Moved useEffect from line 107 to line 62
- Now before any early returns
- Changed product?.meta to productQ.data?.meta
- Hooks always called in same order
- No conditional hook calls
Result:
✅ Product edit form loads correctly
✅ No React warnings
✅ Follows Rules of Hooks
✅ Consistent hook order every render
Implemented: Frontend Components for Level 1 Compatibility
Created Components:
- MetaFields.tsx - Generic meta field renderer
- useMetaFields.ts - Hook for field registry
Integrated Into:
- Orders/Edit.tsx - Meta fields after OrderForm
- Products/Edit.tsx - Meta fields after ProductForm
Features:
- Supports: text, textarea, number, date, select, checkbox
- Groups fields by section
- Zero coupling with specific plugins
- Renders any registered fields dynamically
- Read-only mode support
How It Works:
1. Backend exposes meta via API (Phase 1)
2. PHP registers fields via MetaFieldsRegistry (Phase 3 - next)
3. Fields localized to window.WooNooWMetaFields
4. useMetaFields hook reads registry
5. MetaFields component renders fields
6. User edits fields
7. Form submission includes meta
8. Backend saves via update_order_meta_data()
Result:
- Generic, reusable components
- Zero plugin-specific code
- Works with any registered fields
- Clean separation of concerns
Next: Phase 3 - PHP MetaFieldsRegistry system
