190 lines
7.1 KiB
Markdown
190 lines
7.1 KiB
Markdown
# Cut Feature Implementation Summary
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## Overview
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Successfully implemented the Cut feature for the map application, allowing admins to create polygon overlays and users to view them on the public map. **Updated:** Fixed Content Security Policy violations by removing all inline event handlers and implementing proper event delegation.
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## Database Changes
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### New Table: `cuts`
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Added cuts table creation to `build-nocodb.sh` with the following columns:
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- `id` (Primary Key)
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- `name` (Required)
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- `description` (Optional)
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- `color` (Default: #3388ff)
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- `opacity` (Default: 0.3)
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- `category` (Custom, Ward, Neighborhood, District)
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- `is_public` (Boolean - visible on public map)
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- `is_official` (Boolean - marked as official)
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- `geojson` (Required - polygon data)
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- `bounds` (Calculated bounds for map fitting)
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- `created_by`, `created_at`, `updated_at` (Audit fields)
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## Backend Implementation
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### API Endpoints
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- `GET /api/cuts` - Get all cuts (filtered by permissions)
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- `GET /api/cuts/public` - Get public cuts for map display
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- `GET /api/cuts/:id` - Get single cut
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- `POST /api/cuts` - Create cut (admin only)
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- `PUT /api/cuts/:id` - Update cut (admin only)
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- `DELETE /api/cuts/:id` - Delete cut (admin only)
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### Files Created/Modified
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- ✅ `app/controllers/cutsController.js` - CRUD operations
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- ✅ `app/routes/cuts.js` - API routes with auth middleware
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- ✅ `app/routes/index.js` - Added cuts routes
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- ✅ `app/config/index.js` - Added cuts table ID configuration
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- ✅ `build-nocodb.sh` - Added cuts table creation
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## Frontend Implementation
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### Public Map Features
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- ✅ Cut selector dropdown in map controls
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- ✅ Collapsible legend showing current cut info
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- ✅ Single cut display with proper styling
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- ✅ Color and opacity from cut properties
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### Admin Features
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- ✅ Interactive polygon drawing with click-to-add-points
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- ✅ Drawing toolbar with finish, undo, clear, cancel buttons
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- ✅ Cut properties form with color picker and opacity slider
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- ✅ Cut management list with search and filtering
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- ✅ Edit, duplicate, delete functionality
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- ✅ Import/export cuts as JSON
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- ✅ Map preview during editing
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### Files Created/Modified
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- ✅ `app/public/js/cut-drawing.js` - Polygon drawing functionality
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- ✅ `app/public/js/cut-manager.js` - Cut CRUD and display logic
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- ✅ `app/public/js/cut-controls.js` - Public map cut controls
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- ✅ `app/public/js/admin-cuts.js` - Admin cut management
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- ✅ `app/public/css/modules/cuts.css` - Cut-specific styling
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- ✅ `app/public/css/style.css` - Added cuts CSS import
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- ✅ `app/public/index.html` - Added cut controls and legend
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- ✅ `app/public/admin.html` - Added cuts admin section
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- ✅ `app/public/js/main.js` - Initialize cut manager and controls
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- ✅ `app/public/js/map-manager.js` - Added getMap() export
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## Key Features Implemented
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### Drawing System
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- Click-to-add-points polygon creation
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- Visual vertex markers with hover effects
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- Dynamic polyline connecting vertices
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- Minimum 3 points validation
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- Undo last point and clear all functionality
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- Cancel drawing at any time
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### Cut Properties
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- Name (required)
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- Description (optional)
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- Color picker with hex display
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- Opacity slider with percentage display
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- Category selection (Custom, Ward, Neighborhood, District)
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- Public visibility toggle
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- Official cut designation
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### Management Features
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- List all cuts with badges (Public/Private, Official)
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- Search cuts by name/description
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- Filter by category
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- View cut on map with bounds fitting
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- Edit existing cuts (populate form from data)
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- Duplicate cuts (creates copy with modified name)
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- Delete with confirmation
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- Export all cuts as JSON
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- Import cuts from JSON file with validation
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### Public Display
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- Dropdown selector with "No overlay" option
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- Grouped by category in selector
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- Single cut display (replace previous when selecting new)
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- Legend showing cut name, color, description
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- Collapsible legend with expand/collapse toggle
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- Proper styling with cut's color and opacity
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## Integration Points
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### Authentication & Authorization
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- Uses existing auth middleware
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- Admin-only creation/editing/deletion
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- Public API for map display
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- Respects temp user permissions
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### Existing Systems
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- Integrates with NocoDB service layer
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- Uses existing notification system
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- Follows established UI patterns
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- Works with existing map controls
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## Testing Recommendations
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1. **Database Setup**
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- Run updated `build-nocodb.sh` to create cuts table
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- Verify table creation and column types
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2. **API Testing**
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- Test all CRUD operations
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- Verify permission restrictions
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- Test public vs admin endpoints
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3. **Drawing Functionality**
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- Test polygon creation with various point counts
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- Test undo/clear/cancel operations
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- Verify minimum 3 points validation
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4. **Cut Management**
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- Test create, edit, duplicate, delete operations
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- Test search and filtering
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- Test import/export functionality
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5. **Map Display**
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- Test cut selection and display
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- Verify legend updates
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- Test bounds fitting
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## Future Enhancements
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1. **Multiple Cut Display** - Show multiple cuts simultaneously
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2. **Cut Statistics** - Calculate area, perimeter
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3. **Location Filtering** - Filter locations by selected cut
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4. **Cut Sharing** - Share cuts via URL
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5. **Advanced Editing** - Edit polygon vertices after creation
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6. **Cut Templates** - Pre-defined shapes for quick creation
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## Recent Updates - Content Security Policy Compliance
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### CSP Violations Fixed (Latest Update)
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- **Problem**: Inline event handlers (`onclick`, `onchange`) were violating Content Security Policy
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- **Solution**: Replaced all inline handlers with proper event delegation
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- **Files Updated**:
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- `cut-controls.js` - Completely refactored `populateCutSelector()` function
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- `index.html` - Removed inline handlers from mobile overlay modal
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- `map-controls.css` - Enhanced dropdown styles and removed auto-show behavior
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### Implementation Details
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1. **Cut Selector Dropdown**: Now uses event delegation with `data-action` attributes
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2. **Mobile Overlay Modal**: Converted to event delegation for all button clicks
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3. **Legend Controls**: Updated to use proper event listeners instead of inline handlers
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4. **Enhanced User Experience**:
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- Dropdown only shows when clicked (removed auto-focus behavior)
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- Better mobile responsiveness
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- Consistent checkbox-style interface across desktop and mobile
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- Proper pointer event handling for smooth interactions
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### Technical Improvements
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- **Event Delegation**: All click handlers now use `addEventListener` with event delegation
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- **Data Attributes**: Using `data-action` and `data-cut-id` for clean event handling
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- **DOM Manipulation**: Creating elements programmatically instead of innerHTML with inline handlers
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- **CSP Compliance**: Zero inline event handlers remaining in the codebase
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## Installation Steps
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1. Update database: Run `./build-nocodb.sh` to create cuts table
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2. Set environment variable: Add `NOCODB_CUTS_SHEET` if using custom table ID
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3. Restart application to load new API routes
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4. Access admin panel and navigate to "Map Cuts" section
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5. Create test cuts and verify public map display
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The Cut feature is now fully implemented, CSP-compliant, and ready for testing!
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