Added page layouts
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Francisco Gaona
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PAGE_LAYOUTS_IMPLEMENTATION_SUMMARY.md
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PAGE_LAYOUTS_IMPLEMENTATION_SUMMARY.md
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# Page Layouts Implementation Summary
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## ✅ Completed Components
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### Backend (100%)
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1. **Database Schema** ✓
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- Migration file: `backend/migrations/tenant/20250126000008_create_page_layouts.js`
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- Table: `page_layouts` with JSONB layout configuration storage
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2. **API Layer** ✓
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- Service: `backend/src/page-layout/page-layout.service.ts`
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- Controller: `backend/src/page-layout/page-layout.controller.ts`
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- DTOs: `backend/src/page-layout/dto/page-layout.dto.ts`
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- Module: `backend/src/page-layout/page-layout.module.ts`
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- Registered in: `backend/src/app.module.ts`
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### Frontend (100%)
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1. **Core Components** ✓
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- **PageLayoutEditor.vue** - Drag-and-drop layout editor with 6-column grid
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- **PageLayoutRenderer.vue** - Renders fields based on saved layouts
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- **DetailViewEnhanced.vue** - Detail view with page layout support
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- **EditViewEnhanced.vue** - Edit view with page layout support
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2. **Types & Interfaces** ✓
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- `frontend/types/page-layout.ts` - TypeScript definitions
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3. **Composables** ✓
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- `frontend/composables/usePageLayouts.ts` - API interaction layer
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4. **Page Integration** ✓
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- Updated: `frontend/pages/setup/objects/[apiName].vue` with tabs
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- Tab 1: Fields list
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- Tab 2: Page layouts management and editor
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### Dependencies ✓
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- GridStack.js installed in frontend
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- All required UI components available (Tabs, Button, Card, etc.)
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## 🎯 Key Features Implemented
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### Layout Editor
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- [x] 6-column grid system
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- [x] Drag fields from sidebar to grid
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- [x] Reposition fields via drag-and-drop
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- [x] Resize fields horizontally (1-6 columns)
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- [x] Default 3-column width per field
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- [x] Uniform height (80px)
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- [x] Remove fields from layout
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- [x] Clear all functionality
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- [x] Save layout state
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### Layout Renderer
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- [x] Grid-based field rendering
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- [x] Respects saved positions and sizes
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- [x] All field types supported
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- [x] Readonly mode (detail view)
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- [x] Edit mode (form view)
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- [x] Fallback to 2-column layout
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### Layout Management
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- [x] Create multiple layouts per object
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- [x] Set default layout
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- [x] Edit existing layouts
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- [x] Delete layouts
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- [x] List all layouts for object
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### Integration
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- [x] Setup page with tabs
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- [x] Enhanced detail/edit views
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- [x] Automatic default layout loading
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- [x] Backward compatibility maintained
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## 📦 File Structure
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```
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backend/
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├── migrations/tenant/
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│ └── 20250126000008_create_page_layouts.js
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└── src/
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└── page-layout/
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├── dto/
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│ └── page-layout.dto.ts
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├── page-layout.controller.ts
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├── page-layout.service.ts
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└── page-layout.module.ts
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frontend/
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├── components/
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│ ├── PageLayoutEditor.vue
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│ ├── PageLayoutRenderer.vue
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│ └── views/
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│ ├── DetailViewEnhanced.vue
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│ └── EditViewEnhanced.vue
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├── composables/
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│ └── usePageLayouts.ts
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├── pages/
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│ └── setup/
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│ └── objects/
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│ └── [apiName].vue (updated)
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└── types/
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└── page-layout.ts
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Documentation/
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├── PAGE_LAYOUTS_GUIDE.md
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├── PAGE_LAYOUTS_IMPLEMENTATION_SUMMARY.md
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└── setup-page-layouts.sh
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```
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## 🚀 Quick Start
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### 1. Run Setup Script
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```bash
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./setup-page-layouts.sh
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```
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### 2. Manual Setup (Alternative)
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```bash
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# Backend migration
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cd backend
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npm run migrate:tenant
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# Frontend dependencies (already installed)
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cd frontend
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npm install gridstack
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```
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### 3. Start Services
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```bash
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# Terminal 1: Backend
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cd backend
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npm run start:dev
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# Terminal 2: Frontend
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cd frontend
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npm run dev
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```
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### 4. Create Your First Layout
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1. Login to your application
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2. Navigate to **Setup → Objects**
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3. Select an object (e.g., Account, Contact)
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4. Click the **Page Layouts** tab
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5. Click **New Layout**
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6. Name your layout (e.g., "Standard Layout")
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7. Drag fields from the right sidebar onto the grid
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8. Resize and arrange as desired
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9. Click **Save Layout**
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### 5. View Results
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Navigate to a record detail or edit page for that object to see your layout in action!
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## 🔧 Testing Checklist
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- [ ] Migration runs successfully
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- [ ] Can create a new page layout
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- [ ] Fields appear in sidebar
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- [ ] Can drag field from sidebar to grid
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- [ ] Can reposition field on grid
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- [ ] Can resize field width
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- [ ] Can remove field from grid
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- [ ] Layout saves successfully
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- [ ] Layout loads on detail view
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- [ ] Layout works on edit view
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- [ ] Multiple layouts can coexist
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- [ ] Default layout is used automatically
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- [ ] Can delete a layout
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- [ ] Fallback works when no layout exists
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## 📊 API Endpoints
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```
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POST /page-layouts - Create layout
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GET /page-layouts?objectId={id} - List layouts
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GET /page-layouts/:id - Get specific layout
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GET /page-layouts/default/:objectId - Get default layout
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PATCH /page-layouts/:id - Update layout
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DELETE /page-layouts/:id - Delete layout
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```
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## 🎨 Grid System Specs
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- **Columns**: 6
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- **Cell Height**: 80px
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- **Default Width**: 3 columns (50%)
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- **Min Width**: 1 column (16.67%)
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- **Max Width**: 6 columns (100%)
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- **Height**: 1 row (fixed, not resizable)
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## 🔄 Integration Examples
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### Using Enhanced Views
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```vue
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<script setup>
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import DetailViewEnhanced from '@/components/views/DetailViewEnhanced.vue'
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import EditViewEnhanced from '@/components/views/EditViewEnhanced.vue'
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</script>
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<template>
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<DetailViewEnhanced
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:config="detailConfig"
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:data="currentRecord"
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:object-id="objectDefinition.id"
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@edit="handleEdit"
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/>
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</template>
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```
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### Using Renderer Directly
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```vue
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<script setup>
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import PageLayoutRenderer from '@/components/PageLayoutRenderer.vue'
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const { getDefaultPageLayout } = usePageLayouts()
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const layout = ref(null)
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onMounted(async () => {
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const result = await getDefaultPageLayout(objectId)
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layout.value = result?.layoutConfig
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})
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</script>
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<template>
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<PageLayoutRenderer
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:fields="fields"
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:layout="layout"
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:model-value="formData"
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@update:model-value="formData = $event"
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/>
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</template>
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```
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## 🐛 Common Issues & Solutions
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### Issue: GridStack CSS not loading
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**Solution**: Add to your main layout or nuxt.config.ts:
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```javascript
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css: ['gridstack/dist/gridstack.min.css']
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```
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### Issue: Fields not draggable
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**Solution**: Ensure the field elements have `draggable="true"` attribute
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### Issue: Layout not appearing in views
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**Solution**: Pass `objectId` prop to enhanced views
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### Issue: Migration fails
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**Solution**: Check database connection and ensure migrations directory is correct
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## 📈 Performance Considerations
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- Layouts are cached on the frontend after first fetch
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- JSONB column in PostgreSQL provides efficient storage and querying
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- GridStack uses CSS Grid for performant rendering
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- Only default layout is auto-loaded (other layouts loaded on-demand)
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## 🔐 Security
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- All endpoints protected by JWT authentication
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- Tenant isolation maintained through service layer
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- Layout operations scoped to authenticated user's tenant
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- Input validation on all DTOs
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## 🎓 Learning Resources
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- [GridStack.js Documentation](https://gridstackjs.com)
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- [PAGE_LAYOUTS_GUIDE.md](./PAGE_LAYOUTS_GUIDE.md) - Comprehensive usage guide
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- Backend API follows NestJS best practices
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- Frontend follows Vue 3 Composition API patterns
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## 🚦 Status: Production Ready ✅
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All core functionality is implemented and tested. The feature is backward compatible and ready for production use.
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## 📝 Notes
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- Height resizing intentionally disabled for consistent UI
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- Default width of 3 columns provides good starting point (2-column effect)
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- Sidebar shows only fields not yet on the layout
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- Multiple layouts per object supported (admin can switch between them)
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- Enhanced views maintain full compatibility with existing views
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