quality_app-v2/documentation/SET_BOXES_LOCATIONS_IMPLEMENTATION.md

# Set Boxes Locations Feature - Implementation Complete

**Date**: January 28, 2026  
**Status**: ✅ COMPLETE AND READY FOR TESTING

---

## Overview

The "Set Boxes Locations" feature has been fully implemented with a user-friendly three-tab interface for managing box-to-location assignments in the warehouse module.

## Features Implemented

### 1. **Tab 0: Assign Box to Location**
- Search for a box by its number
- View current box status and location
- Assign the box to any warehouse location
- Real-time feedback on success/failure

**Workflow:**
1. Scan or enter box number
2. System displays current box details
3. Enter target location code
4. Click "Assign to Location"
5. Box is updated with new location

### 2. **Tab 1: Find Boxes by Location**
- Search for a specific warehouse location
- View all boxes currently assigned to that location
- See box status (open/closed) for each box
- Display total count of boxes in location

**Workflow:**
1. Scan or enter location code
2. System retrieves location details
3. Display all boxes currently in that location
4. Visual indicator of box count
5. Box status displayed with color coding (green=open, red=closed)

### 3. **Tab 2: Move Box to New Location**
- Search for source location
- Select which box to move
- Specify new destination location
- Move box in one operation

**Workflow:**
1. Scan or enter current location code
2. System displays all boxes in that location
3. Click on box to select it
4. Enter new location code
5. Click "Move to New Location"
6. Box relocated automatically

---

## Backend Implementation

### New Database Functions

Located in `/srv/quality_app-v2/app/modules/warehouse/warehouse.py`:

```python
def search_box_by_number(box_number)
    # Returns: (success, box_data, status_code)
    # Searches for a box and returns its current details

def search_location_with_boxes(location_code)
    # Returns: (success, {location, boxes}, status_code)
    # Returns location info + all boxes in it

def assign_box_to_location(box_id, location_code)
    # Returns: (success, message, status_code)
    # Assigns box to a location

def move_box_to_new_location(box_id, new_location_code)
    # Returns: (success, message, status_code)
    # Moves box from current to new location
```

### New API Routes

Located in `/srv/quality_app-v2/app/modules/warehouse/routes.py`:

| Route | Method | Purpose |
|-------|--------|---------|
| `/warehouse/api/search-box` | POST | Search for a box by number |
| `/warehouse/api/search-location` | POST | Search for a location and get its boxes |
| `/warehouse/api/assign-box-to-location` | POST | Assign box to location |
| `/warehouse/api/move-box-to-location` | POST | Move box to new location |
| `/warehouse/api/get-locations` | GET | Get all warehouse locations |

### Example API Usage

**Search Box:**
```javascript
fetch('/warehouse/api/search-box', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({box_number: '00000001'})
})
```

**Assign Box to Location:**
```javascript
fetch('/warehouse/api/assign-box-to-location', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({
        box_id: 1,
        location_code: 'LOC-A01'
    })
})
```

---

## Frontend Implementation

### Template Structure

Located in `/srv/quality_app-v2/app/templates/modules/warehouse/set_boxes_locations.html`:

**Components:**
- Tab navigation with 3 sections
- Alert messages (success, error, info, warning)
- Form inputs with labels
- Information display boxes
- Box/Location list display
- Action buttons

**Design Features:**
- Mobile-responsive layout
- Spinner animations during API calls
- Real-time input validation
- Color-coded status badges
- Keyboard shortcut support (Enter key)
- Clean, modern Bootstrap-style UI

### JavaScript Functionality

**Tab Management:**
- Automatic tab switching on button click
- Preserves tab state during operations

**API Interactions:**
- Async/await for API calls
- Loading spinners during operations
- Error handling with user-friendly messages
- Success notifications with auto-clear

**User Experience:**
- Auto-focus on input fields
- Enter key to submit forms
- Clear/Reset buttons to start over
- Disabled buttons during loading
- No page refresh needed (AJAX-based)

---

## Database Schema

### Tables Used

**boxes_crates:**
```sql
- id (BIGINT PRIMARY KEY)
- box_number (VARCHAR(8) UNIQUE)
- status (ENUM: 'open', 'closed')
- location_id (BIGINT FK to warehouse_locations)
- created_at (TIMESTAMP)
- updated_at (TIMESTAMP)
- created_by (VARCHAR(100))
```

**warehouse_locations:**
```sql
- id (BIGINT PRIMARY KEY)
- location_code (VARCHAR(12) UNIQUE)
- size (INT)
- description (VARCHAR(250))
- created_at (TIMESTAMP)
- updated_at (TIMESTAMP)
```

---

## User Access Flow

```
1. User navigates to Warehouse Module
   ↓
2. Clicks "Set Boxes Locations"
   ↓
3. Selects one of three tabs:
   
   Tab 0: Assign Box
   - Search box number
   - Enter location code
   - Assign
   
   Tab 1: Find Boxes
   - Search location code
   - View all boxes in location
   
   Tab 2: Move Box
   - Search current location
   - Select box to move
   - Enter new location
   - Move
```

---

## Error Handling

All operations include comprehensive error handling:

- **Box Not Found**: "Box '[number]' not found"
- **Location Not Found**: "Location '[code]' not found"
- **Invalid Input**: "Box ID and location code are required"
- **Database Errors**: "Error: [specific error message]"

---

## Testing Checklist

Before going live, verify:

- [ ] Create test boxes in database
- [ ] Create test locations in database
- [ ] Test Tab 0: Search and assign box
- [ ] Test Tab 1: Search location and view boxes
- [ ] Test Tab 2: Move box to different location
- [ ] Test error handling (invalid inputs)
- [ ] Test with mobile/tablet devices
- [ ] Test keyboard shortcuts (Enter key)
- [ ] Test rapid consecutive operations
- [ ] Verify location_id updates in database

---

## Integration with Existing Features

This feature integrates seamlessly with:
- **Boxes Management** (`/warehouse/boxes`) - View and manage boxes
- **Locations Management** (`/warehouse/locations`) - Create warehouse locations
- **Warehouse Index** (`/warehouse/`) - Main warehouse dashboard
- **Database** - Uses existing boxes_crates and warehouse_locations tables

---

## Next Steps / Future Enhancements

Possible improvements for future versions:

1. **Barcode Scanning**: Support for barcode scanners (already partially implemented)
2. **Batch Operations**: Move multiple boxes at once
3. **Location History**: Track box movement history
4. **Reports**: Generate location utilization reports
5. **Permissions**: Add role-based access control
6. **Validation**: Add capacity limits to locations
7. **Audit Trail**: Log all location changes
8. **Export/Import**: Bulk box location operations

---

## Files Modified/Created

### New Functions Added
- `/srv/quality_app-v2/app/modules/warehouse/warehouse.py` (6 new functions)

### New Routes Added
- `/srv/quality_app-v2/app/modules/warehouse/routes.py` (5 new API endpoints)

### New Template Created
- `/srv/quality_app-v2/app/templates/modules/warehouse/set_boxes_locations.html` (Complete rewrite)

### Documentation Created
- `/srv/quality_app-v2/documentation/SET_BOXES_LOCATIONS_IMPLEMENTATION.md` (This file)

---

## Deployment Instructions

1. **No database migrations needed** - Uses existing tables
2. **No dependencies to install** - Uses Flask/MySQL that's already available
3. **No configuration changes** - Works with existing app configuration
4. **Ready to deploy** - All code follows existing patterns and standards

---

## Support

For issues or questions:
1. Check error messages in browser console
2. Review server logs in `/data/logs/`
3. Verify database connectivity
4. Ensure warehouse locations are created before testing

---

**Status**: Ready for User Acceptance Testing (UAT)