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21 changed files with 5282 additions and 162 deletions
63
README.md
63
README.md
|
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@ -15,11 +15,10 @@ A simple SQLite-based system for managing tablet lending and returns.
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## Files
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- `minimal_app.py` - Interactive command-line application (includes non-loanable device management)
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- `minimal_app.py` - **DEPRECATED** - Interactive command-line application (limited functionality, use `app.py` instead)
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- `test_app.py` - Test script that demonstrates functionality
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- `tablets.db` - SQLite database (created automatically, includes non_loanable_devices table)
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- `simple_app.py` - Web-based version (requires Flask, includes non-loanable device management)
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- `app.py` - Alternative web version (requires Flask, includes non-loanable device management)
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- `app.py` - **Recommended** - Full-featured web version (requires Flask, includes all features)
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## Quick Start
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@ -35,18 +34,21 @@ This will:
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- Demonstrate loan and return operations
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- Show the complete workflow
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### 2. Run the interactive application
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### 2. Run the web application (Recommended)
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```bash
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python3 minimal_app.py
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python3 app.py
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```
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This provides a menu-driven interface for:
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- Adding tablets
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- Adding users
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This provides a full-featured web interface for:
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- Adding tablets (with notes field)
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- Adding users (with email and phone)
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- Loaning tablets
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- Returning tablets
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- Viewing inventory and loan status
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- User loans view with search
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- Non-loanable devices management
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- Project management with markdown notes
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### 3. Database Structure
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@ -155,16 +157,47 @@ To backup your data:
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cp tablets.db tablets_backup_$(date +%Y%m%d).db
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```
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## Version Control
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## Testing
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This project uses Git for version control with the following structure:
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The project includes a comprehensive unit test suite with **46 tests** covering core functionality and edge cases.
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### Running Tests
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```bash
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# Install test dependencies (if not already installed)
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source .venv/bin/activate
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uv pip install pytest pytest-cov
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# Run all tests
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python3 -m pytest tests/ -v
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# Run with coverage report
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python3 -m pytest tests/ --cov=./ --cov-report=term-missing
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```
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### Test Structure
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| File | Tests | Coverage |
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|------|-------|----------|
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| `tests/test_core.py` | 21 | Core operations (tablet, user, loan CRUD) |
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| `tests/test_edge_cases.py` | 14 | Edge cases (duplicates, invalid IDs, etc.) |
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| `tests/test_minimal_app.py` | 11 | Application function tests |
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### Key Edge Cases Covered
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- Loan a device that's already loaned (prevents double-loaning)
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- Return a non-existent loan (handles gracefully)
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- Duplicate serial numbers (rejected at database level)
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- Duplicate user identifications (rejected at database level)
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- Invalid tablet/user IDs (validated before operations)
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- Multiple loans per user (one-to-many relationship)
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- Loan-return-loan sequence (device lifecycle)
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### Test Configuration
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Tests use isolated temporary databases and automatically clean up after each test run. No impact on production data.
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- `master` - Production-ready releases
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- `develop` - Integration branch for features
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- `feature/*` - Individual feature branches
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- `hotfix/*` - Urgent bug fixes
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See `CONTRIBUTING.md` for detailed workflow and commit conventions.
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## License
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||||
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||||
|
|
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24
RUNNING.md
24
RUNNING.md
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@ -48,10 +48,22 @@ pkill -f "python app.py"
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- **Port**: 5000 (configurable in app.py)
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- **Virtual Environment**: `.venv/` (created with uv)
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## Troubleshooting
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If you have issues:
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1. Check if the server is running: `ps aux | grep app.py`
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2. Check the database: `sqlite3 tablets.db`
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3. Restart the server: `source .venv/bin/activate && python app.py`
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## Running Tests
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Enjoy managing your tablets! 📱💻
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The project includes 46 unit tests for verifying functionality:
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|
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```bash
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# Run all tests
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python3 -m pytest tests/ -v
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# Run with coverage
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python3 -m pytest tests/ --cov=./ --cov-report=term-missing
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```
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Tests cover:
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- Core CRUD operations for tablets, users, and loans
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- Edge cases (duplicates, invalid IDs, already loaned devices)
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- Application function testing
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- Non-loanable device management
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All tests use isolated temporary databases and do not affect production data.
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|
|
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@ -147,3 +147,54 @@ def loan_device(device_id: int, user_id: int) -> Loan:
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- **Logging**: Registrar préstamos/devoluciones para auditoría
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- **Versionado API**: `/api/v1/...` para compatibilidad futura
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- **Pruebas**: Cubrir flujos críticos (préstamo con dispositivo no disponible, devolución de préstamo inexistente)
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---
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## 9. Migración a PostgreSQL (Futuro)
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### Contexto
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El sistema actualmente utiliza **SQLite** como base de datos embebida, ideal para prototipos y aplicaciones pequeñas. Sin embargo, SQLite tiene limitaciones para escalar.
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### Criterios para Migración
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Considerar migrar a **PostgreSQL** cuando:
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- Tamaño DB > 1GB
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- Más de 50 conexiones simultáneas
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- Más de 200 usuarios activos
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- Más de 500 transacciones por minuto
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- Necesidad de múltiples servidores
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### Arquitectura Propuesta
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Usar un patrón de **Repository** para abstraer la base de datos:
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```
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backend/
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├── repositories/
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│ ├── base_repository.py # Interfaz abstracta
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│ ├── sqlite_repository.py # Implementación SQLite
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│ └── postgres_repository.py # Implementación PostgreSQL
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└── config/
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└── database.py # Fábrica de repositorios
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```
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### Schema PostgreSQL
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El schema es similar al de SQLite pero con tipos de datos más específicos y índices adicionales para rendimiento.
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|
||||
### Pasos para Migración
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1. Instalar dependencias: `pip install psycopg2-binary sqlalchemy alembic`
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2. Configurar PostgreSQL y crear base de datos
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3. Ejecutar script de migración: `python scripts/migrate_to_postgres.py`
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4. Cambiar configuración: `DB_TYPE=postgres`
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5. Iniciar aplicación
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### Beneficios
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- Concurrencia ilimitada (múltiples escritores)
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- Escalabilidad a miles de conexiones
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- Mejor rendimiento con índices
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- Seguridad integrada (autenticación, roles)
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- Backups automáticos
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- Replicación y clustering
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|
|
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522
docs/CLI_VS_WEB.md
Normal file
522
docs/CLI_VS_WEB.md
Normal file
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@ -0,0 +1,522 @@
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# CLI vs Web Functionality Comparison
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## ⚠️ DEPRECATION NOTICE
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**The CLI version (`minimal_app.py`) is now DEPRECATED.**
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Please use the **web interface (`app.py`)** for all operations. The web interface provides:
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- Complete feature set
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- Full database schema support
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- Responsive mobile interface
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- Better user experience
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The CLI will be removed in a future version. This document is kept for historical reference.
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|
||||
---
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||||
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## Overview
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This document compares the functionality between the **DEPRECATED CLI version** (`minimal_app.py`) and the **Web version** (`app.py`) of the Tablet Management System.
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## Current State
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### Web Version (app.py) - ✅ RECOMMENDED
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The web version is the **primary and recommended** interface for all users.
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| Feature | Status | Route | Template |
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|---------|--------|-------|---------|
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| Add Tablet | ✅ | `/add_tablet` | `add_tablet.html` |
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| Add User | ✅ | `/add_user` | `add_user.html` |
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| Loan Tablet | ✅ | `/loan_tablet` | `loan_tablet.html` |
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| Return Tablet | ✅ | `/return_tablet/<id>` | N/A (redirects) |
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| Show Available Tablets | ✅ | `/` (index) | `index.html` |
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| Show Active Loans | ✅ | `/` (index) | `index.html` |
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| Loan History | ✅ | `/history` | `history.html` |
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| User Loans | ✅ | `/user_loans` | `user_loans.html` |
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| Add Non-Loanable Device | ✅ | `/add_non_loanable_device` | `add_non_loanable_device.html` |
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| Show Non-Loanable Devices | ✅ | `/non_loanable_devices` | `non_loanable_devices.html` |
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| Edit Non-Loanable Device | ✅ | `/edit_non_loanable_device/<id>` | `edit_non_loanable_device.html` |
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| Delete Non-Loanable Device | ✅ | `/delete_non_loanable_device/<id>` | N/A (redirects) |
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| Project Management | ✅ | `/project_management` | `project_management.html` |
|
||||
|
||||
### CLI Version (minimal_app.py) - ❌ DEPRECATED
|
||||
|
||||
**This CLI is deprecated and should not be used for new development.**
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|
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The CLI has limited functionality and does not support all database columns used by the web version.
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| Feature | Status | Function |
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|---------|--------|----------|
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| Add Tablet | ⚠️ Partial | `add_tablet()` - Missing notes field |
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| Add User | ⚠️ Partial | `add_user()` - Missing email/phone |
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| Loan Tablet | ✅ | `loan_tablet()` |
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| Return Tablet | ✅ | `return_tablet()` |
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| Show Available Tablets | ✅ | `show_available_tablets()` |
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| Show Active Loans | ✅ | `show_active_loans()` |
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| Loan History | ✅ | `show_loan_history()` |
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| Add Non-Loanable Device | ✅ | `add_non_loanable_device()` |
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||||
| Show Non-Loanable Devices | ✅ | `show_non_loanable_devices()` |
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| Delete Non-Loanable Device | ✅ | `delete_non_loanable_device()` |
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| Show Users | ✅ | `show_users()` |
|
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| **User Loans** | ❌ Missing | N/A |
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||||
| **Edit Non-Loanable Device** | ❌ Missing | N/A |
|
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| **Project Management** | ❌ Missing | N/A |
|
||||
|
||||
## Migration Path
|
||||
|
||||
### For Existing CLI Users
|
||||
|
||||
**Stop using the CLI and switch to the web interface:**
|
||||
|
||||
1. Run the web interface:
|
||||
```bash
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python3 app.py
|
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```
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|
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2. Open your browser to: http://localhost:5000
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||||
|
||||
3. The web interface uses the **same database** (`tablets.db`), so all your data is preserved.
|
||||
|
||||
### Database Compatibility
|
||||
|
||||
The CLI's database schema is **missing some columns** that the web version uses:
|
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- `tablets.notes` - Added by web version
|
||||
- `users.email` - Added by web version
|
||||
- `users.phone` - Added by web version
|
||||
|
||||
**If you've only used the CLI:** Your database is missing these columns. The web interface will still work, but won't be able to store notes, email, or phone until the columns are added.
|
||||
|
||||
**To fix the database schema:**
|
||||
```bash
|
||||
# Run the web interface - it will add missing columns automatically
|
||||
python3 app.py
|
||||
```
|
||||
|
||||
The web version's `init_db()` will add any missing columns when it runs.
|
||||
|
||||
## Recommendation
|
||||
|
||||
**Use `app.py` (web interface) for all operations.**
|
||||
|
||||
The CLI (`minimal_app.py`) is deprecated and will be removed in a future version. All development and maintenance efforts should focus on the web interface.
|
||||
|
||||
|
||||
## Missing Features in CLI
|
||||
|
||||
### 1. User Management
|
||||
**Web:** Supports name, email, phone, identification
|
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**CLI:** Only supports name, identification
|
||||
|
||||
**Missing:**
|
||||
- Email field
|
||||
- Phone field
|
||||
|
||||
### 2. Tablet Management
|
||||
**Web:** Supports brand, model, serial_number, notes
|
||||
**CLI:** Supports brand, model, serial_number
|
||||
|
||||
**Missing:**
|
||||
- Notes field
|
||||
|
||||
### 3. Non-Loanable Devices
|
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**Web:** Full CRUD (Create, Read, Update, Delete)
|
||||
**CLI:** Only Create, Read, Delete
|
||||
|
||||
**Missing:**
|
||||
- Edit functionality
|
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|
||||
### 4. Additional Features
|
||||
**Web:** Has these features
|
||||
**CLI:** Missing
|
||||
|
||||
- User Loans page (shows loans by user with search)
|
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- Project Management (markdown notes editor)
|
||||
- Flash messages (CLI uses print, which is fine)
|
||||
|
||||
## Database Schema Comparison
|
||||
|
||||
### Web Version Schema (app.py)
|
||||
|
||||
```sql
|
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-- tablets
|
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CREATE TABLE tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT
|
||||
)
|
||||
|
||||
-- users
|
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CREATE TABLE users (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
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name TEXT NOT NULL,
|
||||
email TEXT,
|
||||
phone TEXT,
|
||||
identification TEXT UNIQUE
|
||||
)
|
||||
|
||||
-- loans
|
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CREATE TABLE loans (
|
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id INTEGER PRIMARY KEY AUTOINCREMENT,
|
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tablet_id INTEGER NOT NULL,
|
||||
user_id INTEGER NOT NULL,
|
||||
loan_date TEXT NOT NULL,
|
||||
return_date TEXT,
|
||||
status TEXT DEFAULT 'active',
|
||||
FOREIGN KEY (tablet_id) REFERENCES tablets (id),
|
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FOREIGN KEY (user_id) REFERENCES users (id)
|
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)
|
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|
||||
-- non_loanable_devices
|
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CREATE TABLE non_loanable_devices (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
device_type TEXT NOT NULL,
|
||||
location TEXT,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT,
|
||||
purchase_date TEXT,
|
||||
purchase_cost REAL
|
||||
)
|
||||
```
|
||||
|
||||
### CLI Version Schema (minimal_app.py)
|
||||
|
||||
```sql
|
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-- tablets
|
||||
CREATE TABLE tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available'
|
||||
-- MISSING: notes TEXT
|
||||
)
|
||||
|
||||
-- users
|
||||
CREATE TABLE users (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
name TEXT NOT NULL,
|
||||
identification TEXT UNIQUE
|
||||
-- MISSING: email TEXT, phone TEXT
|
||||
)
|
||||
|
||||
-- loans
|
||||
CREATE TABLE loans (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
tablet_id INTEGER NOT NULL,
|
||||
user_id INTEGER NOT NULL,
|
||||
loan_date TEXT NOT NULL,
|
||||
return_date TEXT,
|
||||
status TEXT DEFAULT 'active',
|
||||
FOREIGN KEY (tablet_id) REFERENCES tablets (id),
|
||||
FOREIGN KEY (user_id) REFERENCES users (id)
|
||||
)
|
||||
|
||||
-- non_loanable_devices
|
||||
CREATE TABLE non_loanable_devices (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
device_type TEXT NOT NULL,
|
||||
location TEXT,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT,
|
||||
purchase_date TEXT,
|
||||
purchase_cost REAL
|
||||
)
|
||||
```
|
||||
|
||||
**Schema Differences:**
|
||||
- `tablets` table: CLI missing `notes` column
|
||||
- `users` table: CLI missing `email` and `phone` columns
|
||||
|
||||
## Recommendations
|
||||
|
||||
### Option 1: Update CLI to Match Web (Recommended)
|
||||
|
||||
Update `minimal_app.py` to:
|
||||
1. Add `notes` field to tablets
|
||||
2. Add `email` and `phone` fields to users
|
||||
3. Add edit functionality for non-loanable devices
|
||||
4. Add user loans view
|
||||
5. Add project management (optional)
|
||||
|
||||
**Pros:**
|
||||
- CLI has full feature parity with web
|
||||
- Same database schema
|
||||
- Users can use either interface
|
||||
|
||||
**Cons:**
|
||||
- More complex CLI
|
||||
- May not be needed if web is primary interface
|
||||
|
||||
### Option 2: Keep CLI Minimal (Current State)
|
||||
|
||||
Leave CLI as-is for basic operations only.
|
||||
|
||||
**Pros:**
|
||||
- Simple, focused CLI
|
||||
- Less code to maintain
|
||||
|
||||
**Cons:**
|
||||
- Database schema mismatch
|
||||
- Users can't access all features via CLI
|
||||
- Confusing for users who expect same functionality
|
||||
|
||||
### Option 3: Create Separate Database (Not Recommended)
|
||||
|
||||
Use different databases for CLI and web.
|
||||
|
||||
**Pros:**
|
||||
- Each can have optimized schema
|
||||
|
||||
**Cons:**
|
||||
- Data duplication
|
||||
- Sync issues
|
||||
- Confusing for users
|
||||
|
||||
## Suggested Action Plan
|
||||
|
||||
### Priority 1: Fix Database Schema Mismatch
|
||||
|
||||
The CLI's `init_db()` creates tables without `notes`, `email`, and `phone` columns, but the web version expects them. This can cause issues.
|
||||
|
||||
**Solution:** Update `minimal_app.py` `init_db()` to match `app.py` schema.
|
||||
|
||||
### Priority 2: Add Missing Fields to CLI Functions
|
||||
|
||||
1. Update `add_tablet()` to accept and store `notes`
|
||||
2. Update `add_user()` to accept and store `email` and `phone`
|
||||
3. Update `show_available_tablets()` and `show_non_loanable_devices()` to display all fields
|
||||
|
||||
### Priority 3: Add Missing Features (Optional)
|
||||
|
||||
1. Add `edit_non_loanable_device()` function
|
||||
2. Add `show_user_loans()` function
|
||||
3. Consider adding project management (lower priority)
|
||||
|
||||
## Code Changes Required
|
||||
|
||||
### 1. Update init_db() in minimal_app.py
|
||||
|
||||
```python
|
||||
def init_db():
|
||||
"""Initialize database with required tables - MATCH WEB VERSION"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Create tablets table - ADD NOTES COLUMN
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT
|
||||
)
|
||||
''')
|
||||
|
||||
# Create users table - ADD EMAIL AND PHONE COLUMNS
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS users (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
name TEXT NOT NULL,
|
||||
email TEXT,
|
||||
phone TEXT,
|
||||
identification TEXT UNIQUE
|
||||
)
|
||||
''')
|
||||
|
||||
# loans and non_loanable_devices are already correct
|
||||
# ... rest of init_db
|
||||
```
|
||||
|
||||
### 2. Update add_tablet() Function
|
||||
|
||||
```python
|
||||
def add_tablet(brand, model, serial_number, notes=''):
|
||||
"""Add a new tablet to inventory"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
try:
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status, notes)
|
||||
VALUES (?, ?, ?, 'available', ?)
|
||||
''', (brand, model, serial_number, notes))
|
||||
conn.commit()
|
||||
print(f"✓ Added tablet: {brand} {model} ({serial_number})")
|
||||
if notes:
|
||||
print(f" Notes: {notes}")
|
||||
except sqlite3.IntegrityError:
|
||||
print(f"✗ Error: Serial number {serial_number} already exists")
|
||||
finally:
|
||||
conn.close()
|
||||
```
|
||||
|
||||
### 3. Update add_user() Function
|
||||
|
||||
```python
|
||||
def add_user(name, identification, email='', phone=''):
|
||||
"""Add a new user"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
try:
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, email, phone, identification)
|
||||
VALUES (?, ?, ?, ?)
|
||||
''', (name, email, phone, identification))
|
||||
conn.commit()
|
||||
print(f"✓ Added user: {name} ({identification})")
|
||||
if email:
|
||||
print(f" Email: {email}")
|
||||
if phone:
|
||||
print(f" Phone: {phone}")
|
||||
except sqlite3.IntegrityError:
|
||||
print(f"✗ Error: Identification {identification} already exists")
|
||||
finally:
|
||||
conn.close()
|
||||
```
|
||||
|
||||
### 4. Update show_available_tablets() to Display Notes
|
||||
|
||||
```python
|
||||
def show_available_tablets():
|
||||
"""Show available tablets"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id, brand, model, serial_number, notes FROM tablets WHERE status = 'available'")
|
||||
tablets = cursor.fetchall()
|
||||
|
||||
print("\n=== Available Tablets ===")
|
||||
if tablets:
|
||||
for tablet in tablets:
|
||||
notes = f" | Notes: {tablet[4]}" if tablet[4] else ""
|
||||
print(f"ID: {tablet[0]}, {tablet[1]} {tablet[2]} ({tablet[3]}){notes}")
|
||||
else:
|
||||
print("No available tablets")
|
||||
|
||||
conn.close()
|
||||
```
|
||||
|
||||
### 5. Add Missing Functions
|
||||
|
||||
#### Edit Non-Loanable Device
|
||||
|
||||
```python
|
||||
def edit_non_loanable_device(device_id, **kwargs):
|
||||
"""Edit a non-loanable device"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Build update query dynamically
|
||||
updates = []
|
||||
params = []
|
||||
for key, value in kwargs.items():
|
||||
if value is not None:
|
||||
updates.append(f"{key} = ?")
|
||||
params.append(value)
|
||||
|
||||
if not updates:
|
||||
print("✗ No fields to update")
|
||||
conn.close()
|
||||
return
|
||||
|
||||
params.append(device_id)
|
||||
query = f"UPDATE non_loanable_devices SET {', '.join(updates)} WHERE id = ?"
|
||||
|
||||
cursor.execute(query, params)
|
||||
conn.commit()
|
||||
|
||||
if cursor.rowcount > 0:
|
||||
print(f"✓ Non-loanable device {device_id} updated")
|
||||
else:
|
||||
print(f"✗ Error: Device {device_id} not found")
|
||||
|
||||
conn.close()
|
||||
```
|
||||
|
||||
#### Show User Loans
|
||||
|
||||
```python
|
||||
def show_user_loans():
|
||||
"""Show loans grouped by user"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Get all users with their loans
|
||||
cursor.execute('''
|
||||
SELECT u.id, u.name, u.identification,
|
||||
GROUP_CONCAT(l.id, ",") as loan_ids,
|
||||
COUNT(l.id) as loan_count
|
||||
FROM users u
|
||||
LEFT JOIN loans l ON u.id = l.user_id
|
||||
GROUP BY u.id, u.name, u.identification
|
||||
''')
|
||||
users = cursor.fetchall()
|
||||
|
||||
print("\n=== User Loans ===")
|
||||
if users:
|
||||
for user in users:
|
||||
print(f"\nUser: {user[1]} ({user[2]}) - {user[3]} loans")
|
||||
|
||||
# Get loans for this user
|
||||
cursor.execute('''
|
||||
SELECT l.id, t.brand, t.model, t.serial_number, l.loan_date, l.return_date, l.status
|
||||
FROM loans l
|
||||
JOIN tablets t ON l.tablet_id = t.id
|
||||
WHERE l.user_id = ?
|
||||
ORDER BY l.loan_date DESC
|
||||
''', (user[0],))
|
||||
loans = cursor.fetchall()
|
||||
|
||||
for loan in loans:
|
||||
return_date = loan[5] or 'Not returned'
|
||||
print(f" Loan {loan[0]}: {loan[1]} {loan[2]} ({loan[3]})")
|
||||
print(f" Loan Date: {loan[4]}, Return Date: {return_date}, Status: {loan[6]}")
|
||||
else:
|
||||
print("No users found")
|
||||
|
||||
conn.close()
|
||||
```
|
||||
|
||||
## Migration Strategy
|
||||
|
||||
If you want to update the CLI to match the web version:
|
||||
|
||||
1. **Backup current database**
|
||||
```bash
|
||||
cp tablets.db tablets.db.backup
|
||||
```
|
||||
|
||||
2. **Update minimal_app.py** with the changes above
|
||||
|
||||
3. **Run updated CLI**
|
||||
```bash
|
||||
python3 minimal_app.py
|
||||
```
|
||||
|
||||
4. **Test all functionality**
|
||||
|
||||
5. **If database schema changed**, you may need to:
|
||||
- Drop and recreate tables (if starting fresh)
|
||||
- Or add missing columns with ALTER TABLE (if preserving data)
|
||||
|
||||
## Conclusion
|
||||
|
||||
The CLI version is **lagging behind** the web version in terms of:
|
||||
- Database schema (missing columns)
|
||||
- Feature completeness (missing functions)
|
||||
- Field support (missing email, phone, notes)
|
||||
|
||||
**Recommendation:** Update the CLI to match the web version's database schema and functionality to ensure consistency and avoid confusion for users who may use both interfaces.
|
||||
1191
docs/FRONTEND_OPTIONS.md
Normal file
1191
docs/FRONTEND_OPTIONS.md
Normal file
File diff suppressed because it is too large
Load diff
987
docs/MIGRATION_TO_POSTGRES.md
Normal file
987
docs/MIGRATION_TO_POSTGRES.md
Normal file
|
|
@ -0,0 +1,987 @@
|
|||
# PostgreSQL Migration Guide
|
||||
|
||||
This document describes how to migrate the Tablet Management System from SQLite to PostgreSQL when the database grows beyond SQLite's capabilities.
|
||||
|
||||
## When to Migrate
|
||||
|
||||
Consider migrating to PostgreSQL when you encounter any of these scenarios:
|
||||
|
||||
| Metric | SQLite Limit | PostgreSQL | Migration Trigger |
|
||||
|--------|--------------|------------|-------------------|
|
||||
| Database Size | ~10GB max | Unlimited | >1GB |
|
||||
| Concurrent Writers | 1 | Thousands | >50 simultaneous |
|
||||
| Active Users | <100 | Millions | >200 |
|
||||
| Transactions/min | <100 | 100K+ | >500 |
|
||||
| Servers | Single machine | Cluster | Multiple servers |
|
||||
| High Availability | No | Yes | Required |
|
||||
| Backup Strategy | Manual | Automated | Automated needed |
|
||||
|
||||
## Architecture Overview
|
||||
|
||||
The migration uses a **Repository Pattern** to abstract the database layer, allowing both SQLite and PostgreSQL to work seamlessly.
|
||||
|
||||
```
|
||||
project/
|
||||
├── backend/
|
||||
│ ├── config/
|
||||
│ │ ├── __init__.py
|
||||
│ │ ├── settings.py # Database configuration
|
||||
│ │ └── database.py # Repository factory
|
||||
│ ├── repositories/
|
||||
│ │ ├── __init__.py
|
||||
│ │ ├── base_repository.py # Abstract base classes
|
||||
│ │ ├── sqlite_repo.py # SQLite implementation
|
||||
│ │ └── postgres_repo.py # PostgreSQL implementation
|
||||
│ └── app.py # Main application (unchanged)
|
||||
├── migrations/ # Alembic migrations
|
||||
│ └── versions/
|
||||
│ └── initial_schema.py
|
||||
├── scripts/
|
||||
│ └── migrate_to_postgres.py # Migration script
|
||||
└── docker-compose.yml # Optional Docker setup
|
||||
```
|
||||
|
||||
## Step 1: Install Dependencies
|
||||
|
||||
```bash
|
||||
# For development
|
||||
pip install psycopg2-binary sqlalchemy alembic
|
||||
|
||||
# For production (more efficient)
|
||||
pip install psycopg2 sqlalchemy alembic
|
||||
```
|
||||
|
||||
## Step 2: Set Up PostgreSQL
|
||||
|
||||
### Option A: Local Installation
|
||||
|
||||
```bash
|
||||
# Ubuntu/Debian
|
||||
sudo apt update
|
||||
sudo apt install postgresql postgresql-contrib
|
||||
|
||||
# Create database and user
|
||||
sudo -u postgres psql
|
||||
```
|
||||
|
||||
In PostgreSQL shell:
|
||||
```sql
|
||||
CREATE DATABASE tablet_management;
|
||||
CREATE USER tablet_user WITH PASSWORD 'your_secure_password';
|
||||
GRANT ALL PRIVILEGES ON DATABASE tablet_management TO tablet_user;
|
||||
ALTER USER tablet_user CREATEDB;
|
||||
\q
|
||||
```
|
||||
|
||||
### Option B: Docker (Recommended for Development)
|
||||
|
||||
```bash
|
||||
# Start PostgreSQL container
|
||||
docker run --name tablet-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_USER=tablet_user -e POSTGRES_DB=tablet_management -p 5432:5432 -d postgres:16-alpine
|
||||
|
||||
# Or use docker-compose (see docker-compose.yml)
|
||||
docker-compose up -d postgres
|
||||
```
|
||||
|
||||
## Step 3: Configure Environment
|
||||
|
||||
Create a `.env` file:
|
||||
|
||||
```bash
|
||||
# Database configuration
|
||||
DB_TYPE=postgres # or 'sqlite'
|
||||
DB_URL=postgresql://tablet_user:your_password@localhost:5432/tablet_management
|
||||
|
||||
# For SQLite (fallback)
|
||||
DB_PATH=tablets.db
|
||||
```
|
||||
|
||||
Or set environment variables:
|
||||
|
||||
```bash
|
||||
export DB_TYPE=postgres
|
||||
export DB_URL=postgresql://tablet_user:your_password@localhost:5432/tablet_management
|
||||
```
|
||||
|
||||
## Step 4: Create Repository Abstraction
|
||||
|
||||
### Base Repository (Abstract Interface)
|
||||
|
||||
```python
|
||||
# backend/repositories/base_repository.py
|
||||
from abc import ABC, abstractmethod
|
||||
from typing import Optional, List
|
||||
from datetime import datetime
|
||||
|
||||
|
||||
class BaseTabletRepository(ABC):
|
||||
@abstractmethod
|
||||
def get_by_id(self, tablet_id: int) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_by_serial(self, serial: str) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_all(self, status: Optional[str] = None) -> List[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def add(self, brand: str, model: str, serial_number: str, notes: Optional[str] = None) -> dict:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def update_status(self, tablet_id: int, status: str) -> bool:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def delete(self, tablet_id: int) -> bool:
|
||||
pass
|
||||
|
||||
|
||||
class BaseUserRepository(ABC):
|
||||
@abstractmethod
|
||||
def get_by_id(self, user_id: int) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_by_identification(self, identification: str) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_all(self) -> List[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def add(self, name: str, email: Optional[str], phone: Optional[str], identification: str) -> dict:
|
||||
pass
|
||||
|
||||
|
||||
class BaseLoanRepository(ABC):
|
||||
@abstractmethod
|
||||
def get_by_id(self, loan_id: int) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_active_by_tablet(self, tablet_id: int) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_by_user(self, user_id: int) -> List[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_all(self, status: Optional[str] = None) -> List[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def create(self, tablet_id: int, user_id: int) -> dict:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def return_loan(self, loan_id: int) -> bool:
|
||||
pass
|
||||
|
||||
|
||||
class BaseNonLoanableDeviceRepository(ABC):
|
||||
@abstractmethod
|
||||
def get_by_id(self, device_id: int) -> Optional[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def get_all(self) -> List[dict]:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def add(self, brand: str, model: str, serial_number: str, device_type: str,
|
||||
location: Optional[str] = None, notes: Optional[str] = None,
|
||||
purchase_date: Optional[str] = None, purchase_cost: Optional[float] = None) -> dict:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def update(self, device_id: int, **kwargs) -> bool:
|
||||
pass
|
||||
|
||||
@abstractmethod
|
||||
def delete(self, device_id: int) -> bool:
|
||||
pass
|
||||
```
|
||||
|
||||
### SQLite Implementation
|
||||
|
||||
```python
|
||||
# backend/repositories/sqlite_repo.py
|
||||
import sqlite3
|
||||
from typing import Optional, List
|
||||
from .base_repository import (
|
||||
BaseTabletRepository, BaseUserRepository,
|
||||
BaseLoanRepository, BaseNonLoanableDeviceRepository
|
||||
)
|
||||
|
||||
|
||||
class SQLiteTabletRepository(BaseTabletRepository):
|
||||
def __init__(self, db_path: str = 'tablets.db'):
|
||||
self.db_path = db_path
|
||||
self._init_db()
|
||||
|
||||
def _init_db(self):
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT
|
||||
)
|
||||
''')
|
||||
conn.commit()
|
||||
conn.close()
|
||||
|
||||
def get_by_id(self, tablet_id: int) -> Optional[dict]:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
conn.row_factory = sqlite3.Row
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM tablets WHERE id = ?", (tablet_id,))
|
||||
row = cursor.fetchone()
|
||||
conn.close()
|
||||
return dict(row) if row else None
|
||||
|
||||
def get_by_serial(self, serial: str) -> Optional[dict]:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
conn.row_factory = sqlite3.Row
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM tablets WHERE serial_number = ?", (serial,))
|
||||
row = cursor.fetchone()
|
||||
conn.close()
|
||||
return dict(row) if row else None
|
||||
|
||||
def get_all(self, status: Optional[str] = None) -> List[dict]:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
conn.row_factory = sqlite3.Row
|
||||
cursor = conn.cursor()
|
||||
query = "SELECT * FROM tablets"
|
||||
params = ()
|
||||
if status:
|
||||
query += " WHERE status = ?"
|
||||
params = (status,)
|
||||
cursor.execute(query, params)
|
||||
results = [dict(row) for row in cursor.fetchall()]
|
||||
conn.close()
|
||||
return results
|
||||
|
||||
def add(self, brand: str, model: str, serial_number: str, notes: Optional[str] = None) -> dict:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
conn.row_factory = sqlite3.Row
|
||||
cursor = conn.cursor()
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status, notes)
|
||||
VALUES (?, ?, ?, 'available', ?)
|
||||
''', (brand, model, serial_number, notes))
|
||||
conn.commit()
|
||||
tablet_id = cursor.lastrowid
|
||||
cursor.execute("SELECT * FROM tablets WHERE id = ?", (tablet_id,))
|
||||
row = cursor.fetchone()
|
||||
conn.close()
|
||||
return dict(row)
|
||||
|
||||
def update_status(self, tablet_id: int, status: str) -> bool:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("UPDATE tablets SET status = ? WHERE id = ?", (status, tablet_id))
|
||||
conn.commit()
|
||||
changed = cursor.rowcount > 0
|
||||
conn.close()
|
||||
return changed
|
||||
|
||||
def delete(self, tablet_id: int) -> bool:
|
||||
conn = sqlite3.connect(self.db_path)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("DELETE FROM tablets WHERE id = ?", (tablet_id,))
|
||||
conn.commit()
|
||||
deleted = cursor.rowcount > 0
|
||||
conn.close()
|
||||
return deleted
|
||||
|
||||
|
||||
# Similar implementations for SQLiteUserRepository, SQLiteLoanRepository, etc.
|
||||
```
|
||||
|
||||
### PostgreSQL Implementation
|
||||
|
||||
```python
|
||||
# backend/repositories/postgres_repo.py
|
||||
import psycopg2
|
||||
from psycopg2 import sql
|
||||
from psycopg2.extras import DictCursor
|
||||
from typing import Optional, List
|
||||
from .base_repository import (
|
||||
BaseTabletRepository, BaseUserRepository,
|
||||
BaseLoanRepository, BaseNonLoanableDeviceRepository
|
||||
)
|
||||
|
||||
|
||||
class PostgreSQLTabletRepository(BaseTabletRepository):
|
||||
def __init__(self, connection_string: str):
|
||||
self.connection_string = connection_string
|
||||
self._init_db()
|
||||
|
||||
def _get_connection(self):
|
||||
return psycopg2.connect(self.connection_string)
|
||||
|
||||
def _init_db(self):
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor()
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id SERIAL PRIMARY KEY,
|
||||
brand VARCHAR(100) NOT NULL,
|
||||
model VARCHAR(100) NOT NULL,
|
||||
serial_number VARCHAR(50) UNIQUE NOT NULL,
|
||||
status VARCHAR(20) DEFAULT 'available',
|
||||
notes TEXT,
|
||||
created_at TIMESTAMP DEFAULT NOW(),
|
||||
updated_at TIMESTAMP DEFAULT NOW()
|
||||
)
|
||||
''')
|
||||
cursor.execute('''
|
||||
CREATE INDEX IF NOT EXISTS idx_tablets_serial
|
||||
ON tablets(serial_number)
|
||||
''')
|
||||
cursor.execute('''
|
||||
CREATE INDEX IF NOT EXISTS idx_tablets_status
|
||||
ON tablets(status)
|
||||
''')
|
||||
conn.commit()
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
def get_by_id(self, tablet_id: int) -> Optional[dict]:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor(cursor_factory=DictCursor)
|
||||
cursor.execute("SELECT * FROM tablets WHERE id = %s", (tablet_id,))
|
||||
row = cursor.fetchone()
|
||||
conn.close()
|
||||
return dict(row) if row else None
|
||||
|
||||
def get_by_serial(self, serial: str) -> Optional[dict]:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor(cursor_factory=DictCursor)
|
||||
cursor.execute("SELECT * FROM tablets WHERE serial_number = %s", (serial,))
|
||||
row = cursor.fetchone()
|
||||
conn.close()
|
||||
return dict(row) if row else None
|
||||
|
||||
def get_all(self, status: Optional[str] = None) -> List[dict]:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor(cursor_factory=DictCursor)
|
||||
query = "SELECT * FROM tablets"
|
||||
params = ()
|
||||
if status:
|
||||
query += " WHERE status = %s"
|
||||
params = (status,)
|
||||
cursor.execute(query, params)
|
||||
results = [dict(row) for row in cursor.fetchall()]
|
||||
conn.close()
|
||||
return results
|
||||
|
||||
def add(self, brand: str, model: str, serial_number: str, notes: Optional[str] = None) -> dict:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor(cursor_factory=DictCursor)
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status, notes)
|
||||
VALUES (%s, %s, %s, 'available', %s)
|
||||
RETURNING *
|
||||
''', (brand, model, serial_number, notes))
|
||||
row = cursor.fetchone()
|
||||
conn.commit()
|
||||
conn.close()
|
||||
return dict(row)
|
||||
|
||||
def update_status(self, tablet_id: int, status: str) -> bool:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor()
|
||||
cursor.execute(
|
||||
"UPDATE tablets SET status = %s, updated_at = NOW() WHERE id = %s",
|
||||
(status, tablet_id)
|
||||
)
|
||||
conn.commit()
|
||||
changed = cursor.rowcount > 0
|
||||
conn.close()
|
||||
return changed
|
||||
|
||||
def delete(self, tablet_id: int) -> bool:
|
||||
conn = self._get_connection()
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("DELETE FROM tablets WHERE id = %s", (tablet_id,))
|
||||
conn.commit()
|
||||
deleted = cursor.rowcount > 0
|
||||
conn.close()
|
||||
return deleted
|
||||
|
||||
|
||||
# Similar implementations for PostgreSQLUserRepository, PostgreSQLLoanRepository, etc.
|
||||
```
|
||||
|
||||
## Step 5: Create Repository Factory
|
||||
|
||||
```python
|
||||
# backend/config/database.py
|
||||
import os
|
||||
from backend.repositories.sqlite_repo import (
|
||||
SQLiteTabletRepository, SQLiteUserRepository,
|
||||
SQLiteLoanRepository, SQLiteNonLoanableDeviceRepository
|
||||
)
|
||||
from backend.repositories.postgres_repo import (
|
||||
PostgreSQLTabletRepository, PostgreSQLUserRepository,
|
||||
PostgreSQLLoanRepository, PostgreSQLNonLoanableDeviceRepository
|
||||
)
|
||||
from backend.repositories.base_repository import (
|
||||
BaseTabletRepository, BaseUserRepository,
|
||||
BaseLoanRepository, BaseNonLoanableDeviceRepository
|
||||
)
|
||||
|
||||
|
||||
class DatabaseConfig:
|
||||
def __init__(self):
|
||||
self.db_type = os.getenv('DB_TYPE', 'sqlite')
|
||||
self.db_url = os.getenv('DB_URL', '')
|
||||
self.db_path = os.getenv('DB_PATH', 'tablets.db')
|
||||
|
||||
@property
|
||||
def is_postgres(self) -> bool:
|
||||
return self.db_type == 'postgres'
|
||||
|
||||
|
||||
def get_tablet_repository() -> BaseTabletRepository:
|
||||
config = DatabaseConfig()
|
||||
if config.is_postgres:
|
||||
return PostgreSQLTabletRepository(config.db_url)
|
||||
else:
|
||||
return SQLiteTabletRepository(config.db_path)
|
||||
|
||||
|
||||
def get_user_repository() -> BaseUserRepository:
|
||||
config = DatabaseConfig()
|
||||
if config.is_postgres:
|
||||
return PostgreSQLUserRepository(config.db_url)
|
||||
else:
|
||||
return SQLiteUserRepository(config.db_path)
|
||||
|
||||
|
||||
def get_loan_repository() -> BaseLoanRepository:
|
||||
config = DatabaseConfig()
|
||||
if config.is_postgres:
|
||||
return PostgreSQLLoanRepository(config.db_url)
|
||||
else:
|
||||
return SQLiteLoanRepository(config.db_path)
|
||||
|
||||
|
||||
def get_non_loanable_device_repository() -> BaseNonLoanableDeviceRepository:
|
||||
config = DatabaseConfig()
|
||||
if config.is_postgres:
|
||||
return PostgreSQLNonLoanableDeviceRepository(config.db_url)
|
||||
else:
|
||||
return SQLiteNonLoanableDeviceRepository(config.db_path)
|
||||
```
|
||||
|
||||
## Step 6: Update Application to Use Repositories
|
||||
|
||||
Modify your application to use the repository pattern:
|
||||
|
||||
```python
|
||||
# In your app.py or service layer
|
||||
from backend.config.database import (
|
||||
get_tablet_repository, get_user_repository,
|
||||
get_loan_repository, get_non_loanable_device_repository
|
||||
)
|
||||
|
||||
# Instead of direct SQLite calls:
|
||||
tablet_repo = get_tablet_repository()
|
||||
user_repo = get_user_repository()
|
||||
loan_repo = get_loan_repository()
|
||||
|
||||
# Example: Loan a tablet
|
||||
def loan_tablet(tablet_id: int, user_id: int):
|
||||
# Get repositories
|
||||
tablet_repo = get_tablet_repository()
|
||||
user_repo = get_user_repository()
|
||||
loan_repo = get_loan_repository()
|
||||
|
||||
# Validate
|
||||
tablet = tablet_repo.get_by_id(tablet_id)
|
||||
if not tablet:
|
||||
raise ValueError("Tablet not found")
|
||||
|
||||
if tablet['status'] != 'available':
|
||||
raise ValueError("Tablet not available")
|
||||
|
||||
user = user_repo.get_by_id(user_id)
|
||||
if not user:
|
||||
raise ValueError("User not found")
|
||||
|
||||
# Check for active loan
|
||||
active_loan = loan_repo.get_active_by_tablet(tablet_id)
|
||||
if active_loan:
|
||||
raise ValueError("Tablet already loaned")
|
||||
|
||||
# Create loan
|
||||
loan = loan_repo.create(tablet_id, user_id)
|
||||
|
||||
# Update tablet status
|
||||
tablet_repo.update_status(tablet_id, 'loaned')
|
||||
|
||||
return loan
|
||||
```
|
||||
|
||||
## Step 7: Create Migration Script
|
||||
|
||||
```python
|
||||
# scripts/migrate_to_postgres.py
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
Migration script from SQLite to PostgreSQL
|
||||
"""
|
||||
import sqlite3
|
||||
import psycopg2
|
||||
from psycopg2.extras import DictCursor
|
||||
import argparse
|
||||
from tqdm import tqdm
|
||||
import os
|
||||
|
||||
|
||||
def create_postgres_tables(conn):
|
||||
"""Create all tables in PostgreSQL"""
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Tablets
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id SERIAL PRIMARY KEY,
|
||||
brand VARCHAR(100) NOT NULL,
|
||||
model VARCHAR(100) NOT NULL,
|
||||
serial_number VARCHAR(50) UNIQUE NOT NULL,
|
||||
status VARCHAR(20) DEFAULT 'available',
|
||||
notes TEXT,
|
||||
created_at TIMESTAMP DEFAULT NOW(),
|
||||
updated_at TIMESTAMP DEFAULT NOW()
|
||||
)
|
||||
''')
|
||||
|
||||
# Users
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS users (
|
||||
id SERIAL PRIMARY KEY,
|
||||
name VARCHAR(100) NOT NULL,
|
||||
email VARCHAR(255),
|
||||
phone VARCHAR(20),
|
||||
identification VARCHAR(50) UNIQUE NOT NULL,
|
||||
created_at TIMESTAMP DEFAULT NOW(),
|
||||
updated_at TIMESTAMP DEFAULT NOW()
|
||||
)
|
||||
''')
|
||||
|
||||
# Loans
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS loans (
|
||||
id SERIAL PRIMARY KEY,
|
||||
tablet_id INTEGER NOT NULL REFERENCES tablets(id) ON DELETE RESTRICT,
|
||||
user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
|
||||
loan_date TIMESTAMP NOT NULL DEFAULT NOW(),
|
||||
return_date TIMESTAMP,
|
||||
status VARCHAR(20) DEFAULT 'active',
|
||||
created_at TIMESTAMP DEFAULT NOW()
|
||||
)
|
||||
''')
|
||||
|
||||
# Non-loanable devices
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS non_loanable_devices (
|
||||
id SERIAL PRIMARY KEY,
|
||||
brand VARCHAR(100) NOT NULL,
|
||||
model VARCHAR(100) NOT NULL,
|
||||
serial_number VARCHAR(50) UNIQUE NOT NULL,
|
||||
device_type VARCHAR(50) NOT NULL,
|
||||
location VARCHAR(100),
|
||||
status VARCHAR(20) DEFAULT 'available',
|
||||
notes TEXT,
|
||||
purchase_date DATE,
|
||||
purchase_cost DECIMAL(10,2),
|
||||
created_at TIMESTAMP DEFAULT NOW(),
|
||||
updated_at TIMESTAMP DEFAULT NOW()
|
||||
)
|
||||
''')
|
||||
|
||||
# Indexes for performance
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_tablets_serial ON tablets(serial_number)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_tablets_status ON tablets(status)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_tablets_brand ON tablets(brand)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_users_identification ON users(identification)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_loans_tablet ON loans(tablet_id)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_loans_user ON loans(user_id)')
|
||||
cursor.execute('CREATE INDEX IF NOT EXISTS idx_loans_status ON loans(status)')
|
||||
|
||||
conn.commit()
|
||||
|
||||
|
||||
def migrate_table(conn_sqlite, conn_pg, table_name: str, pg_create_table: str):
|
||||
"""Generic migration for a table"""
|
||||
cursor_sqlite = conn_sqlite.cursor()
|
||||
cursor_pg = conn_pg.cursor()
|
||||
|
||||
# Get all data from SQLite
|
||||
cursor_sqlite.execute(f"SELECT * FROM {table_name}")
|
||||
rows = cursor_sqlite.fetchall()
|
||||
|
||||
if not rows:
|
||||
print(f"No data to migrate for {table_name}")
|
||||
return
|
||||
|
||||
# Get column names
|
||||
column_names = [desc[0] for desc in cursor_sqlite.description]
|
||||
|
||||
# Prepare INSERT statement
|
||||
columns = ', '.join(column_names)
|
||||
placeholders = ', '.join(['%s'] * len(column_names))
|
||||
insert_sql = f"INSERT INTO {table_name} ({columns}) VALUES ({placeholders}) ON CONFLICT DO NOTHING"
|
||||
|
||||
# Migrate data
|
||||
for row in tqdm(rows, desc=f"Migrating {table_name}"):
|
||||
cursor_pg.execute(insert_sql, row)
|
||||
|
||||
conn_pg.commit()
|
||||
print(f"✓ Migrated {len(rows)} rows from {table_name}")
|
||||
|
||||
|
||||
def migrate_all(sqlite_path: str, pg_url: str):
|
||||
"""Migrate all data from SQLite to PostgreSQL"""
|
||||
print("Starting migration from SQLite to PostgreSQL...")
|
||||
|
||||
# Connect to SQLite
|
||||
conn_sqlite = sqlite3.connect(sqlite_path)
|
||||
|
||||
# Connect to PostgreSQL
|
||||
conn_pg = psycopg2.connect(pg_url)
|
||||
|
||||
try:
|
||||
# Create tables
|
||||
print("Creating PostgreSQL tables...")
|
||||
create_postgres_tables(conn_pg)
|
||||
|
||||
# Migrate each table
|
||||
migrate_table(conn_sqlite, conn_pg, 'tablets', '')
|
||||
migrate_table(conn_sqlite, conn_pg, 'users', '')
|
||||
migrate_table(conn_sqlite, conn_pg, 'loans', '')
|
||||
migrate_table(conn_sqlite, conn_pg, 'non_loanable_devices', '')
|
||||
|
||||
print("\n✓ Migration completed successfully!")
|
||||
print(f" SQLite: {sqlite_path}")
|
||||
print(f" PostgreSQL: {pg_url}")
|
||||
|
||||
except Exception as e:
|
||||
conn_pg.rollback()
|
||||
print(f"\n✗ Migration failed: {e}")
|
||||
raise
|
||||
finally:
|
||||
conn_sqlite.close()
|
||||
conn_pg.close()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
parser = argparse.ArgumentParser(description='Migrate from SQLite to PostgreSQL')
|
||||
parser.add_argument('--sqlite', default='tablets.db', help='SQLite database path')
|
||||
parser.add_argument('--postgres', required=True, help='PostgreSQL connection URL')
|
||||
args = parser.parse_args()
|
||||
|
||||
migrate_all(args.sqlite, args.postgres)
|
||||
```
|
||||
|
||||
## Step 8: Run Migration
|
||||
|
||||
```bash
|
||||
# Test the migration first (dry run)
|
||||
python scripts/migrate_to_postgres.py --sqlite tablets.db --postgres postgresql://tablet_user:password@localhost:5432/tablet_management_test
|
||||
|
||||
# Verify data in test database
|
||||
psql -U tablet_user -d tablet_management_test -c "SELECT COUNT(*) FROM tablets;"
|
||||
|
||||
# When ready, migrate to production
|
||||
python scripts/migrate_to_postgres.py --sqlite tablets.db --postgres postgresql://tablet_user:password@localhost:5432/tablet_management
|
||||
```
|
||||
|
||||
## Step 9: Switch to PostgreSQL
|
||||
|
||||
```bash
|
||||
# Update environment variables
|
||||
export DB_TYPE=postgres
|
||||
export DB_URL=postgresql://tablet_user:password@localhost:5432/tablet_management
|
||||
|
||||
# Restart application
|
||||
python app.py
|
||||
```
|
||||
|
||||
## Step 10: Verify and Monitor
|
||||
|
||||
```bash
|
||||
# Check application logs for errors
|
||||
# Monitor database connections
|
||||
psql -U tablet_user -d tablet_management -c "SELECT COUNT(*) FROM tablets;"
|
||||
|
||||
# Check active connections
|
||||
psql -U postgres -c "SELECT * FROM pg_stat_activity WHERE datname = 'tablet_management';"
|
||||
```
|
||||
|
||||
## Rollback Plan
|
||||
|
||||
If something goes wrong:
|
||||
|
||||
1. **Immediate rollback:**
|
||||
```bash
|
||||
# Switch back to SQLite
|
||||
export DB_TYPE=sqlite
|
||||
export DB_PATH=tablets.db
|
||||
python app.py
|
||||
```
|
||||
|
||||
2. **Data verification:**
|
||||
```bash
|
||||
# Compare counts
|
||||
sqlite3 tablets.db "SELECT COUNT(*) FROM tablets;"
|
||||
psql -U tablet_user -d tablet_management -c "SELECT COUNT(*) FROM tablets;"
|
||||
```
|
||||
|
||||
3. **Backup PostgreSQL data:**
|
||||
```bash
|
||||
pg_dump -U tablet_user -d tablet_management > postgres_backup_$(date +%Y%m%d).sql
|
||||
```
|
||||
|
||||
## Docker Compose (Optional)
|
||||
|
||||
For easy deployment with Docker:
|
||||
|
||||
```yaml
|
||||
# docker-compose.yml
|
||||
version: '3.8'
|
||||
|
||||
services:
|
||||
postgres:
|
||||
image: postgres:16-alpine
|
||||
container_name: tablet_db
|
||||
environment:
|
||||
POSTGRES_DB: tablet_management
|
||||
POSTGRES_USER: tablet_user
|
||||
POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
|
||||
ports:
|
||||
- "5432:5432"
|
||||
volumes:
|
||||
- postgres_data:/var/lib/postgresql/data
|
||||
healthcheck:
|
||||
test: ["CMD-SHELL", "pg_isready -U tablet_user -d tablet_management"]
|
||||
interval: 5s
|
||||
timeout: 5s
|
||||
retries: 5
|
||||
restart: unless-stopped
|
||||
|
||||
app:
|
||||
build: .
|
||||
container_name: tablet_app
|
||||
environment:
|
||||
DB_TYPE: postgres
|
||||
DB_URL: postgresql://tablet_user:${POSTGRES_PASSWORD:-changeme}@postgres:5432/tablet_management
|
||||
ports:
|
||||
- "5000:5000"
|
||||
depends_on:
|
||||
postgres:
|
||||
condition: service_healthy
|
||||
restart: unless-stopped
|
||||
|
||||
volumes:
|
||||
postgres_data:
|
||||
```
|
||||
|
||||
Start with Docker:
|
||||
```bash
|
||||
docker-compose up -d
|
||||
```
|
||||
|
||||
## Benefits of PostgreSQL
|
||||
|
||||
### Performance
|
||||
- **Concurrency:** Multiple writers simultaneously (no lock contention)
|
||||
- **Indexing:** Advanced index types (B-tree, Hash, GiST, GIN, BRIN)
|
||||
- **Query Optimization:** Advanced query planner
|
||||
- **Connection Pooling:** Built-in support
|
||||
|
||||
### Scalability
|
||||
- **Vertical:** Handles large datasets efficiently
|
||||
- **Horizontal:** Read replicas, partitioning, sharding
|
||||
- **Connections:** Supports thousands of concurrent connections
|
||||
|
||||
### Reliability
|
||||
- **ACID Compliance:** Full transaction support
|
||||
- **Point-in-Time Recovery:** Restore to any moment
|
||||
- **Replication:** Master-slave, synchronous, asynchronous
|
||||
- **Backups:** `pg_dump`, `pg_basebackup`, continuous archiving
|
||||
|
||||
### Security
|
||||
- **Authentication:** Multiple methods (password, MD5, SCRAM, LDAP, Kerberos)
|
||||
- **Authorization:** Role-based access control (RBAC)
|
||||
- **Row-Level Security:** Policies for fine-grained access
|
||||
- **Encryption:** SSL, at-rest encryption
|
||||
|
||||
### Features
|
||||
- **JSON Support:** Native JSON/JSONB data type
|
||||
- **Full-Text Search:** Advanced text search capabilities
|
||||
- **Arrays:** Store arrays of values
|
||||
- **Custom Types:** Create your own data types
|
||||
- **Triggers:** Automatic actions on events
|
||||
- **Stored Procedures:** Server-side functions
|
||||
|
||||
## Monitoring PostgreSQL
|
||||
|
||||
### Basic Queries
|
||||
|
||||
```sql
|
||||
-- Active connections
|
||||
SELECT * FROM pg_stat_activity WHERE datname = 'tablet_management';
|
||||
|
||||
-- Table sizes
|
||||
SELECT table_name, pg_size_pretty(pg_total_relation_size(table_name))
|
||||
FROM information_schema.tables WHERE table_schema = 'public';
|
||||
|
||||
-- Index usage
|
||||
SELECT indexrelname, idx_scan, idx_tup_read, idx_tup_fetch
|
||||
FROM pg_stat_user_indexes;
|
||||
|
||||
-- Slow queries (requires pg_stat_statements extension)
|
||||
SELECT query, total_time, calls, mean_time
|
||||
FROM pg_stat_statements ORDER BY mean_time DESC LIMIT 10;
|
||||
```
|
||||
|
||||
### Enable pg_stat_statements
|
||||
|
||||
```sql
|
||||
-- In PostgreSQL
|
||||
CREATE EXTENSION pg_stat_statements;
|
||||
|
||||
-- Then in postgresql.conf
|
||||
shared_preload_libraries = 'pg_stat_statements'
|
||||
pg_stat_statements.track = all
|
||||
```
|
||||
|
||||
## Maintenance Tasks
|
||||
|
||||
### Regular Maintenance
|
||||
|
||||
```bash
|
||||
# Vacuum (reclaim space, update statistics)
|
||||
vacuumdb -U tablet_user -d tablet_management --analyze
|
||||
|
||||
# Reindex (rebuild indexes)
|
||||
reindexdb -U tablet_user -d tablet_management
|
||||
```
|
||||
|
||||
### Backup Strategy
|
||||
|
||||
```bash
|
||||
# Daily backup
|
||||
pg_dump -U tablet_user -d tablet_management > /backups/tablet_management_$(date +%Y%m%d).sql
|
||||
|
||||
# Compressed backup
|
||||
pg_dump -U tablet_user -d tablet_management | gzip > /backups/tablet_management_$(date +%Y%m%d).sql.gz
|
||||
|
||||
# Continuous archiving (WAL)
|
||||
# In postgresql.conf:
|
||||
wal_level = replica
|
||||
archive_mode = on
|
||||
archive_command = 'test ! -f /backups/wal/%f && cp %p /backups/wal/%f'
|
||||
```
|
||||
|
||||
## Performance Optimization
|
||||
|
||||
### Configuration Tuning
|
||||
|
||||
```conf
|
||||
# postgresql.conf recommendations
|
||||
shared_buffers = 4GB # 25% of total RAM
|
||||
work_mem = 16MB # For complex sorts
|
||||
maintenance_work_mem = 512MB # For VACUUM, index creation
|
||||
effective_cache_size = 12GB # 75% of total RAM
|
||||
random_page_cost = 1.1 # SSD: 1.1, HDD: 4.0
|
||||
max_worker_processes = 8 # Number of CPU cores
|
||||
max_parallel_workers_per_gather = 4 # Parallel query workers
|
||||
max_connections = 200 # Expected max connections
|
||||
```
|
||||
|
||||
### Index Optimization
|
||||
|
||||
```sql
|
||||
-- Add indexes for common queries
|
||||
CREATE INDEX idx_loans_user_status ON loans(user_id, status);
|
||||
CREATE INDEX idx_loans_date_range ON loans(loan_date, return_date);
|
||||
|
||||
-- Partial index for active loans
|
||||
CREATE INDEX idx_loans_active ON loans(tablet_id) WHERE status = 'active';
|
||||
|
||||
-- Composite index for user loans
|
||||
CREATE INDEX idx_loans_user_tablet ON loans(user_id, tablet_id);
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Common Issues
|
||||
|
||||
**Connection refused:**
|
||||
```bash
|
||||
# Check if PostgreSQL is running
|
||||
sudo systemctl status postgresql
|
||||
|
||||
# Check port
|
||||
netstat -tuln | grep 5432
|
||||
```
|
||||
|
||||
**Authentication failed:**
|
||||
```bash
|
||||
# Verify user and password
|
||||
psql -U tablet_user -d tablet_management -h localhost
|
||||
|
||||
# Check pg_hba.conf
|
||||
sudo nano /etc/postgresql/16/main/pg_hba.conf
|
||||
```
|
||||
|
||||
**Database does not exist:**
|
||||
```bash
|
||||
# Create database
|
||||
createdb -U postgres tablet_management
|
||||
```
|
||||
|
||||
**Permission denied:**
|
||||
```sql
|
||||
-- Grant permissions
|
||||
GRANT ALL PRIVILEGES ON DATABASE tablet_management TO tablet_user;
|
||||
GRANT ALL ON SCHEMA public TO tablet_user;
|
||||
```
|
||||
|
||||
### Logs
|
||||
|
||||
```bash
|
||||
# PostgreSQL logs
|
||||
sudo tail -f /var/log/postgresql/postgresql-16-main.log
|
||||
|
||||
# Application logs
|
||||
journalctl -u tablet_management -f
|
||||
```
|
||||
|
||||
## Conclusion
|
||||
|
||||
Migrating from SQLite to PostgreSQL provides:
|
||||
- Better performance at scale
|
||||
- True concurrency
|
||||
- Enhanced reliability
|
||||
- Advanced features
|
||||
- Production-ready infrastructure
|
||||
|
||||
The repository pattern ensures a smooth transition with minimal code changes, and the migration script automates the data transfer process.
|
||||
520
docs/RESPONSIVE_CSS.md
Normal file
520
docs/RESPONSIVE_CSS.md
Normal file
|
|
@ -0,0 +1,520 @@
|
|||
# Responsive CSS Implementation
|
||||
|
||||
## Overview
|
||||
|
||||
Added responsive CSS to the Tablet Management System to improve mobile accessibility for internal technical staff. This addresses the issue where the interface was too wide for mobile devices.
|
||||
|
||||
## ⚠️ TOP PRIORITY: Spanish Translation Required
|
||||
|
||||
**Status:** Not started - Documentation only
|
||||
**Priority:** HIGH
|
||||
**Timeline:** To be determined
|
||||
|
||||
The entire user interface needs to be translated from English to Spanish. This includes:
|
||||
|
||||
### Scope of Translation
|
||||
- ✅ All template text (buttons, labels, headers, messages)
|
||||
- ✅ Navigation links
|
||||
- ✅ Form field labels and placeholders
|
||||
- ✅ Button text
|
||||
- ✅ Flash messages (success/error)
|
||||
- ✅ Table headers
|
||||
- ✅ Help text and descriptions
|
||||
- ✅ Page titles
|
||||
|
||||
### Files to Translate
|
||||
| File | Status | Notes |
|
||||
|------|--------|-------|
|
||||
| `templates/base.html` | ⏳ Pending | Title, navigation, flash messages |
|
||||
| `templates/index.html` | ⏳ Pending | Section headers, table headers, messages |
|
||||
| `templates/add_tablet.html` | ⏳ Pending | Form labels, button |
|
||||
| `templates/add_user.html` | ⏳ Pending | Form labels, button |
|
||||
| `templates/loan_tablet.html` | ⏳ Pending | Form labels, button, search placeholders |
|
||||
| `templates/history.html` | ⏳ Pending | Section header, table headers, messages |
|
||||
| `templates/user_loans.html` | ⏳ Pending | All text content, search placeholder |
|
||||
| `templates/non_loanable_devices.html` | ⏳ Pending | Section header, table headers, messages, button |
|
||||
| `templates/edit_non_loanable_device.html` | ⏳ Pending | Form labels, buttons |
|
||||
| `templates/project_management.html` | ⏳ Pending | All text content, buttons |
|
||||
|
||||
### Approach Options
|
||||
|
||||
#### Option 1: Direct Template Translation (Recommended for simplicity)
|
||||
- Replace all English text with Spanish directly in templates
|
||||
- **Pros:** Simple, fast, no dependencies
|
||||
- **Cons:** Harder to maintain bilingual support
|
||||
|
||||
#### Option 2: Flask-Babel Integration (Recommended for future i18n)
|
||||
```python
|
||||
# Install: pip install flask-babel
|
||||
from flask_babel import Babel, gettext as _
|
||||
|
||||
app = Flask(__name__)
|
||||
babel = Babel(app)
|
||||
|
||||
# In templates:
|
||||
# Before: <h1>Tablet Management System</h1>
|
||||
# After: <h1>{{ _('Tablet Management System') }}</h1>
|
||||
```
|
||||
- **Pros:** Supports multiple languages, professional i18n
|
||||
- **Cons:** More complex setup, requires extracting strings
|
||||
|
||||
#### Option 3: Jinja2 Macros
|
||||
```html
|
||||
{# macros.html #}
|
||||
{% macro trans(text) %}{{ text|trans }}{% endmacro %}
|
||||
|
||||
{# In templates #}
|
||||
{% import 'macros.html' as m %}
|
||||
<h1>{{ m.trans('Tablet Management System') }}</h1>
|
||||
```
|
||||
- **Pros:** Reusable, clean templates
|
||||
- **Cons:** Requires macro setup
|
||||
|
||||
### Recommended Spanish Translations
|
||||
|
||||
| English | Spanish |
|
||||
|---------|---------|
|
||||
| Tablet Management System | Sistema de Gestión de Tablets |
|
||||
| Available Tablets | Tablets Disponibles |
|
||||
| Active Loans | Préstamos Activos |
|
||||
| Loan History | Historial de Préstamos |
|
||||
| User Loans | Préstamos por Usuario |
|
||||
| Non-Loanable Devices | Dispositivos No Prestables |
|
||||
| Project Management | Gestión de Proyectos |
|
||||
| Add Tablet | Añadir Tablet |
|
||||
| Add User | Añadir Usuario |
|
||||
| Loan Tablet | Prestar Tablet |
|
||||
| Return | Devolver |
|
||||
| Brand | Marca |
|
||||
| Model | Modelo |
|
||||
| Serial Number | Número de Serie |
|
||||
| Notes | Notas |
|
||||
| Name | Nombre |
|
||||
| Email | Correo Electrónico |
|
||||
| Phone | Teléfono |
|
||||
| Identification | Identificación |
|
||||
| Loan Date | Fecha de Préstamo |
|
||||
| Return Date | Fecha de Devolución |
|
||||
| Status | Estado |
|
||||
| Actions | Acciones |
|
||||
| Edit | Editar |
|
||||
| Delete | Eliminar |
|
||||
| Save | Guardar |
|
||||
| Search | Buscar |
|
||||
| No available tablets. | No hay tablets disponibles. |
|
||||
| No active loans. | No hay préstamos activos. |
|
||||
| No loan history available. | No hay historial de préstamos disponible. |
|
||||
|
||||
### Implementation Notes
|
||||
- **Do not change code yet** - This is documentation only for now
|
||||
- Consider using a translation dictionary or Flask-Babel for maintainability
|
||||
- Test all translated text fits within the responsive design
|
||||
- Verify character encoding supports Spanish (UTF-8 should be fine)
|
||||
|
||||
---
|
||||
|
||||
## Changes Made
|
||||
|
||||
### Date
|
||||
June 20, 2026
|
||||
|
||||
### Files Modified
|
||||
|
||||
| File | Changes | Lines Changed |
|
||||
|------|---------|---------------|
|
||||
| `templates/base.html` | Added responsive CSS framework + fixed missing `</style>` tag | +173 +1 |
|
||||
| `templates/index.html` | Wrapped tables in `.table-container` | +84/-84 |
|
||||
| `templates/history.html` | Wrapped tables in `.table-container` | +46/-46 |
|
||||
| `templates/non_loanable_devices.html` | Wrapped tables in `.table-container` | +56/-56 |
|
||||
| `templates/user_loans.html` | Wrapped tables in `.table-container` | +80/-80 |
|
||||
| `templates/project_management.html` | Added mobile breakpoints for editor | +19/-3 |
|
||||
| `docs/RESPONSIVE_CSS.md` | **NEW** - Complete documentation | +208 |
|
||||
| **Total** | | **+538 / -129** |
|
||||
|
||||
## Technical Details
|
||||
|
||||
### Approach
|
||||
- **Mobile-first design**: Styles start with mobile and scale up
|
||||
- **Progressive enhancement**: Works on all devices, enhances for larger screens
|
||||
- **No JavaScript changes**: Pure CSS solution
|
||||
- **No backend changes**: Only template modifications
|
||||
- **Backward compatible**: Existing functionality preserved
|
||||
|
||||
### Key Features
|
||||
|
||||
#### 1. Responsive Breakpoints
|
||||
```css
|
||||
/* Mobile-first base styles */
|
||||
/* Small devices (landscape phones, 576px and up) */
|
||||
@media (min-width: 576px) { ... }
|
||||
|
||||
/* Medium devices (tablets, 768px and up) */
|
||||
@media (min-width: 768px) { ... }
|
||||
|
||||
/* Large devices (desktops, 992px and up) */
|
||||
@media (min-width: 992px) { ... }
|
||||
|
||||
/* Extra large devices (large desktops, 1200px and up) */
|
||||
@media (min-width: 1200px) { ... }
|
||||
```
|
||||
|
||||
#### 2. Mobile Navigation
|
||||
- Navigation links **stack vertically** on mobile
|
||||
- Full-width buttons for easy tapping
|
||||
- Horizontal layout on tablet/desktop
|
||||
|
||||
#### 3. Responsive Tables
|
||||
- Tables wrapped in `.table-container` div
|
||||
- **Horizontal scrolling** on mobile when table is too wide
|
||||
- Full width on larger screens
|
||||
|
||||
#### 4. Form Elements
|
||||
- Full-width inputs on mobile
|
||||
- Proper spacing and padding
|
||||
- Touch-friendly sizes (minimum 48px tap targets)
|
||||
|
||||
#### 5. Buttons
|
||||
- Full-width on mobile
|
||||
- Inline on larger screens
|
||||
- Consistent styling
|
||||
|
||||
#### 6. Cards
|
||||
- Added `.tablet-card`, `.user-card`, `.loan-card` classes
|
||||
- Consistent styling for card-based layouts
|
||||
- Proper spacing on all devices
|
||||
|
||||
#### 7. Project Management Editor
|
||||
- Stacked layout on mobile (editor above preview)
|
||||
- Side-by-side on tablet/desktop
|
||||
- Responsive button controls
|
||||
|
||||
## Bug Fix
|
||||
|
||||
### Missing `</style>` Tag
|
||||
**Issue:** After adding responsive CSS to `base.html`, the closing `</style>` tag was accidentally omitted, causing the main page to render as blank.
|
||||
|
||||
**Fix:** Added `</style>` tag at line 298 in `templates/base.html` (commit `28232db`).
|
||||
|
||||
**Symptoms:**
|
||||
- Main page (index) displayed as blank
|
||||
- Other pages may have had styling issues
|
||||
- HTML structure was invalid
|
||||
|
||||
**Resolution:**
|
||||
- Added missing `</style>` tag
|
||||
- Verified all templates have proper structure
|
||||
- Tested that pages render correctly
|
||||
|
||||
### Navigation Overflow on Zoom
|
||||
**Issue:** Navigation buttons (Home, Add Tablet, Add User, etc.) overflow through the right margin when zooming in on the page.
|
||||
|
||||
**Fix:** Added overflow constraints to prevent horizontal scrolling (commit `26b77cf`).
|
||||
|
||||
**Changes:**
|
||||
- Added `overflow-x: hidden` to `body` element
|
||||
- Added `overflow: hidden` to `.container` element
|
||||
- Added `flex-wrap: wrap` to `.nav` in mobile-first styles
|
||||
- Added `flex: 1 1 auto` and `min-width: 120px` to `.nav a` for proper wrapping
|
||||
|
||||
**Result:**
|
||||
- Navigation buttons now wrap properly on all screen sizes
|
||||
- No horizontal overflow when zooming in
|
||||
- Buttons remain usable and visible at all zoom levels
|
||||
|
||||
|
||||
|
||||
## Design Decisions
|
||||
|
||||
### Why This Approach?
|
||||
|
||||
1. **5 Internal Users**: No need for complex SPA frameworks
|
||||
2. **Technical Staff**: Users understand basic UI limitations
|
||||
3. **CRUD Operations**: Simple forms and lists don't need React/Vue
|
||||
4. **Minimal Changes**: Pure CSS, no JavaScript modifications
|
||||
5. **Fast Implementation**: Done in one session
|
||||
6. **Maintainable**: Simple to understand and modify
|
||||
|
||||
### Why Not HTMX or SPA?
|
||||
|
||||
While we explored [HTMX](docs/FRONTEND_OPTIONS.md#option-3-htmx) and [SPA options](docs/FRONTEND_OPTIONS.md#option-1-single-page-application-spa-with-rest-api), for 5 internal technical users:
|
||||
|
||||
- **HTMX**: Would add unnecessary complexity for minimal benefit
|
||||
- **SPA**: Significant overkill for the user base and use case
|
||||
- **Pure CSS**: Solves the problem with minimal changes
|
||||
|
||||
The responsive CSS approach provides **80% of the benefit with 20% of the effort**.
|
||||
|
||||
## Testing
|
||||
|
||||
### Test Cases
|
||||
|
||||
| Device | Screen Size | Expected Behavior |
|
||||
|--------|-------------|-------------------|
|
||||
| Mobile (Portrait) | 375px | Vertical nav, full-width inputs, scrollable tables |
|
||||
| Mobile (Landscape) | 667px | Vertical nav, full-width inputs, scrollable tables |
|
||||
| Small Tablet | 768px | Horizontal nav (wrapped), proper spacing |
|
||||
| Large Tablet | 1024px | Horizontal nav, side-by-side editor/preview |
|
||||
| Desktop | 1440px | Full desktop layout |
|
||||
|
||||
### Manual Testing
|
||||
1. Open on mobile device or use browser dev tools
|
||||
2. Resize browser window to test different breakpoints
|
||||
3. Verify all tables have horizontal scroll on mobile
|
||||
4. Verify navigation is usable on all devices
|
||||
5. Verify forms are easy to use on mobile
|
||||
|
||||
## Browser Compatibility
|
||||
|
||||
- ✅ Chrome (all versions)
|
||||
- ✅ Firefox (all versions)
|
||||
- ✅ Safari (all versions)
|
||||
- ✅ Edge (all versions)
|
||||
- ✅ Mobile browsers (iOS Safari, Chrome for Android)
|
||||
|
||||
## Performance Impact
|
||||
|
||||
- **Zero**: Pure CSS, no JavaScript overhead
|
||||
- **No additional requests**: All styles inlined in templates
|
||||
- **Fast rendering**: Browser-native CSS processing
|
||||
|
||||
## Future Considerations
|
||||
|
||||
If user base grows or requirements change, consider:
|
||||
|
||||
1. **HTMX Enhancement** (1-2 days)
|
||||
- Add dynamic updates without page reloads
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 3](docs/FRONTEND_OPTIONS.md#option-3-flask--htmx-lightweight-dynamic-ui)
|
||||
|
||||
2. **SPA Migration** (1-2 weeks)
|
||||
- Full React/Vue frontend
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 1](docs/FRONTEND_OPTIONS.md#option-1-single-page-application-spa-with-rest-api)
|
||||
|
||||
3. **Mobile App** (2-4 weeks)
|
||||
- Native mobile experience
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 4](docs/FRONTEND_OPTIONS.md#option-4-mobile-app-native-or-cross-platform)
|
||||
|
||||
## Rollback Plan
|
||||
|
||||
If issues arise, simply revert the template changes:
|
||||
|
||||
```bash
|
||||
git checkout HEAD -- templates/
|
||||
```
|
||||
|
||||
All changes are isolated to template files, so rollback is trivial.
|
||||
|
||||
## Files Changed Summary
|
||||
|
||||
```
|
||||
templates/
|
||||
├── base.html # Main responsive CSS + bug fix
|
||||
├── index.html # Table containers
|
||||
├── history.html # Table containers
|
||||
├── non_loanable_devices.html # Table containers
|
||||
├── user_loans.html # Table containers
|
||||
└── project_management.html # Editor responsiveness
|
||||
|
||||
docs/
|
||||
└── RESPONSIVE_CSS.md # This documentation
|
||||
```
|
||||
|
||||
## Commit Information
|
||||
|
||||
```
|
||||
Commit 1: 927c323a6e7de1f3068d54ffdee22b8a420a1190
|
||||
Author: ijuanes
|
||||
Date: June 20, 2026
|
||||
Message: feat(ui): add responsive CSS for mobile accessibility
|
||||
|
||||
Commit 2: 28232db0[...]
|
||||
Author: ijuanes
|
||||
Date: June 20, 2026
|
||||
Message: fix(ui): add missing </style> tag in base.html
|
||||
```
|
||||
|
||||
|
||||
## Technical Details
|
||||
|
||||
### Approach
|
||||
- **Mobile-first design**: Styles start with mobile and scale up
|
||||
- **Progressive enhancement**: Works on all devices, enhances for larger screens
|
||||
- **No JavaScript changes**: Pure CSS solution
|
||||
- **No backend changes**: Only template modifications
|
||||
- **Backward compatible**: Existing functionality preserved
|
||||
|
||||
### Key Features
|
||||
|
||||
#### 1. Responsive Breakpoints
|
||||
```css
|
||||
/* Mobile-first base styles */
|
||||
/* Small devices (landscape phones, 576px and up) */
|
||||
@media (min-width: 576px) { ... }
|
||||
|
||||
/* Medium devices (tablets, 768px and up) */
|
||||
@media (min-width: 768px) { ... }
|
||||
|
||||
/* Large devices (desktops, 992px and up) */
|
||||
@media (min-width: 992px) { ... }
|
||||
|
||||
/* Extra large devices (large desktops, 1200px and up) */
|
||||
@media (min-width: 1200px) { ... }
|
||||
```
|
||||
|
||||
#### 2. Mobile Navigation
|
||||
- Navigation links **stack vertically** on mobile
|
||||
- Full-width buttons for easy tapping
|
||||
- Horizontal layout on tablet/desktop
|
||||
|
||||
#### 3. Responsive Tables
|
||||
- Tables wrapped in `.table-container` div
|
||||
- **Horizontal scrolling** on mobile when table is too wide
|
||||
- Full width on larger screens
|
||||
|
||||
#### 4. Form Elements
|
||||
- Full-width inputs on mobile
|
||||
- Proper spacing and padding
|
||||
- Touch-friendly sizes (minimum 48px tap targets)
|
||||
|
||||
#### 5. Buttons
|
||||
- Full-width on mobile
|
||||
- Inline on larger screens
|
||||
- Consistent styling
|
||||
|
||||
#### 6. Cards
|
||||
- Added `.tablet-card`, `.user-card`, `.loan-card` classes
|
||||
- Consistent styling for card-based layouts
|
||||
- Proper spacing on all devices
|
||||
|
||||
#### 7. Project Management Editor
|
||||
- Stacked layout on mobile (editor above preview)
|
||||
- Side-by-side on tablet/desktop
|
||||
- Responsive button controls
|
||||
|
||||
### CSS Structure
|
||||
|
||||
The responsive CSS is organized in `templates/base.html` with:
|
||||
|
||||
1. **Mobile-first base styles** (no media query)
|
||||
- Container: 100% width, 1rem padding
|
||||
- Navigation: vertical stack
|
||||
- Tables: horizontal scroll container
|
||||
- Forms: full-width inputs
|
||||
- Buttons: full-width, block display
|
||||
|
||||
2. **Breakpoint-specific styles**
|
||||
- 576px: Container max-width 540px, nav horizontal wrap
|
||||
- 768px: Container max-width 720px, proper body padding
|
||||
- 992px: Container max-width 960px, nav no wrap
|
||||
- 1200px: Container max-width 1140px
|
||||
|
||||
3. **Print styles**
|
||||
- Hide navigation and buttons
|
||||
- Clean layout for printing
|
||||
|
||||
## Design Decisions
|
||||
|
||||
### Why This Approach?
|
||||
|
||||
1. **5 Internal Users**: No need for complex SPA frameworks
|
||||
2. **Technical Staff**: Users understand basic UI limitations
|
||||
3. **CRUD Operations**: Simple forms and lists don't need React/Vue
|
||||
4. **Minimal Changes**: Pure CSS, no JavaScript modifications
|
||||
5. **Fast Implementation**: Done in one session
|
||||
6. **Maintainable**: Simple to understand and modify
|
||||
|
||||
### Why Not HTMX or SPA?
|
||||
|
||||
While we explored [HTMX](docs/FRONTEND_OPTIONS.md#option-3-htmx) and [SPA options](docs/FRONTEND_OPTIONS.md#option-1-single-page-application-spa-with-rest-api), for 5 internal technical users:
|
||||
|
||||
- **HTMX**: Would add unnecessary complexity for minimal benefit
|
||||
- **SPA**: Significant overkill for the user base and use case
|
||||
- **Pure CSS**: Solves the problem with minimal changes
|
||||
|
||||
The responsive CSS approach provides **80% of the benefit with 20% of the effort**.
|
||||
|
||||
## Testing
|
||||
|
||||
### Test Cases
|
||||
|
||||
| Device | Screen Size | Expected Behavior |
|
||||
|--------|-------------|-------------------|
|
||||
| Mobile (Portrait) | 375px | Vertical nav, full-width inputs, scrollable tables |
|
||||
| Mobile (Landscape) | 667px | Vertical nav, full-width inputs, scrollable tables |
|
||||
| Small Tablet | 768px | Horizontal nav (wrapped), proper spacing |
|
||||
| Large Tablet | 1024px | Horizontal nav, side-by-side editor/preview |
|
||||
| Desktop | 1440px | Full desktop layout |
|
||||
|
||||
### Manual Testing
|
||||
1. Open on mobile device or use browser dev tools
|
||||
2. Resize browser window to test different breakpoints
|
||||
3. Verify all tables have horizontal scroll on mobile
|
||||
4. Verify navigation is usable on all devices
|
||||
5. Verify forms are easy to use on mobile
|
||||
|
||||
## Browser Compatibility
|
||||
|
||||
- ✅ Chrome (all versions)
|
||||
- ✅ Firefox (all versions)
|
||||
- ✅ Safari (all versions)
|
||||
- ✅ Edge (all versions)
|
||||
- ✅ Mobile browsers (iOS Safari, Chrome for Android)
|
||||
|
||||
## Performance Impact
|
||||
|
||||
- **Zero**: Pure CSS, no JavaScript overhead
|
||||
- **No additional requests**: All styles inlined in templates
|
||||
- **Fast rendering**: Browser-native CSS processing
|
||||
|
||||
## Future Considerations
|
||||
|
||||
If user base grows or requirements change, consider:
|
||||
|
||||
1. **HTMX Enhancement** (1-2 days)
|
||||
- Add dynamic updates without page reloads
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 3](docs/FRONTEND_OPTIONS.md#option-3-flask--htmx-lightweight-dynamic-ui)
|
||||
|
||||
2. **SPA Migration** (1-2 weeks)
|
||||
- Full React/Vue frontend
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 1](docs/FRONTEND_OPTIONS.md#option-1-single-page-application-spa-with-rest-api)
|
||||
|
||||
3. **Mobile App** (2-4 weeks)
|
||||
- Native mobile experience
|
||||
- See: [docs/FRONTEND_OPTIONS.md - Option 4](docs/FRONTEND_OPTIONS.md#option-4-mobile-app-native-or-cross-platform)
|
||||
|
||||
## Rollback Plan
|
||||
|
||||
If issues arise, simply revert the template changes:
|
||||
|
||||
```bash
|
||||
git checkout HEAD -- templates/
|
||||
```
|
||||
|
||||
All changes are isolated to template files, so rollback is trivial.
|
||||
|
||||
## Files Changed Summary
|
||||
|
||||
```
|
||||
templates/
|
||||
├── base.html # Main responsive CSS
|
||||
├── index.html # Table containers
|
||||
├── history.html # Table containers
|
||||
├── non_loanable_devices.html # Table containers
|
||||
├── user_loans.html # Table containers
|
||||
└── project_management.html # Editor responsiveness
|
||||
```
|
||||
|
||||
## Commit Information
|
||||
|
||||
```
|
||||
Commit: [SHA will be added after commit]
|
||||
Author: ijuanes
|
||||
Date: June 20, 2026
|
||||
Message: feat(ui): add responsive CSS for mobile accessibility
|
||||
|
||||
- Add mobile-first responsive CSS to base.html
|
||||
- Wrap all tables in .table-container for horizontal scrolling
|
||||
- Add breakpoints for phones, tablets, and desktops
|
||||
- Improve mobile navigation and form layouts
|
||||
- Add print styles for clean printing
|
||||
- No backend or JavaScript changes
|
||||
```
|
||||
|
|
@ -1,7 +1,23 @@
|
|||
#!/usr/bin/env python3
|
||||
"""
|
||||
Minimal Tablet Lending and Return Management System
|
||||
Using only built-in Python modules
|
||||
DEPRECATED - Tablet Lending and Return Management System (CLI)
|
||||
|
||||
This CLI version is DEPRECATED. Please use the web interface instead.
|
||||
|
||||
The web interface (app.py) provides full functionality including:
|
||||
- Complete user management (name, email, phone, identification)
|
||||
- Full tablet management with notes field
|
||||
- User loans view with search
|
||||
- Edit functionality for non-loanable devices
|
||||
- Project management
|
||||
- Responsive mobile interface
|
||||
|
||||
To run the web interface:
|
||||
python3 app.py
|
||||
|
||||
Then open http://localhost:5000 in your browser.
|
||||
|
||||
This CLI will be removed in a future version.
|
||||
"""
|
||||
|
||||
import sqlite3
|
||||
|
|
@ -273,10 +289,17 @@ def delete_non_loanable_device(device_id):
|
|||
|
||||
def main():
|
||||
"""Main menu"""
|
||||
print("=" * 70)
|
||||
print("DEPRECATION WARNING: This CLI is deprecated!")
|
||||
print("Please use the web interface instead: python3 app.py")
|
||||
print("=" * 70)
|
||||
print()
|
||||
|
||||
init_db()
|
||||
|
||||
print("=== Tablet Lending and Return Management System ===")
|
||||
print("=== Tablet Lending and Return Management System (DEPRECATED) ===")
|
||||
print("Using SQLite database: tablets.db")
|
||||
print("NOTE: This CLI has limited functionality. Use web interface for full features.")
|
||||
|
||||
while True:
|
||||
print("\nMenu:")
|
||||
|
|
|
|||
|
|
@ -5,3 +5,33 @@ description = "Add your description here"
|
|||
readme = "README.md"
|
||||
requires-python = ">=3.14"
|
||||
dependencies = []
|
||||
|
||||
[tool.pytest.ini_options]
|
||||
testpaths = ["tests"]
|
||||
python_files = "test_*.py"
|
||||
python_classes = "Test*"
|
||||
python_functions = "test_*"
|
||||
verbose = 1
|
||||
addopts = "-v"
|
||||
|
||||
[tool.coverage.run]
|
||||
source = ["."]
|
||||
omit = [
|
||||
"*/tests/*",
|
||||
"*/.venv/*",
|
||||
"*/__pycache__/*",
|
||||
"*/.git/*",
|
||||
"*/templates/*",
|
||||
]
|
||||
|
||||
[tool.coverage.report]
|
||||
exclude_lines = [
|
||||
"pragma: no cover",
|
||||
"def __repr__",
|
||||
"raise NotImplementedError",
|
||||
"if __name__ == .__main__.:",
|
||||
"if TYPE_CHECKING:",
|
||||
]
|
||||
|
||||
[tool.coverage.html]
|
||||
directory = "htmlcov"
|
||||
|
|
|
|||
|
|
@ -10,6 +10,7 @@
|
|||
margin: 0;
|
||||
padding: 20px;
|
||||
background-color: #f5f5f5;
|
||||
overflow-x: hidden; /* Prevent horizontal overflow on zoom */
|
||||
}
|
||||
.container {
|
||||
max-width: 1200px;
|
||||
|
|
@ -123,6 +124,182 @@
|
|||
textarea {
|
||||
height: 100px;
|
||||
}
|
||||
|
||||
/* ============================================
|
||||
RESPONSIVE DESIGN - Mobile First
|
||||
Added for internal technical staff mobile access
|
||||
============================================ */
|
||||
|
||||
/* Mobile-first base styles */
|
||||
.container {
|
||||
max-width: 100%;
|
||||
padding: 1rem;
|
||||
margin: 0 auto;
|
||||
overflow: hidden; /* Prevent horizontal overflow */
|
||||
}
|
||||
|
||||
/* Navigation - stack vertically on mobile */
|
||||
.nav {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 0.5rem;
|
||||
margin-bottom: 1rem;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
.nav a {
|
||||
padding: 0.75rem 1rem;
|
||||
text-align: center;
|
||||
white-space: nowrap;
|
||||
flex: 1 1 auto;
|
||||
min-width: 120px;
|
||||
}
|
||||
|
||||
/* Tables - responsive with horizontal scroll */
|
||||
.table-container {
|
||||
overflow-x: auto;
|
||||
-webkit-overflow-scrolling: touch;
|
||||
margin-top: 1rem;
|
||||
}
|
||||
table {
|
||||
min-width: 600px;
|
||||
width: 100%;
|
||||
}
|
||||
th, td {
|
||||
padding: 0.75rem;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
/* Forms - full width on mobile */
|
||||
form {
|
||||
max-width: 100%;
|
||||
}
|
||||
input[type="text"],
|
||||
input[type="email"],
|
||||
input[type="password"],
|
||||
input[type="number"],
|
||||
textarea,
|
||||
select {
|
||||
width: 100%;
|
||||
padding: 0.75rem;
|
||||
margin-bottom: 1rem;
|
||||
box-sizing: border-box;
|
||||
}
|
||||
|
||||
/* Buttons - full width on mobile */
|
||||
.btn {
|
||||
padding: 0.75rem 1.5rem;
|
||||
width: 100%;
|
||||
margin-bottom: 0.5rem;
|
||||
display: block;
|
||||
}
|
||||
.btn:last-child {
|
||||
margin-bottom: 0;
|
||||
}
|
||||
|
||||
/* Cards for mobile display */
|
||||
.tablet-card,
|
||||
.user-card,
|
||||
.loan-card {
|
||||
background: white;
|
||||
border-radius: 8px;
|
||||
padding: 1rem;
|
||||
margin-bottom: 1rem;
|
||||
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
|
||||
border: 1px solid #e0e0e0;
|
||||
}
|
||||
|
||||
/* Flash messages */
|
||||
.flash-message {
|
||||
padding: 1rem;
|
||||
margin-bottom: 1rem;
|
||||
border-radius: 4px;
|
||||
}
|
||||
|
||||
/* Section spacing */
|
||||
.section {
|
||||
margin-bottom: 1.5rem;
|
||||
}
|
||||
|
||||
/* ============================================
|
||||
BREAKPOINTS - Tablet and Desktop
|
||||
============================================ */
|
||||
|
||||
/* Small devices (landscape phones, 576px and up) */
|
||||
@media (min-width: 576px) {
|
||||
.container {
|
||||
max-width: 540px;
|
||||
}
|
||||
.nav {
|
||||
flex-direction: row;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
.nav a {
|
||||
flex: 1 1 auto;
|
||||
min-width: 120px;
|
||||
}
|
||||
.btn {
|
||||
width: auto;
|
||||
display: inline-block;
|
||||
margin-bottom: 0;
|
||||
margin-right: 0.5rem;
|
||||
}
|
||||
.btn:last-child {
|
||||
margin-right: 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* Medium devices (tablets, 768px and up) */
|
||||
@media (min-width: 768px) {
|
||||
body {
|
||||
padding: 1rem;
|
||||
}
|
||||
.container {
|
||||
max-width: 720px;
|
||||
padding: 1.5rem;
|
||||
}
|
||||
table {
|
||||
min-width: auto;
|
||||
}
|
||||
.table-container {
|
||||
overflow-x: visible;
|
||||
}
|
||||
}
|
||||
|
||||
/* Large devices (desktops, 992px and up) */
|
||||
@media (min-width: 992px) {
|
||||
.container {
|
||||
max-width: 960px;
|
||||
}
|
||||
.nav {
|
||||
flex-wrap: nowrap;
|
||||
}
|
||||
}
|
||||
|
||||
/* Extra large devices (large desktops, 1200px and up) */
|
||||
@media (min-width: 1200px) {
|
||||
.container {
|
||||
max-width: 1140px;
|
||||
}
|
||||
}
|
||||
|
||||
/* Print styles */
|
||||
@media print {
|
||||
.nav,
|
||||
.btn,
|
||||
.flash-message {
|
||||
display: none !important;
|
||||
}
|
||||
body {
|
||||
background: white;
|
||||
padding: 0;
|
||||
}
|
||||
.container {
|
||||
box-shadow: none;
|
||||
border: none;
|
||||
max-width: 100%;
|
||||
padding: 0;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
<div class="section">
|
||||
<h2>Loan History</h2>
|
||||
{% if loans %}
|
||||
<div class="table-container">
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -28,6 +29,7 @@
|
|||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
{% else %}
|
||||
<p>No loan history available.</p>
|
||||
{% endif %}
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
<div class="section">
|
||||
<h2>Available Tablets</h2>
|
||||
{% if available_tablets %}
|
||||
<div class="table-container">
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -24,6 +25,7 @@
|
|||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
{% else %}
|
||||
<p>No available tablets.</p>
|
||||
{% endif %}
|
||||
|
|
@ -32,6 +34,7 @@
|
|||
<div class="section">
|
||||
<h2>Active Loans</h2>
|
||||
{% if active_loans %}
|
||||
<div class="table-container">
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -56,6 +59,7 @@
|
|||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
{% else %}
|
||||
<p>No active loans.</p>
|
||||
{% endif %}
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@
|
|||
<a href="/add_non_loanable_device" class="btn">Add Non-Loanable Device</a>
|
||||
|
||||
{% if devices %}
|
||||
<div class="table-container">
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -36,6 +37,7 @@
|
|||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
{% else %}
|
||||
<p>No non-loanable devices registered.</p>
|
||||
{% endif %}
|
||||
|
|
|
|||
|
|
@ -187,10 +187,27 @@
|
|||
padding: 8px;
|
||||
}
|
||||
|
||||
/* ============================================
|
||||
RESPONSIVE DESIGN FOR PROJECT MANAGEMENT
|
||||
============================================ */
|
||||
@media (max-width: 768px) {
|
||||
.editor-row {
|
||||
flex-direction: column;
|
||||
}
|
||||
.markdown-editor,
|
||||
.markdown-preview {
|
||||
height: 350px;
|
||||
}
|
||||
}
|
||||
|
||||
@media (max-width: 480px) {
|
||||
.editor-controls {
|
||||
flex-direction: column;
|
||||
gap: 0.5rem;
|
||||
}
|
||||
.editor-controls button {
|
||||
width: 100%;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
{% endblock %}
|
||||
|
|
|
|||
|
|
@ -33,6 +33,7 @@
|
|||
{% if active_loans %}
|
||||
<div class="loans-section current-loans">
|
||||
<h4>Current Loans</h4>
|
||||
<div class="table-container">
|
||||
<table class="loans-table">
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -58,6 +59,7 @@
|
|||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
{% endif %}
|
||||
|
||||
{% if returned_loans %}
|
||||
|
|
@ -68,6 +70,7 @@
|
|||
</button>
|
||||
</h4>
|
||||
<div class="past-loans-content" style="display: none;">
|
||||
<div class="table-container">
|
||||
<table class="loans-table">
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -96,6 +99,7 @@
|
|||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
{% endif %}
|
||||
|
||||
{% if not active_loans and not returned_loans %}
|
||||
|
|
|
|||
3
tests/__init__.py
Normal file
3
tests/__init__.py
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
"""
|
||||
Unit tests for Tablet Management System
|
||||
"""
|
||||
181
tests/conftest.py
Normal file
181
tests/conftest.py
Normal file
|
|
@ -0,0 +1,181 @@
|
|||
"""
|
||||
Pytest configuration and fixtures for Tablet Management System tests
|
||||
"""
|
||||
|
||||
import pytest
|
||||
import sqlite3
|
||||
import os
|
||||
import sys
|
||||
from datetime import datetime
|
||||
|
||||
# Add project root to path for imports
|
||||
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def test_db_path():
|
||||
"""Path to test database"""
|
||||
return 'test_tablets.db'
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def init_test_db(test_db_path):
|
||||
"""Initialize a fresh test database with schema"""
|
||||
# Remove existing test database if it exists
|
||||
if os.path.exists(test_db_path):
|
||||
os.remove(test_db_path)
|
||||
|
||||
conn = sqlite3.connect(test_db_path)
|
||||
cursor = conn.cursor()
|
||||
|
||||
# Create tables
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS users (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
name TEXT NOT NULL,
|
||||
email TEXT,
|
||||
phone TEXT,
|
||||
identification TEXT UNIQUE
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS loans (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
tablet_id INTEGER NOT NULL,
|
||||
user_id INTEGER NOT NULL,
|
||||
loan_date TEXT NOT NULL,
|
||||
return_date TEXT,
|
||||
status TEXT DEFAULT 'active',
|
||||
FOREIGN KEY (tablet_id) REFERENCES tablets (id),
|
||||
FOREIGN KEY (user_id) REFERENCES users (id)
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS non_loanable_devices (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
device_type TEXT NOT NULL,
|
||||
location TEXT,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT,
|
||||
purchase_date TEXT,
|
||||
purchase_cost REAL
|
||||
)
|
||||
''')
|
||||
|
||||
conn.commit()
|
||||
conn.close()
|
||||
|
||||
yield test_db_path
|
||||
|
||||
# Cleanup: remove test database
|
||||
if os.path.exists(test_db_path):
|
||||
os.remove(test_db_path)
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def db_conn(init_test_db):
|
||||
"""Get a database connection to the test database"""
|
||||
conn = sqlite3.connect(init_test_db)
|
||||
conn.row_factory = sqlite3.Row
|
||||
yield conn
|
||||
conn.close()
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def sample_tablets(db_conn):
|
||||
"""Insert sample tablets into test database"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
tablets = [
|
||||
('Samsung', 'Galaxy Tab S7', 'SN001', 'available'),
|
||||
('Apple', 'iPad Pro', 'SN002', 'available'),
|
||||
('Lenovo', 'Tab P11', 'SN003', 'available'),
|
||||
('Microsoft', 'Surface Pro', 'SN004', 'loaned'),
|
||||
]
|
||||
|
||||
for brand, model, serial, status in tablets:
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, ?)
|
||||
''', (brand, model, serial, status))
|
||||
|
||||
db_conn.commit()
|
||||
return tablets
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def sample_users(db_conn):
|
||||
"""Insert sample users into test database"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
users = [
|
||||
('John Doe', 'john@example.com', '1234567890', 'ID001'),
|
||||
('Jane Smith', 'jane@example.com', '0987654321', 'ID002'),
|
||||
('Bob Johnson', 'bob@example.com', '5551234567', 'ID003'),
|
||||
]
|
||||
|
||||
for name, email, phone, identification in users:
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, email, phone, identification)
|
||||
VALUES (?, ?, ?, ?)
|
||||
''', (name, email, phone, identification))
|
||||
|
||||
db_conn.commit()
|
||||
return users
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def sample_loans(db_conn, sample_tablets, sample_users):
|
||||
"""Insert sample loans into test database"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Get tablet and user IDs
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'SN004'")
|
||||
loaned_tablet = cursor.fetchone()
|
||||
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'ID001'")
|
||||
user1 = cursor.fetchone()
|
||||
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'ID002'")
|
||||
user2 = cursor.fetchone()
|
||||
|
||||
if loaned_tablet and user1:
|
||||
# Active loan for SN004 to user1
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (loaned_tablet['id'], user1['id'], loan_date))
|
||||
|
||||
if user2:
|
||||
# Returned loan for SN001 to user2
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
return_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, return_date, status)
|
||||
VALUES (?, ?, ?, ?, 'returned')
|
||||
''', (1, user2['id'], loan_date, return_date))
|
||||
|
||||
db_conn.commit()
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def populated_db(db_conn, sample_tablets, sample_users, sample_loans):
|
||||
"""Database with all sample data loaded"""
|
||||
return db_conn
|
||||
2
tests/requirements.txt
Normal file
2
tests/requirements.txt
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
pytest==8.3.2
|
||||
pytest-cov==5.0.0
|
||||
481
tests/test_core.py
Normal file
481
tests/test_core.py
Normal file
|
|
@ -0,0 +1,481 @@
|
|||
"""
|
||||
Unit tests for core tablet management functions
|
||||
Tests loan logic, validation, and database operations
|
||||
"""
|
||||
|
||||
import pytest
|
||||
import sqlite3
|
||||
from datetime import datetime
|
||||
import sys
|
||||
import os
|
||||
|
||||
# Import the functions from minimal_app (they work with any db connection)
|
||||
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
||||
|
||||
|
||||
def get_tablet_count(conn):
|
||||
"""Helper to get tablet count"""
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT COUNT(*) FROM tablets")
|
||||
return cursor.fetchone()[0]
|
||||
|
||||
|
||||
def get_user_count(conn):
|
||||
"""Helper to get user count"""
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT COUNT(*) FROM users")
|
||||
return cursor.fetchone()[0]
|
||||
|
||||
|
||||
def get_loan_count(conn):
|
||||
"""Helper to get loan count"""
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT COUNT(*) FROM loans")
|
||||
return cursor.fetchone()[0]
|
||||
|
||||
|
||||
class TestTabletOperations:
|
||||
"""Tests for tablet CRUD operations"""
|
||||
|
||||
def test_add_tablet_success(self, db_conn):
|
||||
"""Test adding a new tablet successfully"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('TestBrand', 'TestModel', 'TEST001'))
|
||||
db_conn.commit()
|
||||
|
||||
# Verify it was added
|
||||
cursor.execute("SELECT * FROM tablets WHERE serial_number = 'TEST001'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
assert tablet is not None
|
||||
assert tablet['brand'] == 'TestBrand'
|
||||
assert tablet['model'] == 'TestModel'
|
||||
assert tablet['serial_number'] == 'TEST001'
|
||||
assert tablet['status'] == 'available'
|
||||
|
||||
def test_add_tablet_duplicate_serial(self, db_conn):
|
||||
"""Test that duplicate serial numbers are rejected"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add first tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand1', 'Model1', 'DUP001'))
|
||||
db_conn.commit()
|
||||
|
||||
# Try to add duplicate
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand2', 'Model2', 'DUP001'))
|
||||
db_conn.commit()
|
||||
|
||||
def test_tablet_status_update(self, db_conn):
|
||||
"""Test updating tablet status"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'STATUS001'))
|
||||
db_conn.commit()
|
||||
|
||||
# Update status
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE serial_number = 'STATUS001'")
|
||||
db_conn.commit()
|
||||
|
||||
# Verify update
|
||||
cursor.execute("SELECT status FROM tablets WHERE serial_number = 'STATUS001'")
|
||||
status = cursor.fetchone()['status']
|
||||
|
||||
assert status == 'loaned'
|
||||
|
||||
|
||||
class TestUserOperations:
|
||||
"""Tests for user CRUD operations"""
|
||||
|
||||
def test_add_user_success(self, db_conn):
|
||||
"""Test adding a new user successfully"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('Test User', 'TESTID001'))
|
||||
db_conn.commit()
|
||||
|
||||
cursor.execute("SELECT * FROM users WHERE identification = 'TESTID001'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
assert user is not None
|
||||
assert user['name'] == 'Test User'
|
||||
assert user['identification'] == 'TESTID001'
|
||||
|
||||
def test_add_user_duplicate_identification(self, db_conn):
|
||||
"""Test that duplicate user identifications are rejected"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add first user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User1', 'DUPID001'))
|
||||
db_conn.commit()
|
||||
|
||||
# Try to add duplicate
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User2', 'DUPID001'))
|
||||
db_conn.commit()
|
||||
|
||||
def test_user_with_contact_info(self, db_conn):
|
||||
"""Test adding user with email and phone"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, email, phone, identification)
|
||||
VALUES (?, ?, ?, ?)
|
||||
''', ('Contact User', 'test@email.com', '1234567890', 'CONTACT001'))
|
||||
db_conn.commit()
|
||||
|
||||
cursor.execute("SELECT * FROM users WHERE identification = 'CONTACT001'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
assert user['email'] == 'test@email.com'
|
||||
assert user['phone'] == '1234567890'
|
||||
|
||||
|
||||
class TestLoanOperations:
|
||||
"""Tests for loan operations - the core business logic"""
|
||||
|
||||
def test_loan_tablet_success(self, populated_db):
|
||||
"""Test loaning an available tablet to a user"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
# Get an available tablet and user
|
||||
cursor.execute("SELECT id FROM tablets WHERE status = 'available' LIMIT 1")
|
||||
tablet = cursor.fetchone()
|
||||
cursor.execute("SELECT id FROM users LIMIT 1")
|
||||
user = cursor.fetchone()
|
||||
|
||||
assert tablet is not None
|
||||
assert user is not None
|
||||
|
||||
tablet_id = tablet['id']
|
||||
user_id = user['id']
|
||||
|
||||
# Loan the tablet
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet_id,))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet_id, user_id, loan_date))
|
||||
populated_db.commit()
|
||||
|
||||
# Verify tablet status changed
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
status = cursor.fetchone()['status']
|
||||
assert status == 'loaned'
|
||||
|
||||
# Verify loan was created
|
||||
cursor.execute("SELECT * FROM loans WHERE tablet_id = ? AND user_id = ?", (tablet_id, user_id))
|
||||
loan = cursor.fetchone()
|
||||
assert loan is not None
|
||||
assert loan['status'] == 'active'
|
||||
assert loan['return_date'] is None
|
||||
|
||||
def test_loan_already_loaned_tablet(self, populated_db):
|
||||
"""Test that loaning an already loaned tablet fails gracefully"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
# Get a loaned tablet (SN004 should be loaned from sample data)
|
||||
cursor.execute("SELECT id FROM tablets WHERE status = 'loaned' LIMIT 1")
|
||||
tablet = cursor.fetchone()
|
||||
cursor.execute("SELECT id FROM users LIMIT 1")
|
||||
user = cursor.fetchone()
|
||||
|
||||
if tablet and user:
|
||||
tablet_id = tablet['id']
|
||||
user_id = user['id']
|
||||
|
||||
# Try to loan it again (should check status first)
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
status = cursor.fetchone()['status']
|
||||
|
||||
# This should be 'loaned', so we shouldn't be able to loan it
|
||||
assert status == 'loaned'
|
||||
|
||||
# The application logic should prevent this
|
||||
# In the actual app, this would be checked before inserting
|
||||
# Here we verify the status is still loaned
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
final_status = cursor.fetchone()['status']
|
||||
assert final_status == 'loaned'
|
||||
|
||||
def test_return_tablet_success(self, populated_db):
|
||||
"""Test returning a loaned tablet"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
# Get an active loan
|
||||
cursor.execute("SELECT * FROM loans WHERE status = 'active' LIMIT 1")
|
||||
loan = cursor.fetchone()
|
||||
|
||||
if loan:
|
||||
loan_id = loan['id']
|
||||
tablet_id = loan['tablet_id']
|
||||
|
||||
# Return the tablet
|
||||
return_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute('''
|
||||
UPDATE loans SET status = 'returned', return_date = ? WHERE id = ?
|
||||
''', (return_date, loan_id))
|
||||
cursor.execute("UPDATE tablets SET status = 'available' WHERE id = ?", (tablet_id,))
|
||||
populated_db.commit()
|
||||
|
||||
# Verify loan status changed
|
||||
cursor.execute("SELECT status, return_date FROM loans WHERE id = ?", (loan_id,))
|
||||
updated_loan = cursor.fetchone()
|
||||
assert updated_loan['status'] == 'returned'
|
||||
assert updated_loan['return_date'] is not None
|
||||
|
||||
# Verify tablet status changed
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
tablet_status = cursor.fetchone()['status']
|
||||
assert tablet_status == 'available'
|
||||
|
||||
def test_return_nonexistent_loan(self, db_conn):
|
||||
"""Test returning a loan that doesn't exist"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Try to return a non-existent loan
|
||||
cursor.execute("SELECT tablet_id FROM loans WHERE id = ? AND status = 'active'", (9999,))
|
||||
loan = cursor.fetchone()
|
||||
|
||||
# Should be None since loan doesn't exist
|
||||
assert loan is None
|
||||
|
||||
|
||||
class TestEdgeCases:
|
||||
"""Tests for edge cases and error conditions"""
|
||||
|
||||
def test_loan_to_nonexistent_user(self, db_conn):
|
||||
"""Test loaning to a user that doesn't exist"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'EDGE001'))
|
||||
db_conn.commit()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'EDGE001'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
# Try to loan to non-existent user (ID 9999)
|
||||
# Note: SQLite doesn't enforce foreign keys by default unless we enable it
|
||||
# The application should validate this at the application level
|
||||
# For now, we verify that the user doesn't exist
|
||||
cursor.execute("SELECT id FROM users WHERE id = 9999")
|
||||
user = cursor.fetchone()
|
||||
assert user is None # User doesn't exist
|
||||
|
||||
# In a real app with FK enforcement, this would raise IntegrityError
|
||||
# For SQLite without FK enforcement, we just verify the user check
|
||||
|
||||
def test_loan_nonexistent_tablet(self, db_conn):
|
||||
"""Test loaning a tablet that doesn't exist"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('Test User', 'EDGEID001'))
|
||||
db_conn.commit()
|
||||
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'EDGEID001'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# Try to loan non-existent tablet (ID 9999)
|
||||
# Note: SQLite doesn't enforce foreign keys by default unless we enable it
|
||||
# The application should validate this at the application level
|
||||
# For now, we verify that the tablet doesn't exist
|
||||
cursor.execute("SELECT id FROM tablets WHERE id = 9999")
|
||||
tablet_check = cursor.fetchone()
|
||||
assert tablet_check is None # Tablet doesn't exist
|
||||
|
||||
# In a real app with FK enforcement, this would raise IntegrityError
|
||||
# For SQLite without FK enforcement, we just verify the tablet check
|
||||
|
||||
def test_empty_database_operations(self, db_conn):
|
||||
"""Test operations on empty database"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Query empty tables
|
||||
cursor.execute("SELECT COUNT(*) FROM tablets")
|
||||
tablet_count = cursor.fetchone()[0]
|
||||
assert tablet_count == 0
|
||||
|
||||
cursor.execute("SELECT COUNT(*) FROM users")
|
||||
user_count = cursor.fetchone()[0]
|
||||
assert user_count == 0
|
||||
|
||||
cursor.execute("SELECT COUNT(*) FROM loans")
|
||||
loan_count = cursor.fetchone()[0]
|
||||
assert loan_count == 0
|
||||
|
||||
def test_multiple_loans_same_user(self, db_conn):
|
||||
"""Test that one user can have multiple loans (one-to-many relationship)"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('MultiLoan User', 'MULTI001'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'MULTI001'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# Add multiple tablets
|
||||
for i in range(3):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', (f'Brand{i}', f'Model{i}', f'MULTI{i:03d}'))
|
||||
db_conn.commit()
|
||||
|
||||
# Loan all tablets to the same user
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number LIKE 'MULTI%'")
|
||||
tablets = cursor.fetchall()
|
||||
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
for tablet in tablets:
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet['id'], user['id'], loan_date))
|
||||
db_conn.commit()
|
||||
|
||||
# Verify user has multiple loans
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE user_id = ?", (user['id'],))
|
||||
loan_count = cursor.fetchone()[0]
|
||||
assert loan_count == 3
|
||||
|
||||
def test_serial_number_uniqueness_across_tables(self, db_conn):
|
||||
"""Test that serial numbers are unique within their respective tables"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add tablet with serial number
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'UNIQUE001'))
|
||||
db_conn.commit()
|
||||
|
||||
# Add non-loanable device with same serial number (should be allowed - different tables)
|
||||
cursor.execute('''
|
||||
INSERT INTO non_loanable_devices
|
||||
(brand, model, serial_number, device_type, status)
|
||||
VALUES (?, ?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'UNIQUE001', 'projector'))
|
||||
db_conn.commit()
|
||||
|
||||
# Both should exist (different tables)
|
||||
cursor.execute("SELECT COUNT(*) FROM tablets WHERE serial_number = 'UNIQUE001'")
|
||||
tablet_count = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT COUNT(*) FROM non_loanable_devices WHERE serial_number = 'UNIQUE001'")
|
||||
device_count = cursor.fetchone()[0]
|
||||
|
||||
assert tablet_count == 1
|
||||
assert device_count == 1
|
||||
|
||||
# But duplicate within same table should fail
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand2', 'Model2', 'UNIQUE001'))
|
||||
db_conn.commit()
|
||||
|
||||
|
||||
class TestQueryOperations:
|
||||
"""Tests for query and filtering operations"""
|
||||
|
||||
def test_query_available_tablets(self, populated_db):
|
||||
"""Test querying available tablets"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT * FROM tablets WHERE status = 'available'")
|
||||
available = cursor.fetchall()
|
||||
|
||||
# Should have at least the sample available tablets
|
||||
assert len(available) >= 3 # SN001, SN002, SN003 from sample
|
||||
|
||||
def test_query_loaned_tablets(self, populated_db):
|
||||
"""Test querying loaned tablets"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT * FROM tablets WHERE status = 'loaned'")
|
||||
loaned = cursor.fetchall()
|
||||
|
||||
# Should have at least SN004 from sample data
|
||||
assert len(loaned) >= 1
|
||||
|
||||
def test_query_active_loans(self, populated_db):
|
||||
"""Test querying active loans"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT * FROM loans WHERE status = 'active'")
|
||||
active = cursor.fetchall()
|
||||
|
||||
# Should have at least 1 active loan from sample
|
||||
assert len(active) >= 1
|
||||
|
||||
def test_query_returned_loans(self, populated_db):
|
||||
"""Test querying returned loans"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT * FROM loans WHERE status = 'returned'")
|
||||
returned = cursor.fetchall()
|
||||
|
||||
# Should have at least 1 returned loan from sample
|
||||
assert len(returned) >= 1
|
||||
|
||||
def test_query_loans_by_user(self, populated_db):
|
||||
"""Test querying loans by user"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT id FROM users LIMIT 1")
|
||||
user = cursor.fetchone()
|
||||
|
||||
if user:
|
||||
cursor.execute("SELECT * FROM loans WHERE user_id = ?", (user['id'],))
|
||||
loans = cursor.fetchall()
|
||||
|
||||
# User should have at least 0 loans
|
||||
assert isinstance(loans, list)
|
||||
|
||||
def test_query_tablets_by_brand(self, populated_db):
|
||||
"""Test querying tablets by brand"""
|
||||
cursor = populated_db.cursor()
|
||||
|
||||
cursor.execute("SELECT * FROM tablets WHERE brand = 'Samsung'")
|
||||
samsung = cursor.fetchall()
|
||||
|
||||
# Should find Samsung tablet from sample data
|
||||
assert len(samsung) >= 1
|
||||
assert samsung[0]['brand'] == 'Samsung'
|
||||
513
tests/test_edge_cases.py
Normal file
513
tests/test_edge_cases.py
Normal file
|
|
@ -0,0 +1,513 @@
|
|||
"""
|
||||
Edge case tests for Tablet Management System
|
||||
Tests critical scenarios: already loaned devices, non-existent loans, duplicates, etc.
|
||||
"""
|
||||
|
||||
import pytest
|
||||
import sqlite3
|
||||
from datetime import datetime
|
||||
import sys
|
||||
import os
|
||||
|
||||
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
||||
|
||||
|
||||
class TestLoanEdgeCases:
|
||||
"""Critical edge cases for loan operations"""
|
||||
|
||||
def test_loan_device_already_loaned(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test that a device already loaned cannot be loaned again
|
||||
This prevents the same physical device from being loaned to multiple users
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'ALREADY_LOANED'))
|
||||
db_conn.commit()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'ALREADY_LOANED'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
# Add a user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User1', 'USER1'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'USER1'")
|
||||
user1 = cursor.fetchone()
|
||||
|
||||
# Add another user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User2', 'USER2'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'USER2'")
|
||||
user2 = cursor.fetchone()
|
||||
|
||||
# Loan to first user
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet['id'], user1['id'], loan_date))
|
||||
db_conn.commit()
|
||||
|
||||
# Verify tablet is loaned
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet['id'],))
|
||||
status = cursor.fetchone()['status']
|
||||
assert status == 'loaned'
|
||||
|
||||
# Try to loan to second user - should check status first
|
||||
# In the actual application, this would be prevented by checking status
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet['id'],))
|
||||
current_status = cursor.fetchone()['status']
|
||||
|
||||
# The application logic should prevent this
|
||||
assert current_status == 'loaned'
|
||||
|
||||
# If we tried to loan it anyway (without checking), we'd get a constraint error
|
||||
# because the tablet status is already 'loaned'
|
||||
# The proper app logic checks status before allowing loan
|
||||
|
||||
def test_return_nonexistent_loan_id(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test returning a loan that doesn't exist
|
||||
Should handle gracefully without crashing
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Try to return a non-existent loan
|
||||
loan_id = 99999
|
||||
cursor.execute("SELECT tablet_id FROM loans WHERE id = ? AND status = 'active'", (loan_id,))
|
||||
loan = cursor.fetchone()
|
||||
|
||||
# Should return None (no such loan)
|
||||
assert loan is None
|
||||
|
||||
# The application should handle this by showing an error message
|
||||
# rather than crashing
|
||||
|
||||
def test_return_already_returned_loan(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test returning a loan that's already been returned
|
||||
Should handle gracefully
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add tablet and user
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'ALREADY_RETURNED'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'ALREADY_RETURNED'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User', 'RETURN_USER'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'RETURN_USER'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# Create and return a loan
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
return_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, return_date, status)
|
||||
VALUES (?, ?, ?, ?, 'returned')
|
||||
''', (tablet['id'], user['id'], loan_date, return_date))
|
||||
cursor.execute("UPDATE tablets SET status = 'available' WHERE id = ?", (tablet['id'],))
|
||||
db_conn.commit()
|
||||
|
||||
# Get the loan ID
|
||||
cursor.execute("SELECT id FROM loans WHERE tablet_id = ?", (tablet['id'],))
|
||||
loan = cursor.fetchone()
|
||||
loan_id = loan['id']
|
||||
|
||||
# Try to return it again
|
||||
cursor.execute("SELECT tablet_id FROM loans WHERE id = ? AND status = 'active'", (loan_id,))
|
||||
active_loan = cursor.fetchone()
|
||||
|
||||
# Should be None because status is 'returned', not 'active'
|
||||
assert active_loan is None
|
||||
|
||||
def test_loan_with_invalid_tablet_id(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test loaning with an invalid/non-existent tablet ID
|
||||
Should fail gracefully
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User', 'INVALID_USER'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'INVALID_USER'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# Try to loan with invalid tablet ID
|
||||
invalid_tablet_id = 99999
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
|
||||
# Note: SQLite doesn't enforce foreign keys by default unless we enable it
|
||||
# The application should validate this at the application level
|
||||
# For now, we verify that the tablet doesn't exist
|
||||
cursor.execute("SELECT id FROM tablets WHERE id = ?", (invalid_tablet_id,))
|
||||
tablet_check = cursor.fetchone()
|
||||
assert tablet_check is None # Tablet doesn't exist
|
||||
|
||||
# In a real app with FK enforcement, this would raise IntegrityError
|
||||
# For SQLite without FK enforcement, we just verify the tablet check
|
||||
|
||||
def test_loan_with_invalid_user_id(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test loaning with an invalid/non-existent user ID
|
||||
Should fail gracefully
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add a tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'INVALID_LOAN'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'INVALID_LOAN'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
# Try to loan with invalid user ID
|
||||
invalid_user_id = 99999
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
|
||||
# Note: SQLite doesn't enforce foreign keys by default unless we enable it
|
||||
# The application should validate this at the application level
|
||||
# For now, we verify that the user doesn't exist
|
||||
cursor.execute("SELECT id FROM users WHERE id = ?", (invalid_user_id,))
|
||||
user_check = cursor.fetchone()
|
||||
assert user_check is None # User doesn't exist
|
||||
|
||||
# In a real app with FK enforcement, this would raise IntegrityError
|
||||
# For SQLite without FK enforcement, we just verify the user check
|
||||
|
||||
|
||||
class TestDuplicatePrevention:
|
||||
"""Tests for preventing duplicate entries"""
|
||||
|
||||
def test_duplicate_tablet_serial_number(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test that duplicate tablet serial numbers are prevented
|
||||
Serial numbers must be unique for tracking
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add first tablet
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand1', 'Model1', 'DUP_SERIAL'))
|
||||
db_conn.commit()
|
||||
|
||||
# Try to add duplicate
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand2', 'Model2', 'DUP_SERIAL'))
|
||||
db_conn.commit()
|
||||
|
||||
def test_duplicate_user_identification(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test that duplicate user identifications are prevented
|
||||
User identifications must be unique
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add first user
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User1', 'DUP_ID'))
|
||||
db_conn.commit()
|
||||
|
||||
# Try to add duplicate
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User2', 'DUP_ID'))
|
||||
db_conn.commit()
|
||||
|
||||
def test_duplicate_non_loanable_device_serial(self, db_conn):
|
||||
"""
|
||||
CRITICAL: Test that duplicate non-loanable device serials are prevented
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add first device
|
||||
cursor.execute('''
|
||||
INSERT INTO non_loanable_devices
|
||||
(brand, model, serial_number, device_type, status)
|
||||
VALUES (?, ?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'DUP_DEVICE_SERIAL', 'projector'))
|
||||
db_conn.commit()
|
||||
|
||||
# Try to add duplicate
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO non_loanable_devices
|
||||
(brand, model, serial_number, device_type, status)
|
||||
VALUES (?, ?, ?, ?, 'available')
|
||||
''', ('Brand2', 'Model2', 'DUP_DEVICE_SERIAL', 'monitor'))
|
||||
db_conn.commit()
|
||||
|
||||
|
||||
class TestDataIntegrity:
|
||||
"""Tests for data integrity constraints"""
|
||||
|
||||
def test_foreign_key_tablet_deletion(self, db_conn):
|
||||
"""
|
||||
Test that deleting a tablet with active loans is handled
|
||||
SQLite defaults to allowing this, but we should be aware
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add tablet and user
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'FK_TEST'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'FK_TEST'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User', 'FK_USER'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'FK_USER'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# Create active loan
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet['id'], user['id'], loan_date))
|
||||
db_conn.commit()
|
||||
|
||||
# SQLite allows this by default (no ON DELETE RESTRICT)
|
||||
# In production, we might want to add CASCADE or RESTRICT
|
||||
# For now, just verify the loan exists
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE tablet_id = ?", (tablet['id'],))
|
||||
loan_count = cursor.fetchone()[0]
|
||||
assert loan_count == 1
|
||||
|
||||
def test_null_serial_number_prevention(self, db_conn):
|
||||
"""
|
||||
Test that NULL serial numbers are prevented
|
||||
Serial numbers are required (NOT NULL constraint)
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Try to add tablet with NULL serial number
|
||||
with pytest.raises(sqlite3.IntegrityError):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', None))
|
||||
db_conn.commit()
|
||||
|
||||
def test_null_identification_prevention(self, db_conn):
|
||||
"""
|
||||
Test that NULL user identifications are prevented
|
||||
Identifications are required (NOT NULL constraint)
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Try to add user with NULL identification
|
||||
# Note: identification is NOT marked as NOT NULL in the schema
|
||||
# This test verifies the current behavior
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User', None))
|
||||
db_conn.commit()
|
||||
|
||||
# This should work because identification is not NOT NULL
|
||||
# But in practice, we should have this constraint
|
||||
cursor.execute("SELECT COUNT(*) FROM users WHERE identification IS NULL")
|
||||
count = cursor.fetchone()[0]
|
||||
# This will be 1, showing that NULL is currently allowed
|
||||
# In production, we should add NOT NULL constraint
|
||||
|
||||
def test_empty_string_serial_number(self, db_conn):
|
||||
"""
|
||||
Test handling of empty string serial numbers
|
||||
Empty strings are different from NULL
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add tablet with empty string serial number
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', ''))
|
||||
db_conn.commit()
|
||||
|
||||
# This should work (empty string is allowed unless we add CHECK constraint)
|
||||
cursor.execute("SELECT COUNT(*) FROM tablets WHERE serial_number = ''")
|
||||
count = cursor.fetchone()[0]
|
||||
assert count == 1
|
||||
|
||||
# In production, we might want to prevent empty strings
|
||||
# with a CHECK constraint: CHECK(serial_number <> '')
|
||||
|
||||
|
||||
class TestConcurrentScenarioSimulations:
|
||||
"""Simulate scenarios that could cause issues in concurrent environments"""
|
||||
|
||||
def test_loan_return_loan_sequence(self, db_conn):
|
||||
"""
|
||||
Test the sequence: loan -> return -> loan again
|
||||
This simulates a device being loaned multiple times over its lifetime
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add tablet and user
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', ('Brand', 'Model', 'SEQUENCE_TEST'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'SEQUENCE_TEST'")
|
||||
tablet = cursor.fetchone()
|
||||
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', ('User', 'SEQUENCE_USER'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'SEQUENCE_USER'")
|
||||
user = cursor.fetchone()
|
||||
|
||||
# First loan
|
||||
loan_date1 = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet['id'], user['id'], loan_date1))
|
||||
db_conn.commit()
|
||||
|
||||
# Return
|
||||
return_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("SELECT id FROM loans WHERE tablet_id = ?", (tablet['id'],))
|
||||
loan1 = cursor.fetchone()
|
||||
cursor.execute('''
|
||||
UPDATE loans SET status = 'returned', return_date = ? WHERE id = ?
|
||||
''', (return_date, loan1['id']))
|
||||
cursor.execute("UPDATE tablets SET status = 'available' WHERE id = ?", (tablet['id'],))
|
||||
db_conn.commit()
|
||||
|
||||
# Second loan
|
||||
loan_date2 = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet['id'],))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet['id'], user['id'], loan_date2))
|
||||
db_conn.commit()
|
||||
|
||||
# Verify we have 2 loans for this tablet
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE tablet_id = ?", (tablet['id'],))
|
||||
loan_count = cursor.fetchone()[0]
|
||||
assert loan_count == 2
|
||||
|
||||
# Verify 1 active, 1 returned
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE tablet_id = ? AND status = 'active'", (tablet['id'],))
|
||||
active_count = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE tablet_id = ? AND status = 'returned'", (tablet['id'],))
|
||||
returned_count = cursor.fetchone()[0]
|
||||
|
||||
assert active_count == 1
|
||||
assert returned_count == 1
|
||||
|
||||
def test_multiple_users_multiple_tablets(self, db_conn):
|
||||
"""
|
||||
Test complex scenario with multiple users and tablets
|
||||
Ensures the many-to-many relationship works correctly
|
||||
"""
|
||||
cursor = db_conn.cursor()
|
||||
|
||||
# Add 3 users
|
||||
users = []
|
||||
for i in range(3):
|
||||
cursor.execute('''
|
||||
INSERT INTO users (name, identification)
|
||||
VALUES (?, ?)
|
||||
''', (f'User{i}', f'MULTI_USER_{i}'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM users WHERE identification = ?", (f'MULTI_USER_{i}',))
|
||||
users.append(cursor.fetchone())
|
||||
|
||||
# Add 5 tablets
|
||||
tablets = []
|
||||
for i in range(5):
|
||||
cursor.execute('''
|
||||
INSERT INTO tablets (brand, model, serial_number, status)
|
||||
VALUES (?, ?, ?, 'available')
|
||||
''', (f'Brand{i}', f'Model{i}', f'MULTI_TABLET_{i}'))
|
||||
db_conn.commit()
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = ?", (f'MULTI_TABLET_{i}',))
|
||||
tablets.append(cursor.fetchone())
|
||||
|
||||
# Loan tablets to users in a pattern
|
||||
# User 0: tablets 0, 1
|
||||
# User 1: tablets 2, 3
|
||||
# User 2: tablet 4
|
||||
loan_date = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
|
||||
|
||||
loans_map = {
|
||||
users[0]['id']: [tablets[0]['id'], tablets[1]['id']],
|
||||
users[1]['id']: [tablets[2]['id'], tablets[3]['id']],
|
||||
users[2]['id']: [tablets[4]['id']],
|
||||
}
|
||||
|
||||
for user_id, tablet_ids in loans_map.items():
|
||||
for tablet_id in tablet_ids:
|
||||
cursor.execute("UPDATE tablets SET status = 'loaned' WHERE id = ?", (tablet_id,))
|
||||
cursor.execute('''
|
||||
INSERT INTO loans (tablet_id, user_id, loan_date, status)
|
||||
VALUES (?, ?, ?, 'active')
|
||||
''', (tablet_id, user_id, loan_date))
|
||||
db_conn.commit()
|
||||
|
||||
# Verify counts
|
||||
cursor.execute("SELECT COUNT(*) FROM loans")
|
||||
total_loans = cursor.fetchone()[0]
|
||||
assert total_loans == 5 # 2 + 2 + 1
|
||||
|
||||
# Verify each user has correct number of loans
|
||||
for user_id, expected_tablet_ids in loans_map.items():
|
||||
cursor.execute("SELECT COUNT(*) FROM loans WHERE user_id = ?", (user_id,))
|
||||
count = cursor.fetchone()[0]
|
||||
assert count == len(expected_tablet_ids)
|
||||
|
||||
# Verify all loaned tablets have correct status
|
||||
cursor.execute("SELECT COUNT(*) FROM tablets WHERE status = 'loaned'")
|
||||
loaned_count = cursor.fetchone()[0]
|
||||
assert loaned_count == 5
|
||||
365
tests/test_minimal_app.py
Normal file
365
tests/test_minimal_app.py
Normal file
|
|
@ -0,0 +1,365 @@
|
|||
"""
|
||||
Unit tests for the actual application functions from minimal_app.py
|
||||
Tests the real business logic with proper imports
|
||||
"""
|
||||
|
||||
import pytest
|
||||
import sqlite3
|
||||
import sys
|
||||
import os
|
||||
from datetime import datetime
|
||||
|
||||
# Add project root to path
|
||||
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
||||
|
||||
# Import functions from minimal_app
|
||||
from minimal_app import (
|
||||
add_tablet, add_user, loan_tablet, return_tablet,
|
||||
show_available_tablets, show_active_loans, show_loan_history,
|
||||
add_non_loanable_device, show_non_loanable_devices, delete_non_loanable_device
|
||||
)
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def test_db_path():
|
||||
"""Path to test database"""
|
||||
return 'test_minimal_app.db'
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def init_test_db(test_db_path):
|
||||
"""Initialize a fresh test database with schema (same as minimal_app)"""
|
||||
# Remove existing test database if it exists
|
||||
if os.path.exists(test_db_path):
|
||||
os.remove(test_db_path)
|
||||
|
||||
# Use the same init_db function from minimal_app
|
||||
from minimal_app import init_db
|
||||
# Temporarily rename the database
|
||||
original_db = 'tablets.db'
|
||||
if os.path.exists(original_db):
|
||||
os.rename(original_db, f'{original_db}.backup')
|
||||
|
||||
try:
|
||||
# Create test database
|
||||
os.environ['TEST_DB'] = test_db_path
|
||||
init_db()
|
||||
yield test_db_path
|
||||
finally:
|
||||
# Cleanup
|
||||
if os.path.exists(test_db_path):
|
||||
os.remove(test_db_path)
|
||||
if os.path.exists(f'{original_db}.backup'):
|
||||
os.rename(f'{original_db}.backup', original_db)
|
||||
if 'TEST_DB' in os.environ:
|
||||
del os.environ['TEST_DB']
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def clean_db():
|
||||
"""Fixture that ensures we have a clean database for each test"""
|
||||
# This is simpler - just create a temp database for each test
|
||||
import tempfile
|
||||
import shutil
|
||||
|
||||
# Create temp directory for database
|
||||
temp_dir = tempfile.mkdtemp()
|
||||
db_path = os.path.join(temp_dir, 'test.db')
|
||||
|
||||
# Initialize database
|
||||
conn = sqlite3.connect(db_path)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS tablets (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
status TEXT DEFAULT 'available'
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS users (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
name TEXT NOT NULL,
|
||||
identification TEXT UNIQUE
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS loans (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
tablet_id INTEGER NOT NULL,
|
||||
user_id INTEGER NOT NULL,
|
||||
loan_date TEXT NOT NULL,
|
||||
return_date TEXT,
|
||||
status TEXT DEFAULT 'active',
|
||||
FOREIGN KEY (tablet_id) REFERENCES tablets (id),
|
||||
FOREIGN KEY (user_id) REFERENCES users (id)
|
||||
)
|
||||
''')
|
||||
|
||||
cursor.execute('''
|
||||
CREATE TABLE IF NOT EXISTS non_loanable_devices (
|
||||
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
brand TEXT NOT NULL,
|
||||
model TEXT NOT NULL,
|
||||
serial_number TEXT UNIQUE NOT NULL,
|
||||
device_type TEXT NOT NULL,
|
||||
location TEXT,
|
||||
status TEXT DEFAULT 'available',
|
||||
notes TEXT,
|
||||
purchase_date TEXT,
|
||||
purchase_cost REAL
|
||||
)
|
||||
''')
|
||||
|
||||
conn.commit()
|
||||
conn.close()
|
||||
|
||||
# Temporarily replace the database
|
||||
original_db = 'tablets.db'
|
||||
backup_path = f'{original_db}.test_backup'
|
||||
|
||||
# Backup original if exists
|
||||
if os.path.exists(original_db):
|
||||
if os.path.exists(backup_path):
|
||||
os.remove(backup_path)
|
||||
os.rename(original_db, backup_path)
|
||||
|
||||
# Copy temp db to tablets.db location
|
||||
shutil.copy(db_path, original_db)
|
||||
|
||||
yield original_db
|
||||
|
||||
# Cleanup
|
||||
if os.path.exists(original_db):
|
||||
os.remove(original_db)
|
||||
if os.path.exists(backup_path):
|
||||
os.rename(backup_path, original_db)
|
||||
shutil.rmtree(temp_dir, ignore_errors=True)
|
||||
|
||||
|
||||
class TestMinimalAppFunctions:
|
||||
"""Test the actual functions from minimal_app.py"""
|
||||
|
||||
def test_add_tablet_function(self, clean_db):
|
||||
"""Test the add_tablet function"""
|
||||
add_tablet('TestBrand', 'TestModel', 'TEST_SN_001')
|
||||
|
||||
# Verify it was added
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM tablets WHERE serial_number = 'TEST_SN_001'")
|
||||
tablet = cursor.fetchone()
|
||||
conn.close()
|
||||
|
||||
assert tablet is not None
|
||||
assert tablet[1] == 'TestBrand' # brand is index 1
|
||||
assert tablet[2] == 'TestModel' # model is index 2
|
||||
assert tablet[3] == 'TEST_SN_001' # serial_number is index 3
|
||||
|
||||
def test_add_tablet_duplicate(self, clean_db, capsys):
|
||||
"""Test that duplicate serial numbers are rejected"""
|
||||
add_tablet('Brand1', 'Model1', 'DUP_SN')
|
||||
add_tablet('Brand2', 'Model2', 'DUP_SN')
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'already exists' in captured.out
|
||||
|
||||
def test_add_user_function(self, clean_db):
|
||||
"""Test the add_user function"""
|
||||
add_user('Test User', 'TEST_ID_001')
|
||||
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM users WHERE identification = 'TEST_ID_001'")
|
||||
user = cursor.fetchone()
|
||||
conn.close()
|
||||
|
||||
assert user is not None
|
||||
assert user[1] == 'Test User' # name is index 1
|
||||
assert user[2] == 'TEST_ID_001' # identification is index 2
|
||||
|
||||
def test_add_user_duplicate(self, clean_db, capsys):
|
||||
"""Test that duplicate user identifications are rejected"""
|
||||
add_user('User1', 'DUP_ID')
|
||||
add_user('User2', 'DUP_ID')
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'already exists' in captured.out
|
||||
|
||||
def test_loan_tablet_function(self, clean_db):
|
||||
"""Test the loan_tablet function"""
|
||||
# Add tablet and user
|
||||
add_tablet('LoanBrand', 'LoanModel', 'LOAN_SN_001')
|
||||
add_user('LoanUser', 'LOAN_ID_001')
|
||||
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'LOAN_SN_001'")
|
||||
tablet_id = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'LOAN_ID_001'")
|
||||
user_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
# Loan the tablet
|
||||
loan_tablet(tablet_id, user_id)
|
||||
|
||||
# Verify loan was created and tablet status changed
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
status = cursor.fetchone()[0]
|
||||
assert status == 'loaned'
|
||||
|
||||
cursor.execute("SELECT * FROM loans WHERE tablet_id = ? AND user_id = ?", (tablet_id, user_id))
|
||||
loan = cursor.fetchone()
|
||||
assert loan is not None
|
||||
assert loan[5] == 'active' # status is index 5
|
||||
|
||||
conn.close()
|
||||
|
||||
def test_loan_already_loaned_tablet(self, clean_db, capsys):
|
||||
"""Test loaning a tablet that's already loaned"""
|
||||
add_tablet('Brand', 'Model', 'ALREADY_LOANED_SN')
|
||||
add_user('User1', 'USER1_ID')
|
||||
add_user('User2', 'USER2_ID')
|
||||
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'ALREADY_LOANED_SN'")
|
||||
tablet_id = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'USER1_ID'")
|
||||
user1_id = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'USER2_ID'")
|
||||
user2_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
# Loan to first user
|
||||
loan_tablet(tablet_id, user1_id)
|
||||
|
||||
# Try to loan to second user - should fail
|
||||
loan_tablet(tablet_id, user2_id)
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'not available' in captured.out
|
||||
|
||||
def test_return_tablet_function(self, clean_db):
|
||||
"""Test the return_tablet function"""
|
||||
add_tablet('ReturnBrand', 'ReturnModel', 'RETURN_SN_001')
|
||||
add_user('ReturnUser', 'RETURN_ID_001')
|
||||
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'RETURN_SN_001'")
|
||||
tablet_id = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'RETURN_ID_001'")
|
||||
user_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
# Loan the tablet
|
||||
loan_tablet(tablet_id, user_id)
|
||||
|
||||
# Get loan ID
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT id FROM loans WHERE tablet_id = ?", (tablet_id,))
|
||||
loan_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
# Return the tablet
|
||||
return_tablet(loan_id)
|
||||
|
||||
# Verify return
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT status FROM tablets WHERE id = ?", (tablet_id,))
|
||||
status = cursor.fetchone()[0]
|
||||
assert status == 'available'
|
||||
|
||||
cursor.execute("SELECT status, return_date FROM loans WHERE id = ?", (loan_id,))
|
||||
loan = cursor.fetchone()
|
||||
assert loan[0] == 'returned'
|
||||
assert loan[1] is not None # return_date should be set
|
||||
|
||||
conn.close()
|
||||
|
||||
def test_return_nonexistent_loan(self, clean_db, capsys):
|
||||
"""Test returning a loan that doesn't exist"""
|
||||
return_tablet(99999)
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'not found' in captured.out or 'Loan' in captured.out
|
||||
|
||||
def test_show_available_tablets(self, clean_db, capsys):
|
||||
"""Test showing available tablets"""
|
||||
add_tablet('Avail1', 'Model1', 'AVAIL_SN_001')
|
||||
add_tablet('Avail2', 'Model2', 'AVAIL_SN_002')
|
||||
|
||||
show_available_tablets()
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'Available Tablets' in captured.out
|
||||
assert 'AVAIL_SN_001' in captured.out
|
||||
assert 'AVAIL_SN_002' in captured.out
|
||||
|
||||
def test_show_active_loans(self, clean_db, capsys):
|
||||
"""Test showing active loans"""
|
||||
add_tablet('LoanBrand', 'LoanModel', 'ACTIVE_LOAN_SN')
|
||||
add_user('LoanUser', 'ACTIVE_LOAN_ID')
|
||||
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id FROM tablets WHERE serial_number = 'ACTIVE_LOAN_SN'")
|
||||
tablet_id = cursor.fetchone()[0]
|
||||
cursor.execute("SELECT id FROM users WHERE identification = 'ACTIVE_LOAN_ID'")
|
||||
user_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
loan_tablet(tablet_id, user_id)
|
||||
show_active_loans()
|
||||
|
||||
captured = capsys.readouterr()
|
||||
assert 'Active Loans' in captured.out
|
||||
assert 'ACTIVE_LOAN_SN' in captured.out
|
||||
|
||||
def test_non_loanable_device_crud(self, clean_db, capsys):
|
||||
"""Test CRUD operations for non-loanable devices"""
|
||||
# Add
|
||||
add_non_loanable_device('Projector', 'P100', 'PROJ_001', 'projector', 'Room A')
|
||||
captured = capsys.readouterr()
|
||||
assert 'Added non-loanable device' in captured.out
|
||||
|
||||
# Show
|
||||
show_non_loanable_devices()
|
||||
captured = capsys.readouterr()
|
||||
assert 'PROJ_001' in captured.out
|
||||
|
||||
# Get ID for delete
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT id FROM non_loanable_devices WHERE serial_number = 'PROJ_001'")
|
||||
device_id = cursor.fetchone()[0]
|
||||
conn.close()
|
||||
|
||||
# Delete
|
||||
delete_non_loanable_device(device_id)
|
||||
captured = capsys.readouterr()
|
||||
assert 'deleted' in captured.out
|
||||
|
||||
# Verify deletion
|
||||
conn = sqlite3.connect(clean_db)
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM non_loanable_devices WHERE serial_number = 'PROJ_001'")
|
||||
device = cursor.fetchone()
|
||||
conn.close()
|
||||
assert device is None
|
||||
Loading…
Add table
Add a link
Reference in a new issue