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22 changed files with 4790 additions and 44 deletions
52
README.md
52
README.md
|
|
@ -10,15 +10,16 @@ A simple SQLite-based system for managing tablet lending and returns.
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- **Return Management**: Record when tablets are returned
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- **History Tracking**: Complete history of all loans and returns
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- **User Loans View**: See all tablets loaned to each user (demonstrates one-to-many relationship)
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- **Non-Loanable Devices**: Track inventory devices that cannot be loaned (e.g., projectors, monitors)
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- **Project Notes**: Markdown editor for development documentation
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## Files
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- `minimal_app.py` - Interactive command-line application
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- `minimal_app.py` - Interactive command-line application (includes non-loanable device management)
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- `test_app.py` - Test script that demonstrates functionality
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- `tablets.db` - SQLite database (created automatically)
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- `simple_app.py` - Web-based version (requires Flask)
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- `app.py` - Alternative web version (requires Flask)
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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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## Quick Start
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@ -144,6 +145,7 @@ python3 app.py
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- **Loan Tablet**: Loan a tablet to a user (with search for large datasets)
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- **User Loans**: View all tablets loaned to each user - demonstrates the **one-to-many relationship** (one user, multiple tablets)
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- **Loan History**: Complete history of all loan and return transactions
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- **Non-Loanable Devices**: Manage inventory of devices that cannot be loaned (add, edit, delete, view)
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- **Project Management**: Markdown editor for development notes (saved to `notes_development/project_notes.md`)
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## Database Backup
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@ -153,6 +155,48 @@ 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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## Testing
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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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## License
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||||
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This is a simple educational project. Feel free to use and modify it as needed.
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221
REQUIREMENTS.md
Normal file
221
REQUIREMENTS.md
Normal file
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@ -0,0 +1,221 @@
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# Requisitos del Sistema de Gestión de Préstamos de Tablets
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## Descripción General
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El sistema debe permitir la gestión del préstamo y devolución de dispositivos tablets entre un inventario y un conjunto de usuarios. El enfoque principal es el seguimiento del estado de cada dispositivo y su relación con los usuarios que los han tomado prestados.
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---
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## Requisitos Faltantes
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### Gestión de dispositivos no prestables
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✅ **IMPLEMENTADO** - El sistema ahora permite:
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- Registrar nuevos dispositivos no prestables en un inventario separado (tabla `non_loanable_devices`)
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- Gestionar dispositivos no prestables a través de:
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- Interfaz web (app.py): /non_loanable_devices, /add_non_loanable_device, /edit_non_loanable_device, /delete_non_loanable_device
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- Interfaz CLI (minimal_app.py): Opciones 8, 9, 10 del menú
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- La implementación utiliza una tabla separada en la misma base de datos con los siguientes campos:
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- brand, model, serial_number (único), device_type, location, status, notes, purchase_date, purchase_cost
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## Requisitos Funcionales
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### Gestión de Dispositivos
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El sistema debe permitir:
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- Registrar nuevos dispositivos en el inventario
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- Identificar cada dispositivo de manera única
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- Almacenar información descriptiva de cada dispositivo (marca, modelo, número de serie)
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- Consultar el estado actual de cada dispositivo (disponible, prestado)
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### Gestión de Usuarios
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El sistema debe permitir:
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- Registrar nuevos usuarios
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- Identificar cada usuario de manera única
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- Almacenar información de contacto básica (nombre, identificación)
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- Consultar la información de los usuarios registrados
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### Gestión de Préstamos
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El sistema debe permitir:
|
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- Asignar un dispositivo disponible a un usuario
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- Registrar la fecha y hora del préstamo
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- Registrar la fecha y hora de la devolución
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- Consultar el historial de préstamos de un dispositivo
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- Consultar el historial de préstamos de un usuario
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- Visualizar todos los dispositivos actualmente prestados
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### Consulta y Reportes
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El sistema debe permitir:
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- Buscar dispositivos por cualquier atributo (marca, modelo, número de serie)
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- Buscar usuarios por cualquier atributo (nombre, identificación)
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- Filtrar préstamos por estado (activos, finalizados)
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- Filtrar préstamos por dispositivo
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- Filtrar préstamos por usuario
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- Ver el historial completo de préstamos y devoluciones
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|
||||
---
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## Modelo de Datos
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### Entidades Principales
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1. **Dispositivo**
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- Identificador único
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- Marca
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- Modelo
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- Número de serie (único)
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- Estado (disponible, prestado)
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2. **Usuario**
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- Identificador único
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- Nombre
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- Identificación (única)
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3. **Préstamo**
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- Identificador único
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- Dispositivo asociado
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- Usuario asociado
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- Fecha de préstamo
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- Fecha de devolución (opcional)
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- Estado (activo, finalizado)
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### Relaciones
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- Un **usuario** puede tener **múltiples préstamos** (relación uno a muchos)
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- Un **dispositivo** solo puede estar en **un préstamo activo** a la vez
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- Un **préstamo** relaciona exactamente un dispositivo con un usuario
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- El historial de préstamos permite rastrear todos los movimientos de cada dispositivo
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### Reglas de Negocio
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1. Un dispositivo en estado "prestado" no puede ser prestado a otro usuario
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2. Un préstamo finalizado debe registrar fecha de devolución
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3. La identificación de dispositivos y usuarios debe ser única
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4. Al devolver un dispositivo, este vuelve al estado "disponible"
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||||
---
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||||
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||||
## Flujos de Trabajo
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||||
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### Registro de un Nuevo Dispositivo
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1. El sistema solicita la información del dispositivo (marca, modelo, número de serie)
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2. El sistema valida que el número de serie no esté registrado
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3. El sistema registra el dispositivo con estado "disponible"
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4. El sistema confirma el registro
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### Registro de un Nuevo Usuario
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1. El sistema solicita la información del usuario (nombre, identificación)
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2. El sistema valida que la identificación no esté registrada
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||||
3. El sistema registra el usuario
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4. El sistema confirma el registro
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### Préstamo de un Dispositivo
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1. El sistema muestra los dispositivos disponibles
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2. El usuario selecciona un dispositivo
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3. El sistema muestra los usuarios registrados
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4. El usuario selecciona un usuario
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5. El sistema registra el préstamo con:
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- Dispositivo seleccionado
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- Usuario seleccionado
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- Fecha y hora actual
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- Estado "activo"
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6. El sistema actualiza el estado del dispositivo a "prestado"
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7. El sistema confirma el préstamo
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### Devolución de un Dispositivo
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1. El sistema muestra los préstamos activos
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2. El usuario selecciona un préstamo
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3. El sistema registra la fecha y hora de devolución
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4. El sistema actualiza el estado del préstamo a "finalizado"
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5. El sistema actualiza el estado del dispositivo a "disponible"
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6. El sistema confirma la devolución
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||||
### Consulta de Préstamos por Usuario
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1. El sistema muestra la lista de usuarios
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2. El usuario selecciona un usuario
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3. El sistema muestra:
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- Dispositivos actualmente prestados (préstamos activos)
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- Historial de préstamos pasados (opcional: expandible)
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4. El sistema permite buscar por cualquier campo
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|
||||
---
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## Requisitos No Funcionales
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### Usabilidad
|
||||
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- La interfaz debe permitir búsqueda eficiente en listas grandes (500+ elementos)
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- La visualización de información debe ser clara y organizada
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||||
- Los estados deben ser fácilmente identificables
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- Las acciones principales deben ser accesibles
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### Escalabilidad
|
||||
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||||
- El diseño debe soportar un crecimiento en el número de dispositivos y usuarios
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- La búsqueda debe ser eficiente
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- El historial debe ser consultable sin afectar el rendimiento
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|
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### Mantenibilidad
|
||||
|
||||
- La estructura de datos debe ser clara
|
||||
- Las relaciones entre entidades deben estar bien definidas
|
||||
- Los flujos de trabajo deben estar documentados
|
||||
|
||||
---
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||||
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## Diseño de Interfaz (Conceptual)
|
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|
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### Vistas Principales
|
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1. **Vista de Inventario**
|
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- Lista de dispositivos
|
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- Filtros por estado
|
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- Búsqueda
|
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|
||||
2. **Vista de Usuarios**
|
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- Lista de usuarios
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- Búsqueda
|
||||
|
||||
3. **Vista de Préstamos Activos**
|
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- Lista de préstamos en curso
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- Filtros por dispositivo/usuario
|
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- Acciones: devolver dispositivo
|
||||
|
||||
4. **Vista de Historial**
|
||||
- Lista completa de préstamos
|
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- Filtros por fecha, usuario, dispositivo, estado
|
||||
- Detalles de cada préstamo
|
||||
|
||||
5. **Vista de Préstamos por Usuario**
|
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- Lista de usuarios
|
||||
- Para cada usuario: dispositivos actualmente prestados
|
||||
- Opcional: historial de préstamos pasados (expandible)
|
||||
|
||||
### Elementos de Interacción
|
||||
|
||||
- Campos de búsqueda en todas las listas
|
||||
- Botones de acción claros (Prestar, Devolver, Registrar)
|
||||
- Indicadores visuales de estado (colores, iconos)
|
||||
- Confirmación de acciones críticas
|
||||
|
||||
---
|
||||
|
||||
## Notas de Implementación
|
||||
|
||||
Este documento describe los requisitos a nivel de diseño. La implementación específica (lenguaje de programación, base de datos, framework, arquitectura) queda a criterio del equipo de desarrollo y puede variar según las necesidades técnicas.
|
||||
|
||||
Los detalles técnicos como:
|
||||
- Tecnologías específicas
|
||||
- Estructura de base de datos física
|
||||
- APIs
|
||||
- Autenticación
|
||||
- Despliegue
|
||||
|
||||
Deberán ser definidos en la fase de diseño técnico y pueden evolucionar sin afectar los requisitos funcionales descritos aquí.
|
||||
24
RUNNING.md
24
RUNNING.md
|
|
@ -48,10 +48,22 @@ pkill -f "python app.py"
|
|||
- **Port**: 5000 (configurable in app.py)
|
||||
- **Virtual Environment**: `.venv/` (created with uv)
|
||||
|
||||
## Troubleshooting
|
||||
If you have issues:
|
||||
1. Check if the server is running: `ps aux | grep app.py`
|
||||
2. Check the database: `sqlite3 tablets.db`
|
||||
3. Restart the server: `source .venv/bin/activate && python app.py`
|
||||
## Running Tests
|
||||
|
||||
Enjoy managing your tablets! 📱💻
|
||||
The project includes 46 unit tests for verifying functionality:
|
||||
|
||||
```bash
|
||||
# Run all tests
|
||||
python3 -m pytest tests/ -v
|
||||
|
||||
# Run with coverage
|
||||
python3 -m pytest tests/ --cov=./ --cov-report=term-missing
|
||||
```
|
||||
|
||||
Tests cover:
|
||||
- Core CRUD operations for tablets, users, and loans
|
||||
- Edge cases (duplicates, invalid IDs, already loaned devices)
|
||||
- Application function testing
|
||||
- Non-loanable device management
|
||||
|
||||
All tests use isolated temporary databases and do not affect production data.
|
||||
|
|
|
|||
200
TECHNICAL_SPECIFICATIONS.md
Normal file
200
TECHNICAL_SPECIFICATIONS.md
Normal file
|
|
@ -0,0 +1,200 @@
|
|||
# Especificaciones Técnicas
|
||||
|
||||
Documento complementario a `REQUIREMENTS.md` con propuestas concretas de implementación técnica.
|
||||
|
||||
---
|
||||
|
||||
## 1. Concurrencia en Base de Datos
|
||||
|
||||
| Opción | Descripción | Ventajas | Desventajas |
|
||||
|--------|-------------|---------|-------------|
|
||||
| **SQLite + WAL** | Modo Write-Ahead Logging | Zero-config, embebido, buena para <100 conexiones | Limitado a 1 escritor simultáneo |
|
||||
| **PostgreSQL** | Base de datos relacional | Concurrencia completa, transacciones ACID | Requiere servidor |
|
||||
| **Transacciones** | Aislamiento READ COMMITTED | Previene lecturas sucias | Bloqueos temporales |
|
||||
| **Locking optimista** | Versión de fila en actualizaciones | Sin bloqueos | Conflictos requieren reintento |
|
||||
|
||||
**Recomendación**: SQLite con WAL para prototipos, PostgreSQL para producción. Usar transacciones para operaciones críticas (préstamo/devolución).
|
||||
|
||||
---
|
||||
|
||||
## 2. Autenticación Básica
|
||||
|
||||
| Opción | Descripción | Complejidad |
|
||||
|--------|-------------|-------------|
|
||||
| **Sesiones (Flask)** | Cookies firmadas | Baja |
|
||||
| **JWT** | Tokens sin estado | Media |
|
||||
| **OAuth 2.0** | Delegación a proveedores | Alta |
|
||||
| **Basic Auth** | HTTP Basic Authentication | Mínima |
|
||||
|
||||
**Flujo mínimo**:
|
||||
```
|
||||
Login (user/pass) → Session/JWT → Middleware verifica rol → Acceso a endpoints
|
||||
```
|
||||
|
||||
**Roles sugeridos**:
|
||||
- `admin`: CRUD completo, gestión de usuarios
|
||||
- `staff`: Préstamos/devoluciones
|
||||
- `viewer`: Solo consulta
|
||||
|
||||
---
|
||||
|
||||
## 3. Separación Frontend/Backend
|
||||
|
||||
| Arquitectura | Descripción | Stack Ejemplo |
|
||||
|--------------|-------------|---------------|
|
||||
| **Monolítica + Templates** | Servidor renderiza HTML | Flask+Jinja2, Django |
|
||||
| **API + SPA** | Backend API, frontend dinámico | FastAPI + React/Vue |
|
||||
| **API + SSR** | Backend API + renderizado servidor | Next.js + API |
|
||||
| **Microservicios** | Servicios independientes | Backend API + Frontend estático |
|
||||
|
||||
**Para este proyecto**:
|
||||
- **Opción A**: Flask + Jinja2 (simple, suficiente para requisitos)
|
||||
- **Opción B**: FastAPI + React (escalable, separable)
|
||||
|
||||
---
|
||||
|
||||
## 4. Búsqueda Eficiente (500+ elementos)
|
||||
|
||||
| Opción | Descripción | Implementación |
|
||||
|--------|-------------|----------------|
|
||||
| **Índices DB** | B-tree en columnas buscadas | `CREATE INDEX idx_brand ON tablets(brand)` |
|
||||
| **Búsqueda full-text** | Búsqueda en texto | SQLite FTS5, PostgreSQL tsvector |
|
||||
| **Filtrado cliente** | JavaScript filtra datos | Ideal para <2000 elementos |
|
||||
| **Paginación** | Dividir resultados | `LIMIT 50 OFFSET 0` |
|
||||
|
||||
**Recomendación**: Índices en `serial_number`, `brand`, `model`, `user.name`, `user.identification`.
|
||||
|
||||
---
|
||||
|
||||
## 5. Estructura de Proyecto Propuesta
|
||||
|
||||
```
|
||||
project/
|
||||
├── backend/
|
||||
│ ├── models/ # Entidades (Device, User, Loan)
|
||||
│ ├── services/ # Lógica de negocio
|
||||
│ ├── repositories/ # Acceso a datos
|
||||
│ ├── routes/ # Endpoints/API
|
||||
│ └── app.py # Configuración
|
||||
├── frontend/ # Opcional para opción B
|
||||
│ ├── public/
|
||||
│ └── src/
|
||||
├── migrations/ # Control de cambios DB
|
||||
├── tests/
|
||||
└── docs/
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 6. Decisiones Clave por Tomar
|
||||
|
||||
| Decisión | Opciones | Impacto |
|
||||
|----------|----------|---------|
|
||||
| Base de datos | SQLite / PostgreSQL | Concurrencia, despliegue |
|
||||
| Autenticación | Sesiones / JWT / Ninguna | Seguridad, complejidad |
|
||||
| Frontend | Templates / SPA / Ninguno | Experiencia usuario |
|
||||
| Despliegue | Local / Docker / Cloud | Escalabilidad |
|
||||
|
||||
---
|
||||
|
||||
## 7. Ejemplo de Implementación Mínima (Pseudocódigo)
|
||||
|
||||
```python
|
||||
# modelos.py
|
||||
class Device:
|
||||
id: int (PK)
|
||||
serial_number: str (unique)
|
||||
status: str (available/loaned)
|
||||
loans: List[Loan] (one-to-many)
|
||||
|
||||
class User:
|
||||
id: int (PK)
|
||||
identification: str (unique)
|
||||
loans: List[Loan] (one-to-many)
|
||||
|
||||
class Loan:
|
||||
id: int (PK)
|
||||
device_id: int (FK)
|
||||
user_id: int (FK)
|
||||
loan_date: datetime
|
||||
return_date: datetime (nullable)
|
||||
status: str (active/returned)
|
||||
|
||||
# servicios/loan_service.py
|
||||
def loan_device(device_id: int, user_id: int) -> Loan:
|
||||
with transaction(): # Atomicidad
|
||||
device = get_device_for_update(device_id)
|
||||
if device.status != 'available':
|
||||
raise DeviceNotAvailableError()
|
||||
|
||||
loan = Loan.create(
|
||||
device_id=device_id,
|
||||
user_id=user_id,
|
||||
loan_date=now(),
|
||||
status='active'
|
||||
)
|
||||
device.status = 'loaned'
|
||||
return loan
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 8. Consideraciones Adicionales
|
||||
|
||||
- **Validaciones**: Únicas (serial_number, identification) a nivel de base de datos
|
||||
- **Auditoría**: Campos `created_at`, `updated_at` en todas las entidades
|
||||
- **Backups**: Script para exportar base de datos periódicamente
|
||||
- **Logging**: Registrar préstamos/devoluciones para auditoría
|
||||
- **Versionado API**: `/api/v1/...` para compatibilidad futura
|
||||
- **Pruebas**: Cubrir flujos críticos (préstamo con dispositivo no disponible, devolución de préstamo inexistente)
|
||||
|
||||
---
|
||||
|
||||
## 9. Migración a PostgreSQL (Futuro)
|
||||
|
||||
### Contexto
|
||||
|
||||
El sistema actualmente utiliza **SQLite** como base de datos embebida, ideal para prototipos y aplicaciones pequeñas. Sin embargo, SQLite tiene limitaciones para escalar.
|
||||
|
||||
### Criterios para Migración
|
||||
|
||||
Considerar migrar a **PostgreSQL** cuando:
|
||||
- Tamaño DB > 1GB
|
||||
- Más de 50 conexiones simultáneas
|
||||
- Más de 200 usuarios activos
|
||||
- Más de 500 transacciones por minuto
|
||||
- Necesidad de múltiples servidores
|
||||
|
||||
### Arquitectura Propuesta
|
||||
|
||||
Usar un patrón de **Repository** para abstraer la base de datos:
|
||||
```
|
||||
backend/
|
||||
├── repositories/
|
||||
│ ├── base_repository.py # Interfaz abstracta
|
||||
│ ├── sqlite_repository.py # Implementación SQLite
|
||||
│ └── postgres_repository.py # Implementación PostgreSQL
|
||||
└── config/
|
||||
└── database.py # Fábrica de repositorios
|
||||
```
|
||||
|
||||
### Schema PostgreSQL
|
||||
|
||||
El schema es similar al de SQLite pero con tipos de datos más específicos y índices adicionales para rendimiento.
|
||||
|
||||
### Pasos para Migración
|
||||
|
||||
1. Instalar dependencias: `pip install psycopg2-binary sqlalchemy alembic`
|
||||
2. Configurar PostgreSQL y crear base de datos
|
||||
3. Ejecutar script de migración: `python scripts/migrate_to_postgres.py`
|
||||
4. Cambiar configuración: `DB_TYPE=postgres`
|
||||
5. Iniciar aplicación
|
||||
|
||||
### Beneficios
|
||||
|
||||
- Concurrencia ilimitada (múltiples escritores)
|
||||
- Escalabilidad a miles de conexiones
|
||||
- Mejor rendimiento con índices
|
||||
- Seguridad integrada (autenticación, roles)
|
||||
- Backups automáticos
|
||||
- Replicación y clustering
|
||||
109
app.py
109
app.py
|
|
@ -63,6 +63,22 @@ def init_db():
|
|||
)
|
||||
''')
|
||||
|
||||
# Create non_loanable_devices table for devices that cannot be loaned
|
||||
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()
|
||||
|
||||
@app.route('/')
|
||||
|
|
@ -319,6 +335,99 @@ def user_loans():
|
|||
return render_template('user_loans.html', users_with_loans=user_loans_list)
|
||||
|
||||
|
||||
@app.route('/non_loanable_devices')
|
||||
def non_loanable_devices():
|
||||
"""Show all non-loanable devices"""
|
||||
with get_db() as conn:
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM non_loanable_devices ORDER BY device_type, brand, model")
|
||||
devices = cursor.fetchall()
|
||||
|
||||
return render_template('non_loanable_devices.html', devices=devices)
|
||||
|
||||
|
||||
@app.route('/add_non_loanable_device', methods=['GET', 'POST'])
|
||||
def add_non_loanable_device():
|
||||
"""Add a new non-loanable device to inventory"""
|
||||
if request.method == 'POST':
|
||||
brand = request.form['brand']
|
||||
model = request.form['model']
|
||||
serial_number = request.form['serial_number']
|
||||
device_type = request.form['device_type']
|
||||
location = request.form['location']
|
||||
notes = request.form['notes']
|
||||
purchase_date = request.form.get('purchase_date', '')
|
||||
purchase_cost = request.form.get('purchase_cost', '')
|
||||
|
||||
try:
|
||||
with get_db() as conn:
|
||||
cursor = conn.cursor()
|
||||
cursor.execute('''
|
||||
INSERT INTO non_loanable_devices
|
||||
(brand, model, serial_number, device_type, location, status, notes, purchase_date, purchase_cost)
|
||||
VALUES (?, ?, ?, ?, ?, 'available', ?, ?, ?)
|
||||
''', (brand, model, serial_number, device_type, location, notes, purchase_date, purchase_cost))
|
||||
conn.commit()
|
||||
flash('Non-loanable device added successfully!', 'success')
|
||||
except sqlite3.IntegrityError:
|
||||
flash('Error: Serial number already exists!', 'error')
|
||||
|
||||
return redirect(url_for('non_loanable_devices'))
|
||||
|
||||
return render_template('add_non_loanable_device.html')
|
||||
|
||||
|
||||
@app.route('/edit_non_loanable_device/<int:device_id>', methods=['GET', 'POST'])
|
||||
def edit_non_loanable_device(device_id):
|
||||
"""Edit a non-loanable device"""
|
||||
with get_db() as conn:
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("SELECT * FROM non_loanable_devices WHERE id = ?", (device_id,))
|
||||
device = cursor.fetchone()
|
||||
|
||||
if not device:
|
||||
flash('Error: Device not found!', 'error')
|
||||
return redirect(url_for('non_loanable_devices'))
|
||||
|
||||
if request.method == 'POST':
|
||||
brand = request.form['brand']
|
||||
model = request.form['model']
|
||||
serial_number = request.form['serial_number']
|
||||
device_type = request.form['device_type']
|
||||
location = request.form['location']
|
||||
status = request.form['status']
|
||||
notes = request.form['notes']
|
||||
purchase_date = request.form.get('purchase_date', '')
|
||||
purchase_cost = request.form.get('purchase_cost', '')
|
||||
|
||||
try:
|
||||
cursor.execute('''
|
||||
UPDATE non_loanable_devices SET
|
||||
brand = ?, model = ?, serial_number = ?, device_type = ?,
|
||||
location = ?, status = ?, notes = ?, purchase_date = ?, purchase_cost = ?
|
||||
WHERE id = ?
|
||||
''', (brand, model, serial_number, device_type, location, status, notes, purchase_date, purchase_cost, device_id))
|
||||
conn.commit()
|
||||
flash('Device updated successfully!', 'success')
|
||||
return redirect(url_for('non_loanable_devices'))
|
||||
except sqlite3.IntegrityError:
|
||||
flash('Error: Serial number already exists!', 'error')
|
||||
|
||||
return render_template('edit_non_loanable_device.html', device=device)
|
||||
|
||||
|
||||
@app.route('/delete_non_loanable_device/<int:device_id>')
|
||||
def delete_non_loanable_device(device_id):
|
||||
"""Delete a non-loanable device"""
|
||||
with get_db() as conn:
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("DELETE FROM non_loanable_devices WHERE id = ?", (device_id,))
|
||||
conn.commit()
|
||||
flash('Device deleted successfully!', 'success')
|
||||
|
||||
return redirect(url_for('non_loanable_devices'))
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
# Initialize database
|
||||
init_db()
|
||||
|
|
|
|||
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.
|
||||
1
gestiontablets.sh
Normal file
1
gestiontablets.sh
Normal file
|
|
@ -0,0 +1 @@
|
|||
vibe --resume fa1bb230
|
||||
|
|
@ -44,6 +44,22 @@ def init_db():
|
|||
)
|
||||
''')
|
||||
|
||||
# Create non_loanable_devices table
|
||||
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()
|
||||
|
||||
|
|
@ -202,6 +218,59 @@ def show_loan_history():
|
|||
|
||||
conn.close()
|
||||
|
||||
|
||||
def add_non_loanable_device(brand, model, serial_number, device_type, location='', notes='', purchase_date='', purchase_cost=None):
|
||||
"""Add a new non-loanable device to inventory"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
try:
|
||||
cursor.execute('''
|
||||
INSERT INTO non_loanable_devices
|
||||
(brand, model, serial_number, device_type, location, status, notes, purchase_date, purchase_cost)
|
||||
VALUES (?, ?, ?, ?, ?, 'available', ?, ?, ?)
|
||||
''', (brand, model, serial_number, device_type, location, notes, purchase_date, purchase_cost))
|
||||
conn.commit()
|
||||
print(f"✓ Added non-loanable device: {brand} {model} ({serial_number}) - Type: {device_type}")
|
||||
except sqlite3.IntegrityError:
|
||||
print(f"✗ Error: Serial number {serial_number} already exists")
|
||||
finally:
|
||||
conn.close()
|
||||
|
||||
|
||||
def show_non_loanable_devices():
|
||||
"""Show all non-loanable devices"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("SELECT id, brand, model, serial_number, device_type, location, status FROM non_loanable_devices")
|
||||
devices = cursor.fetchall()
|
||||
|
||||
print("\n=== Non-Loanable Devices ===")
|
||||
if devices:
|
||||
for device in devices:
|
||||
print(f"ID: {device[0]}, Type: {device[4]}, {device[1]} {device[2]} ({device[3]}), Location: {device[5] or 'N/A'}, Status: {device[6]}")
|
||||
else:
|
||||
print("No non-loanable devices")
|
||||
|
||||
conn.close()
|
||||
|
||||
|
||||
def delete_non_loanable_device(device_id):
|
||||
"""Delete a non-loanable device"""
|
||||
conn = sqlite3.connect('tablets.db')
|
||||
cursor = conn.cursor()
|
||||
|
||||
cursor.execute("DELETE FROM non_loanable_devices WHERE id = ?", (device_id,))
|
||||
conn.commit()
|
||||
|
||||
if cursor.rowcount > 0:
|
||||
print(f"✓ Non-loanable device {device_id} deleted")
|
||||
else:
|
||||
print(f"✗ Error: Device {device_id} not found")
|
||||
|
||||
conn.close()
|
||||
|
||||
def main():
|
||||
"""Main menu"""
|
||||
init_db()
|
||||
|
|
@ -218,9 +287,12 @@ def main():
|
|||
print("5. Show Available Tablets")
|
||||
print("6. Show Active Loans")
|
||||
print("7. Show Loan History")
|
||||
print("8. Exit")
|
||||
print("8. Add Non-Loanable Device")
|
||||
print("9. Show Non-Loanable Devices")
|
||||
print("10. Delete Non-Loanable Device")
|
||||
print("11. Exit")
|
||||
|
||||
choice = input("Enter your choice (1-8): ")
|
||||
choice = input("Enter your choice (1-11): ")
|
||||
|
||||
if choice == '1':
|
||||
print("\n=== Add Tablet ===")
|
||||
|
|
@ -269,6 +341,28 @@ def main():
|
|||
show_loan_history()
|
||||
|
||||
elif choice == '8':
|
||||
print("\n=== Add Non-Loanable Device ===")
|
||||
brand = input("Brand: ")
|
||||
model = input("Model: ")
|
||||
serial_number = input("Serial Number: ")
|
||||
device_type = input("Device Type (e.g., projector, monitor): ")
|
||||
location = input("Location (optional): ")
|
||||
notes = input("Notes (optional): ")
|
||||
add_non_loanable_device(brand, model, serial_number, device_type, location, notes)
|
||||
|
||||
elif choice == '9':
|
||||
show_non_loanable_devices()
|
||||
|
||||
elif choice == '10':
|
||||
print("\n=== Delete Non-Loanable Device ===")
|
||||
show_non_loanable_devices()
|
||||
device_id = input("Enter Device ID to delete: ")
|
||||
try:
|
||||
delete_non_loanable_device(int(device_id))
|
||||
except ValueError:
|
||||
print("✗ Error: Invalid ID format")
|
||||
|
||||
elif choice == '11':
|
||||
print("Goodbye!")
|
||||
break
|
||||
|
||||
|
|
|
|||
|
|
@ -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"
|
||||
|
|
|
|||
|
|
@ -62,6 +62,22 @@ def init_db():
|
|||
)
|
||||
''')
|
||||
|
||||
# Create non_loanable_devices table
|
||||
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()
|
||||
|
||||
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
|
||||
|
|
|
|||
63
templates/add_non_loanable_device.html
Normal file
63
templates/add_non_loanable_device.html
Normal file
|
|
@ -0,0 +1,63 @@
|
|||
{% extends "base.html" %}
|
||||
|
||||
{% block content %}
|
||||
<h2>Add Non-Loanable Device</h2>
|
||||
<p>Add a device that will be tracked in inventory but cannot be loaned to users (e.g., projectors, monitors, etc.)</p>
|
||||
|
||||
<form method="POST" action="/add_non_loanable_device">
|
||||
<div class="form-group">
|
||||
<label for="device_type">Device Type:</label>
|
||||
<select id="device_type" name="device_type" required>
|
||||
<option value="">Select device type...</option>
|
||||
<option value="projector">Projector</option>
|
||||
<option value="monitor">Monitor</option>
|
||||
<option value="laptop">Laptop (non-loanable)</option>
|
||||
<option value="printer">Printer</option>
|
||||
<option value="camera">Camera</option>
|
||||
<option value="audio">Audio Equipment</option>
|
||||
<option value="network">Network Equipment</option>
|
||||
<option value="other">Other</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="brand">Brand:</label>
|
||||
<input type="text" id="brand" name="brand" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="model">Model:</label>
|
||||
<input type="text" id="model" name="model" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="serial_number">Serial Number:</label>
|
||||
<input type="text" id="serial_number" name="serial_number" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="location">Location:</label>
|
||||
<input type="text" id="location" name="location">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="purchase_date">Purchase Date:</label>
|
||||
<input type="date" id="purchase_date" name="purchase_date">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="purchase_cost">Purchase Cost:</label>
|
||||
<input type="number" id="purchase_cost" name="purchase_cost" step="0.01">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="notes">Notes:</label>
|
||||
<textarea id="notes" name="notes"></textarea>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<button type="submit" class="btn">Add Device</button>
|
||||
<a href="/non_loanable_devices" class="btn">Cancel</a>
|
||||
</div>
|
||||
</form>
|
||||
{% endblock %}
|
||||
|
|
@ -144,6 +144,7 @@
|
|||
<a href="/loan_tablet">Loan Tablet</a>
|
||||
<a href="/history">Loan History</a>
|
||||
<a href="/user_loans">User Loans</a>
|
||||
<a href="/non_loanable_devices">Non-Loanable Devices</a>
|
||||
<a href="/project_management">Project Management</a>
|
||||
</div>
|
||||
|
||||
|
|
|
|||
71
templates/edit_non_loanable_device.html
Normal file
71
templates/edit_non_loanable_device.html
Normal file
|
|
@ -0,0 +1,71 @@
|
|||
{% extends "base.html" %}
|
||||
|
||||
{% block content %}
|
||||
<h2>Edit Non-Loanable Device</h2>
|
||||
|
||||
<form method="POST" action="/edit_non_loanable_device/{{ device.id }}">
|
||||
<div class="form-group">
|
||||
<label for="device_type">Device Type:</label>
|
||||
<select id="device_type" name="device_type" required>
|
||||
<option value="projector" {% if device.device_type == 'projector' %}selected{% endif %}>Projector</option>
|
||||
<option value="monitor" {% if device.device_type == 'monitor' %}selected{% endif %}>Monitor</option>
|
||||
<option value="laptop" {% if device.device_type == 'laptop' %}selected{% endif %}>Laptop (non-loanable)</option>
|
||||
<option value="printer" {% if device.device_type == 'printer' %}selected{% endif %}>Printer</option>
|
||||
<option value="camera" {% if device.device_type == 'camera' %}selected{% endif %}>Camera</option>
|
||||
<option value="audio" {% if device.device_type == 'audio' %}selected{% endif %}>Audio Equipment</option>
|
||||
<option value="network" {% if device.device_type == 'network' %}selected{% endif %}>Network Equipment</option>
|
||||
<option value="other" {% if device.device_type == 'other' %}selected{% endif %}>Other</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="brand">Brand:</label>
|
||||
<input type="text" id="brand" name="brand" value="{{ device.brand }}" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="model">Model:</label>
|
||||
<input type="text" id="model" name="model" value="{{ device.model }}" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="serial_number">Serial Number:</label>
|
||||
<input type="text" id="serial_number" name="serial_number" value="{{ device.serial_number }}" required>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="location">Location:</label>
|
||||
<input type="text" id="location" name="location" value="{{ device.location or '' }}">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="status">Status:</label>
|
||||
<select id="status" name="status" required>
|
||||
<option value="available" {% if device.status == 'available' %}selected{% endif %}>Available</option>
|
||||
<option value="in_use" {% if device.status == 'in_use' %}selected{% endif %}>In Use</option>
|
||||
<option value="maintenance" {% if device.status == 'maintenance' %}selected{% endif %}>Maintenance</option>
|
||||
<option value="retired" {% if device.status == 'retired' %}selected{% endif %}>Retired</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="purchase_date">Purchase Date:</label>
|
||||
<input type="date" id="purchase_date" name="purchase_date" value="{{ device.purchase_date or '' }}">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="purchase_cost">Purchase Cost:</label>
|
||||
<input type="number" id="purchase_cost" name="purchase_cost" step="0.01" value="{{ device.purchase_cost or '' }}">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="notes">Notes:</label>
|
||||
<textarea id="notes" name="notes">{{ device.notes or '' }}</textarea>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<button type="submit" class="btn">Update Device</button>
|
||||
<a href="/non_loanable_devices" class="btn">Cancel</a>
|
||||
</div>
|
||||
</form>
|
||||
{% endblock %}
|
||||
43
templates/non_loanable_devices.html
Normal file
43
templates/non_loanable_devices.html
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
{% extends "base.html" %}
|
||||
|
||||
{% block content %}
|
||||
<div class="section">
|
||||
<h2>Non-Loanable Devices Inventory</h2>
|
||||
<p>These devices are tracked in inventory but cannot be loaned to users.</p>
|
||||
<a href="/add_non_loanable_device" class="btn">Add Non-Loanable Device</a>
|
||||
|
||||
{% if devices %}
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th>Type</th>
|
||||
<th>Brand</th>
|
||||
<th>Model</th>
|
||||
<th>Serial Number</th>
|
||||
<th>Location</th>
|
||||
<th>Status</th>
|
||||
<th>Actions</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
{% for device in devices %}
|
||||
<tr>
|
||||
<td>{{ device.device_type }}</td>
|
||||
<td>{{ device.brand }}</td>
|
||||
<td>{{ device.model }}</td>
|
||||
<td>{{ device.serial_number }}</td>
|
||||
<td>{{ device.location or '-' }}</td>
|
||||
<td>{{ device.status }}</td>
|
||||
<td>
|
||||
<a href="/edit_non_loanable_device/{{ device.id }}" class="btn">Edit</a>
|
||||
<a href="/delete_non_loanable_device/{{ device.id }}" class="btn btn-danger" onclick="return confirm('Are you sure you want to delete this device?')">Delete</a>
|
||||
</td>
|
||||
</tr>
|
||||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
{% else %}
|
||||
<p>No non-loanable devices registered.</p>
|
||||
{% endif %}
|
||||
</div>
|
||||
{% endblock %}
|
||||
|
|
@ -7,18 +7,67 @@
|
|||
This page demonstrates the many-to-many relationship between users and tablets via the loans table.
|
||||
</p>
|
||||
|
||||
<div class="user-loans-container">
|
||||
<!-- Search Box -->
|
||||
<div class="search-container">
|
||||
<input type="text" id="searchInput" placeholder="Search by user name, identification, tablet brand, model, or serial number..."
|
||||
onkeyup="filterUsers()">
|
||||
<button onclick="clearSearch()" class="btn btn-clear">Clear</button>
|
||||
</div>
|
||||
|
||||
<div class="user-loans-container" id="userLoansContainer">
|
||||
{% for user_data in users_with_loans %}
|
||||
{% set user = user_data.user %}
|
||||
{% set loans = user_data.loans %}
|
||||
{% set active_loans = loans|selectattr('status', 'equalto', 'active')|list %}
|
||||
{% set returned_loans = loans|selectattr('status', 'equalto', 'returned')|list %}
|
||||
|
||||
<div class="user-card">
|
||||
<div class="user-card"
|
||||
data-search="{{ user.name|lower }} {{ user.identification|lower }} {% for loan in loans %}{{ loan.brand|lower }} {{ loan.model|lower }} {{ loan.serial_number|lower }} {% endfor %}">
|
||||
<div class="user-header">
|
||||
<h3>{{ user.name }} ({{ user.identification }})</h3>
|
||||
<span class="loan-count">{{ loans|length }} tablet{{ 's' if loans|length != 1 else '' }} loaned</span>
|
||||
<span class="loan-count">
|
||||
{{ active_loans|length }} active, {{ returned_loans|length }} past
|
||||
</span>
|
||||
</div>
|
||||
|
||||
{% if loans %}
|
||||
{% if active_loans %}
|
||||
<div class="loans-section current-loans">
|
||||
<h4>Current Loans</h4>
|
||||
<table class="loans-table">
|
||||
<thead>
|
||||
<tr>
|
||||
<th>Tablet</th>
|
||||
<th>Serial Number</th>
|
||||
<th>Loan Date</th>
|
||||
<th>Status</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
{% for loan in active_loans %}
|
||||
<tr class="loan-row status-{{ loan.status }}">
|
||||
<td>{{ loan.brand }} {{ loan.model }}</td>
|
||||
<td>{{ loan.serial_number }}</td>
|
||||
<td>{{ loan.loan_date }}</td>
|
||||
<td>
|
||||
<span class="status-badge status-{{ loan.status }}">
|
||||
{{ loan.status }}
|
||||
</span>
|
||||
</td>
|
||||
</tr>
|
||||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
{% endif %}
|
||||
|
||||
{% if returned_loans %}
|
||||
<div class="loans-section past-loans">
|
||||
<h4>
|
||||
<button class="expand-toggle" onclick="togglePastLoans(this)">
|
||||
▶ Past Loans ({{ returned_loans|length }})
|
||||
</button>
|
||||
</h4>
|
||||
<div class="past-loans-content" style="display: none;">
|
||||
<table class="loans-table">
|
||||
<thead>
|
||||
<tr>
|
||||
|
|
@ -30,7 +79,7 @@
|
|||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
{% for loan in loans %}
|
||||
{% for loan in returned_loans %}
|
||||
<tr class="loan-row status-{{ loan.status }}">
|
||||
<td>{{ loan.brand }} {{ loan.model }}</td>
|
||||
<td>{{ loan.serial_number }}</td>
|
||||
|
|
@ -45,7 +94,11 @@
|
|||
{% endfor %}
|
||||
</tbody>
|
||||
</table>
|
||||
{% else %}
|
||||
</div>
|
||||
</div>
|
||||
{% endif %}
|
||||
|
||||
{% if not active_loans and not returned_loans %}
|
||||
<p class="no-loans">No loans recorded for this user.</p>
|
||||
{% endif %}
|
||||
</div>
|
||||
|
|
@ -56,6 +109,32 @@
|
|||
{% endif %}
|
||||
</div>
|
||||
|
||||
<script>
|
||||
function filterUsers() {
|
||||
const search = document.getElementById('searchInput').value.toLowerCase();
|
||||
const cards = document.querySelectorAll('.user-card');
|
||||
|
||||
cards.forEach(card => {
|
||||
const searchText = card.getAttribute('data-search') || '';
|
||||
card.style.display = searchText.includes(search) ? '' : 'none';
|
||||
});
|
||||
}
|
||||
|
||||
function clearSearch() {
|
||||
document.getElementById('searchInput').value = '';
|
||||
filterUsers();
|
||||
}
|
||||
|
||||
function togglePastLoans(button) {
|
||||
const content = button.closest('.loans-section').querySelector('.past-loans-content');
|
||||
const isExpanded = content.style.display !== 'none';
|
||||
|
||||
content.style.display = isExpanded ? 'none' : 'block';
|
||||
const count = button.textContent.match(/\d+/)[0];
|
||||
button.textContent = isExpanded ? '▶ Past Loans (' + count + ')' : '▼ Past Loans (' + count + ') ';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.relationship-note {
|
||||
background-color: #e8f5e9;
|
||||
|
|
@ -65,6 +144,23 @@
|
|||
border-left: 4px solid #4CAF50;
|
||||
}
|
||||
|
||||
.search-container {
|
||||
margin-bottom: 20px;
|
||||
display: flex;
|
||||
gap: 10px;
|
||||
}
|
||||
|
||||
.search-container input {
|
||||
flex: 1;
|
||||
padding: 10px;
|
||||
border: 1px solid #ddd;
|
||||
border-radius: 4px;
|
||||
}
|
||||
|
||||
.btn-clear {
|
||||
background-color: #999;
|
||||
}
|
||||
|
||||
.user-loans-container {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
|
|
@ -98,6 +194,28 @@
|
|||
font-style: italic;
|
||||
}
|
||||
|
||||
.loans-section {
|
||||
margin-top: 15px;
|
||||
}
|
||||
|
||||
.loans-section h4 {
|
||||
margin: 0 0 10px 0;
|
||||
color: #555;
|
||||
}
|
||||
|
||||
.expand-toggle {
|
||||
background: none;
|
||||
border: none;
|
||||
color: #4CAF50;
|
||||
cursor: pointer;
|
||||
font-size: 14px;
|
||||
padding: 0;
|
||||
}
|
||||
|
||||
.expand-toggle:hover {
|
||||
text-decoration: underline;
|
||||
}
|
||||
|
||||
.loans-table {
|
||||
width: 100%;
|
||||
border-collapse: collapse;
|
||||
|
|
@ -120,7 +238,7 @@
|
|||
}
|
||||
|
||||
.loan-row.status-returned {
|
||||
background-color: #e8f5e9;
|
||||
background-color: #f5f5f5;
|
||||
}
|
||||
|
||||
.status-badge {
|
||||
|
|
@ -137,7 +255,7 @@
|
|||
}
|
||||
|
||||
.status-badge.status-returned {
|
||||
background-color: #4CAF50;
|
||||
background-color: #9E9E9E;
|
||||
color: white;
|
||||
}
|
||||
|
||||
|
|
|
|||
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