quality_app-v2/documentation/QUICK_REFERENCE.md

Quality App v2 - Quick Reference Guide

📂 Complete File Listing

Python Application Files (~865 lines)

Core Application

• app/__init__.py (120 lines) - App factory, blueprint registration
• app/config.py (70 lines) - Configuration management
• app/auth.py (90 lines) - Authentication utilities
• app/database.py (100 lines) - Database connection pooling
• app/routes.py (70 lines) - Main routes (login, dashboard)

Modules

• app/modules/quality/routes.py (40 lines) - Quality module routes
• app/modules/settings/routes.py (50 lines) - Settings module routes
• app/models/__init__.py - Model package (expandable)

Entry Points

• run.py (20 lines) - Development server
• wsgi.py (10 lines) - Production WSGI entry
• gunicorn.conf.py (20 lines) - Gunicorn configuration
• init_db.py (150 lines) - Database initialization

HTML Templates (~1200 lines)

Base Templates

• app/templates/base.html (110 lines) - Main layout template
• app/templates/login.html (40 lines) - Login page

Main Pages

• app/templates/dashboard.html (90 lines) - Dashboard with modules
• app/templates/profile.html (60 lines) - User profile

Error Pages

• app/templates/errors/404.html (20 lines) - Page not found
• app/templates/errors/500.html (20 lines) - Server error
• app/templates/errors/403.html (20 lines) - Access forbidden

Quality Module Templates

• app/templates/modules/quality/index.html (60 lines)
• app/templates/modules/quality/inspections.html (80 lines)
• app/templates/modules/quality/reports.html (70 lines)

Settings Module Templates

• app/templates/modules/settings/index.html (50 lines)
• app/templates/modules/settings/general.html (60 lines)
• app/templates/modules/settings/users.html (80 lines)
• app/templates/modules/settings/database.html (60 lines)

Stylesheets (~600 lines)

• app/static/css/base.css (400 lines) - Global styles, responsive design
• app/static/css/login.css (200 lines) - Login page styling

JavaScript (~150 lines)

• app/static/js/base.js (150 lines) - Utilities, Bootstrap init, theme toggle

Docker & Deployment

• Dockerfile - Python 3.11 slim, production optimized
• docker-compose.yml - MariaDB + Flask services
• docker-entrypoint.sh - Container startup script
• .dockerignore - Docker build optimization

Configuration & Documentation

• requirements.txt - Python dependencies
• .env.example - Environment variables template
• .gitignore - Git ignore rules
• README.md - Deployment and setup guide
• ARCHITECTURE.md - Technical architecture guide
• PROJECT_SUMMARY.md - Project overview
• QUICK_REFERENCE.md - This file

---

🚀 Quick Commands

Deployment

# One-command deploy
./quick-deploy.sh

# Manual deployment
docker-compose up -d

# Check status
docker-compose ps

# View logs
docker-compose logs -f app

Database

# Initialize database
docker-compose exec app python init_db.py

# Backup database
docker-compose exec mariadb mariadb-dump -u quality_user -p quality_db > backup.sql

# Access MariaDB CLI
docker-compose exec mariadb mariadb -u quality_user -p

Development

# Local setup
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python init_db.py
python run.py

---

🔐 Default Credentials

CHANGE IMMEDIATELY AFTER FIRST LOGIN!

• Username: admin
• Password: admin123

---

📱 Access Points

• Application: http://localhost:8080
• Database: localhost:3306 (MariaDB)
• User: quality_user

---

📋 Module Features

Quality Module

✅ Inspection management ✅ Quality reports ✅ Status tracking ✅ Notes and comments

Settings Module

✅ General settings ✅ User management ✅ Database configuration ✅ Application preferences

---

🗄️ Database Tables

1. users - User accounts

   • Fields: id, username, email, full_name, role, is_active, timestamps

2. user_credentials - Password management

   • Fields: id, user_id, password_hash, timestamps

3. quality_inspections - Quality records

   • Fields: id, type, status, inspector_id, date, notes, timestamps

4. application_settings - Configuration

   • Fields: id, key, value, type, timestamps

---

🔧 Environment Variables

# Flask
FLASK_ENV=production
FLASK_DEBUG=False
SECRET_KEY=your-secret-key

# Database
DB_HOST=mariadb
DB_PORT=3306
DB_USER=quality_user
DB_PASSWORD=your-password
DB_NAME=quality_db

# Application
APP_PORT=8080
APP_HOST=0.0.0.0
LOG_LEVEL=INFO

---

📊 Application Structure

Request
  ↓
Authentication Check
  ↓
Route Handler (Flask Blueprint)
  ↓
Business Logic (auth.py)
  ↓
Database Query (database.py)
  ↓
Template Rendering
  ↓
Response (HTML/JSON)

---

🛡️ Security Features

• ✅ Password hashing (SHA256)
• ✅ Session management
• ✅ SQL injection prevention
• ✅ CSRF protection
• ✅ Connection pooling
• ✅ Error handling

---

📈 Performance

• Connection pooling: 10 connections
• Worker processes: CPU count × 2 + 1
• Worker timeout: 60 seconds
• Max content length: 100MB

---

📚 Documentation Files

1. README.md - Deployment, setup, troubleshooting
2. ARCHITECTURE.md - Technical deep dive, patterns, scalability
3. PROJECT_SUMMARY.md - Overview, features, statistics
4. QUICK_REFERENCE.md - This file

---

⚡ Performance Tips

1. Use Docker for consistent deployments
2. Keep database indexes optimized
3. Monitor logs for errors
4. Regular backups of data
5. Update Python dependencies regularly

---

🔄 Workflow

Development

1. Make code changes
2. Test locally with python run.py
3. Check database migrations
4. Verify Docker build

Staging

1. Build Docker image
2. Run docker-compose up
3. Test all features
4. Check performance

Production

1. Update .env with production values
2. Run ./quick-deploy.sh
3. Verify health checks
4. Monitor logs
5. Regular backups

---

🐛 Troubleshooting

Issue	Solution
DB connection failed	Check if mariadb service is running: docker-compose ps
Port already in use	Change APP_PORT in .env and restart
Template not found	Verify file path in app/templates/
Import error	Install requirements: pip install -r requirements.txt
Database empty	Run: docker-compose exec app python init_db.py

---

🎯 Next Features to Add

• Advanced search and filtering
• Data export (Excel/PDF)
• Email notifications
• API endpoints
• User activity logging
• Two-factor authentication
• Dashboard customization
• Batch operations
• Data validation rules
• Audit trail

---

📞 Support

• Flask docs: https://flask.palletsprojects.com/
• MariaDB docs: https://mariadb.com/kb/
• Docker docs: https://docs.docker.com/

---

📝 Notes

• Database initializes automatically on first run
• Logs are rotated (10 files × 10MB)
• All timestamps in UTC
• UTF-8 support for international characters
• Production-ready with Gunicorn

---

Quality App v2 - Built for Scale, Designed for Extension