🐍 Django Piscine — Portfolio Edition

🌍 Overview

A practical and comprehensive journey through Python and Django development — from foundational coding to building full-stack web applications with authentication, ORM, and optimized data structures.

---

🧠 Core Skills

• Django app architecture and modular design
• ORM performance tuning & N+1 query prevention
• User authentication, authorization, and sessions
• Internationalization (i18n) and localization
• Class-based and generic views
• REST mindset and API integration
• SQL & PostgreSQL fundamentals
• Bootstrap integration and responsive UI

---

⚙️ Stack

Languages: Python 3.10+
Framework: Django (LTS)
Database: PostgreSQL
Frontend: HTML, CSS, Bootstrap
Libraries: Requests, BeautifulSoup, psycopg2, gettext
Tools: pip, virtualenv, bash scripting

---

📘 Modules Overview

🪜 Django - 0 Initiation

Introduced core Python concepts: variables, data structures, and file handling. Learned to build small automation scripts and manage environments.

📚 Django - 1 Libraries

Built API-based utilities and learned dependency management. Highlights include:

• Geohashing algorithm implementation.
• Automated package installation using pip and shell scripting.
• Wikipedia content retrieval via Requests, dewiki, and BeautifulSoup.
  → Real-world experience in API consumption, data cleaning, and automation.

🧩 Django - 1 BaseDjango

First Django project setup with modular structure.

• Implemented routing, templates, static files, and navigation bars.
• Practiced DRY via base.html inheritance.
• Worked with simple forms and request/response cycle.

🧱 Django - 2 ORM

Focused on persistence, database modeling, and performance.

• Designed relational models and migrations using Django ORM.
• Used psycopg2 for raw SQL control.
• Practiced insertions, deletions, joins, and filtering.
• Identified and solved N+1 queries with select_related() and prefetch_related().
  → Hands-on understanding of ORM vs SQL and backend efficiency.

🧠 Django - 3 Advanced

Developed a production-style content platform with Articles and UserFavorites models.

• Used Generic Class-Based Views for scalable design.
• Implemented authentication & authorization workflows.
• Added i18n/globalization support for multilingual content.
• Practiced clean URL management and relational data modeling.

🔐 Django - 3 Sessions

Explored user sessions and interactive interfaces.

• Built session-based anonymous user handling (42-second identity).
• Added login, signup, and logout logic using Django’s auth system.
• Created a Tips system with voting, moderation, and Bootstrap UI.
  → Learned state management, UX-driven logic, and secure data flow.

---

🚀 Run It Yourself

git clone https://github.com/agvangrigoryan/django_piscine.git
cd django_piscine/3-advanced
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python manage.py migrate
python manage.py runserver

---

🎯 Outcome

Mastered the development of scalable Django applications — combining backend data modeling, auth and sessions, ORM optimization, and clean UI integration.
This repository represents not just technical fluency, but an understanding of real-world backend architecture and maintainable project design.