Book Image

Django 4 By Example - Fourth Edition

By : Antonio Melé
4.6 (5)
Book Image

Django 4 By Example - Fourth Edition

4.6 (5)
By: Antonio Melé

Overview of this book

Django 4 By Example is the 4th edition of the best-selling franchise that helps you build web apps. This book will walk you through the creation of real-world applications, solving common problems, and implementing best practices using a step-by-step approach. You'll cover a wide range of web app development topics as you build four different apps: A blog application: Create data models, views, and URLs and implement an admin site for your blog. Create sitemaps and RSS feeds and implement a full-text search engine with PostgreSQL. A social website: Implement authentication with Facebook, Twitter, and Google. Create user profiles, image thumbnails, a bookmarklet, and an activity stream. Implement a user follower system and add infinite scroll pagination to your website. An e-commerce application: Build a product catalog, a shopping cart, and asynchronous tasks with Celery and RabbitMQ. Process payments with Stripe and manage payment notifications via webhooks. Build a product recommendation engine with Redis. Create PDF invoices and export orders to CSV. An e-learning platform: Create a content management system to manage polymorphic content. Cache content with Memcached and Redis. Build and consume a RESTful API. Implement a real-time chat using WebSockets with ASGI. Create a production environment using NGINX, uWSGI and Daphne with Docker Compose. This is a practical book that will have you creating web apps quickly.

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Table of Contents (20 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Building a Blog Application
Building a Blog Application
Installing Python
Creating a Python virtual environment
Installing Django
Django overview
Main framework components
The Django architecture
Creating your first project
Creating the blog data models
Creating an administration site for models
Working with QuerySets and managers
Building list and detail views
Creating templates for your views
The request/response cycle
Additional resources
Summary
Join us on Discord.
2
Enhancing Your Blog with Advanced Features
Enhancing Your Blog with Advanced Features
Using canonical URLs for models
Creating SEO-friendly URLs for posts
Modifying the URL patterns
Modifying the views
Modifying the canonical URL for posts
Adding pagination
Building class-based views
Recommending posts by email
Creating a comment system
Additional resources
Summary
3
Extending Your Blog Application
Extending Your Blog Application
Adding the tagging functionality
Retrieving posts by similarity
Creating custom template tags and filters
Adding a sitemap to the site
Creating feeds for blog posts
Adding full-text search to the blog
Additional resources
Summary
4
Building a Social Website
Building a Social Website
Creating a social website project
Using the Django authentication framework
User registration and user profiles
Building a custom authentication backend
Additional resources
Summary
Join us on Discord.
5
Implementing Social Authentication
Implementing Social Authentication
Adding social authentication to your site
Additional resources
Summary
6
Sharing Content on Your Website
Sharing Content on Your Website
Creating an image bookmarking website
Posting content from other websites
Creating a detail view for images
Creating image thumbnails using easy-thumbnails
Adding asynchronous actions with JavaScript
Adding infinite scroll pagination to the image list
Additional resources
Summary
7
Tracking User Actions
Tracking User Actions
Building a follow system
Building a generic activity stream application
Using signals for denormalizing counts
Using Django Debug Toolbar
Counting image views with Redis
Additional resources
Summary
8
Building an Online Shop
Building an Online Shop
Creating an online shop project
Building a shopping cart
Registering customer orders
Asynchronous tasks
Additional resources
Summary
Join us on Discord.
9
Managing Payments and Orders
Managing Payments and Orders
Integrating a payment gateway
Exporting orders to CSV files
Extending the administration site with custom views
Generating PDF invoices dynamically
Additional resources
Summary
10
Extending Your Shop
Extending Your Shop
Creating a coupon system
Building a recommendation engine
Additional resources
Summary
11
Adding Internationalization to Your Shop
Adding Internationalization to Your Shop
Internationalization with Django
Preparing your project for internationalization
Translating Python code
Translating templates
Using the Rosetta translation interface
Fuzzy translations
URL patterns for internationalization
Allowing users to switch language
Translating models with django-parler
Format localization
Using django-localflavor to validate form fields
Additional resources
Summary
12
Building an E-Learning Platform
Building an E-Learning Platform
Setting up the e-learning project
Serving media files
Building the course models
Creating models for polymorphic content
Adding authentication views
Additional resources
Summary
Join us on Discord.
13
Creating a Content Management System
Creating a Content Management System
Creating a CMS
Managing course modules and their contents
Additional resources
Summary
14
Rendering and Caching Content
Rendering and Caching Content
Displaying courses
Adding student registration
Accessing the course contents
Using the cache framework
Additional resources
Summary
15
Building an API
Building an API
Building a RESTful API
Additional resources
Summary
16
Building a Chat Server
Building a Chat Server
Creating a chat application
Real-time Django with Channels
Installing Channels
Writing a consumer
Routing
Implementing the WebSocket client
Enabling a channel layer
Modifying the consumer to be fully asynchronous
Integrating the chat application with existing views
Additional resources
Summary
17
Going Live
Going Live
Creating a production environment
Using Docker Compose
Serving Django through WSGI and NGINX
Securing your site with SSL/TLS
Using Daphne for Django Channels
Creating a custom middleware
Implementing custom management commands
Additional resources
Summary
18
Other Books You May Enjoy
Other Books You May Enjoy
19
Index
Index

Installing Python

Django 4.1 supports Python 3.8, 3.9, and 3.10. In the examples in this book, we will use Python 3.10.6.

If you’re using Linux or macOS, you probably have Python installed. If you’re using Windows, you can download a Python installer from https://www.python.org/downloads/windows/.

Open the command-line shell prompt of your machine. If you are using macOS, open the /Applications/Utilities directory in the Finder, then double-click Terminal. If you are using Windows, open the Start menu and type cmd into the search box. Then click on the Command Prompt application to open it.

Verify that Python is installed on your machine by typing the following command in the shell prompt:

python

If you see something like the following, then Python is installed on your computer:

Python 3.10.6 (v3.10.6:9c7b4bd164, Aug  1 2022, 17:13:48) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

If your installed Python version is lower than 3.10, or if Python is not installed on your computer, download Python 3.10.6 from https://www.python.org/downloads/ and follow the instructions to install it. On the download site, you can find Python installers for Windows, macOS, and Linux.

Throughout this book, when Python is referenced in the shell prompt, we will be using python, though some systems may require using python3. If you are using Linux or macOS and your system’s Python is Python 2 you will need to use python3 to use the Python 3 version you installed.

In Windows, python is the Python executable of your default Python installation, whereas py is the Python launcher. The Python launcher for Windows was introduced in Python 3.3. It detects what Python versions are installed on your machine and it automatically delegates to the latest version. If you use Windows, it’s recommended that you replace python with the py command. You can read more about the Windows Python launcher at https://docs.python.org/3/using/windows.html#launcher.

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