Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Django 5 By Example
  • Table Of Contents Toc
  • Feedback & Rating feedback
Django 5 By Example

Django 5 By Example - Fifth Edition

By : Antonio Melé
4.6 (36)
Buy this Book
close
close
Django 5 By Example

Django 5 By Example

4.6 (36)
By: Antonio Melé
Buy this Book

Overview of this book

If you want to learn Django by doing, this book is for you. This 2025 EDITION, fully updated to Django 5.2 LTS, is the fifth edition of the best-selling Django By Example franchise that helps you build real-world web apps. This book will walk you through planning and creation, solving common problems, and implementing best practices using a step-by-step approach. You’ll cover a wide range of web application development topics through four different projects: a blog application, a social website, an e-commerce application, and an e-learning platform. Pick up what’s new in Django 5 as you build end-to-end Python web apps, follow detailed project plans, and understand the hows and whys of Django. This is a practical and approachable book that will have you creating web apps quickly.
Table of Contents (20 chapters)
close
close
close
Preface
Icon
Preface
Icon
Who this book is for
Icon
What this book covers
Icon
To get the most out of this book
Icon
Get in touch
Icon
Join us on Discord!
Icon
Head to https://djangobyexample.com/ to find out more about the book and what past readers thought about it.
Lock Free Chapter
1
Building a Blog Application
Icon
Building a Blog Application
Icon
Installing Python
Icon
Creating a Python virtual environment
Icon
Installing Django
Icon
Django overview
Icon
Creating your first project
Icon
Creating the blog data models
Icon
Creating an administration site for models
Icon
Working with QuerySets and managers
Icon
Building list and detail views
Icon
Creating templates for your views
Icon
The request/response cycle
Icon
Management commands used in this chapter
Icon
Summary
Icon
Additional resources
Icon
Join us on Discord!
2
Enhancing Your Blog and Adding Social Features
Icon
Enhancing Your Blog and Adding Social Features
Icon
Functional overview
Icon
Using canonical URLs for models
Icon
Creating SEO-friendly URLs for posts
Icon
Adding pagination
Icon
Building class-based views
Icon
Recommending posts by email
Icon
Creating a comment system
Icon
Summary
Icon
Additional resources
3
Extending Your Blog Application
Icon
Extending Your Blog Application
Icon
Functional overview
Icon
Implementing tagging with django-taggit
Icon
Retrieving posts by similarity
Icon
Creating custom template tags and filters
Icon
Adding a sitemap to the site
Icon
Creating feeds for blog posts
Icon
Adding full-text search to the blog
Icon
Summary
Icon
Expanding your project using AI
Icon
Additional resources
4
Building a Social Website
Icon
Building a Social Website
Icon
Functional overview
Icon
Creating a social website project
Icon
Using the Django authentication framework
Icon
User registration and user profiles
Icon
Summary
Icon
Additional resources
Icon
Join us on Discord!
5
Implementing Social Authentication
Icon
Implementing Social Authentication
Icon
Functional overview
Icon
Technical requirements
Icon
Using the messages framework
Icon
Building a custom authentication backend
Icon
Adding social authentication to your site
Icon
Summary
Icon
Additional resources
6
Sharing Content on Your Website
Icon
Sharing Content on Your Website
Icon
Functional overview
Icon
Creating an image bookmarking website
Icon
Posting content from other websites
Icon
Creating the detail view for images
Icon
Creating image thumbnails using easy-thumbnails
Icon
Adding asynchronous actions with JavaScript
Icon
Summary
Icon
Additional resources
7
Tracking User Actions
Icon
Tracking User Actions
Icon
Functional overview
Icon
Building a follow system
Icon
Creating an activity stream application
Icon
Using signals for denormalizing counts
Icon
Using Django Debug Toolbar
Icon
Counting image views with Redis
Icon
Summary
Icon
Expanding your project using AI
Icon
Additional resources
8
Building an Online Shop
Icon
Building an Online Shop
Icon
Functional overview
Icon
Creating an online shop project
Icon
Building a shopping cart
Icon
Registering customer orders
Icon
Creating asynchronous tasks
Icon
Summary
Icon
Additional resources
Icon
Join us on Discord!
9
Managing Payments and Orders
Icon
Managing Payments and Orders
Icon
Functional overview
Icon
Integrating a payment gateway
Icon
Exporting orders to CSV files
Icon
Extending the administration site with custom views
Icon
Generating PDF invoices dynamically
Icon
Summary
Icon
Additional resources
10
Extending Your Shop
Icon
Extending Your Shop
Icon
Functional overview
Icon
Creating a coupon system
Icon
Building a recommendation engine
Icon
Summary
Icon
Additional resources
11
Adding Internationalization to Your Shop
Icon
Adding Internationalization to Your Shop
Icon
Functional overview
Icon
Internationalization with Django
Icon
Preparing your project for internationalization
Icon
Translating Python code
Icon
Translating templates
Icon
Using the Rosetta translation interface
Icon
Fuzzy translations
Icon
URL patterns for internationalization
Icon
Allowing users to switch language
Icon
Translating models with django-parler
Icon
Format localization
Icon
Using django-localflavor to validate form fields
Icon
Expanding your project using AI
Icon
Summary
Icon
Additional resources
12
Building an E-Learning Platform
Icon
Building an E-Learning Platform
Icon
Functional overview
Icon
Setting up the e-learning project
Icon
Serving media files
Icon
Building the course models
Icon
Creating models for polymorphic content
Icon
Adding authentication views
Icon
Summary
Icon
Additional resources
Icon
Join us on Discord!
13
Creating a Content Management System
Icon
Creating a Content Management System
Icon
Functional overview
Icon
Creating a CMS
Icon
Managing course modules and their contents
Icon
Reordering modules and their contents
Icon
Summary
Icon
Additional resources
14
Rendering and Caching Content
Icon
Rendering and Caching Content
Icon
Functional overview
Icon
Displaying the catalog of courses
Icon
Adding student registration
Icon
Rendering course contents
Icon
Using the cache framework
Icon
Installing Memcached
Icon
Django cache settings
Icon
Cache levels
Icon
Using the Redis cache backend
Icon
Summary
Icon
Additional resources
15
Building an API
chevron up
Icon
Building an API
Icon
Functional overview
Icon
Building a RESTful API
Icon
Consuming the API
Icon
Extending serializers
Icon
Adding pagination to views
Icon
Building the course serializer
Icon
Creating nested serializers
Icon
Creating ViewSets and routers
Icon
Building custom API views
Icon
Handling authentication
Icon
Adding permissions to views
Icon
Adding additional actions to ViewSets
Icon
Creating custom permissions
Icon
Serializing course contents
Icon
Consuming the RESTful API
Icon
Summary
Icon
Additional resources
16
Building a Chat Server
Icon
Building a Chat Server
Icon
Functional overview
Icon
Creating a chat application
Icon
Real-time Django with Channels
Icon
Installing Channels and Daphne
Icon
Writing a consumer
Icon
Routing
Icon
Implementing the WebSocket client
Icon
Enabling a channel layer
Icon
Modifying the consumer to be fully asynchronous
Icon
Persisting messages into the database
Icon
Integrating the chat application with existing views
Icon
Summary
Icon
Additional resources
17
Going Live
Icon
Going Live
Icon
Creating a production environment
Icon
Using Docker Compose
Icon
Serving Django through WSGI and NGINX
Icon
Securing your site with SSL/TLS
Icon
Configuring Daphne for Django Channels
Icon
Creating a custom middleware
Icon
Implementing custom management commands
Icon
Summary
Icon
Expanding your project using AI
Icon
Additional resources
Icon
Join us on Discord!
18
Other Books You May Enjoy
Icon
Other Books You May Enjoy
19
Index
Icon
Index

Creating custom permissions

You want students to be able to access the contents of the courses they are enrolled on. Only students enrolled on a course should be able to access its contents. The best way to do this is with a custom permission class. DRF provides a BasePermission class that allows you to define the following methods:

  • has_permission(): A view-level permission check
  • has_object_permission(): An instance-level permission check

These methods should return True to grant access, or False otherwise.

Create a new file inside the courses/api/ directory and name it permissions.py. Add the following code to it:

from rest_framework.permissions import BasePermission
class IsEnrolled(BasePermission):
    def has_object_permission(self, request, view, obj):
        return obj.students.filter(id=request.user.id).exists()

You subclass the BasePermission class and override the has_object_permission(). You check that the user performing the request...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Django 5 By Example
End of Section 15
Next Section
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options
font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon