Tango With Django 2
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Tango With Django 2

A beginner's guide to web development with Django 2.

About the Book

The new edition is now available! Check out Tango with Django 4!

This is the fourth edition of Tango with Django which has now been heavily revised and upgraded to make use of Django 2.x using Python 3.x. The book was first launched in October 2013 by Dr. Leif Azzopardi and Dr. David Maxwell while both were teaching web development at the University of Glasgow. The book has been used as the course text ever since, with literally thousands of undergraduate and postgraduate students using it over the years. Previous editions of the book are freely available at: www.tangowithdjango.com which has been used by over two million visitors!

In this edition you will learn how to build web applications use Django by building a simple app called Rango, a directory of categories and links. Through the process you will learn how to setup your Django projects, create models, views and mappings, as well as user authentication, templates, class based views and testing. Throughout the book, we provide workflows to get you into the Django mindset, reducing the learning curve, explaining the hows and whys of software development, and advocating best practices when developing your web apps. In addition to how to develop with Django, we've included chapters that explain how to incorporate CSS and Twitter's Bootstrap, Javascript and JQuery, and how to integrate external services, like Microsoft Azure's Bing Search API. We also cover how to deploy your Django application to PythonAnywhere.com.

So, if you want to learn Django and build web applications, then Tango with Django provides an all round end-to-end guide for beginners.

About the Authors

Leif Azzopardi
Leif Azzopardi and David Maxwell

Leif Azzopardi is passionate about Web Development, Web Design, Information Architecture and Software Engineering. His research interests are focused on Information Retrieval and Search Engine Technologies.

David Maxwell
David Maxwell

David Maxwell has a PhD in Computing Science from the University of Glasgow. During his time as a student, he taught Java, Python and Web Development. His research focused on Information Retrieval.


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Table of Contents

  • 1. Overview
    • 1.1 Why Work with this Book?
    • 1.2 What you will Learn
    • 1.3 Technologies and Services
    • 1.4 Rango: Initial Design and Specification
    • 1.5 Summary
  • 2. Getting Ready to Tango
    • 2.1 Python 3
    • 2.2 Virtual Environments
    • 2.3 The Python Package Manager
    • 2.4 Integrated Development Environment
    • 2.5 Version Control
    • 2.6 Testing your Implementation
  • 3. Django Basics
    • 3.1 Testing Your Setup
    • 3.2 Creating Your Django Project
    • 3.3 Creating a Django App
    • 3.4 Creating a View
    • 3.5 Mapping URLs
    • 3.6 Basic Workflows
  • 4. Templates and Media Files
    • 4.1 Using Templates
    • 4.2 Serving Static Media Files
    • 4.3 Serving Media
    • 4.4 Basic Workflow
  • 5. Models and Databases
    • 5.1 Rango’s Requirements
    • 5.2 Telling Django about Your Database
    • 5.3 Creating Models
    • 5.4 Creating and Migrating the Database
    • 5.5 Django Models and the Shell
    • 5.6 Configuring the Admin Interface
    • 5.7 Creating a Population Script
    • 5.8 Workflow: Model Setup
  • 6. Models, Templates and Views
    • 6.1 Workflow: A Data-Driven Page
    • 6.2 Showing Categories on Rango’s Homepage
    • 6.3 Creating a Details Page
  • 7. Forms
    • 7.1 Basic Workflow
    • 7.2 Page and Category Forms
  • 8. Working with Templates
    • 8.1 Using Relative URLs in Templates
    • 8.2 Dealing with Repetition
    • 8.3 Template Inheritance
    • 8.4 The render() Method and the request Context
    • 8.5 Custom Template Tags
    • 8.6 Summary
  • 9. User Authentication
    • 9.1 Setting up Authentication
    • 9.2 Password Hashing
    • 9.3 Password Validators
    • 9.4 The User Model
    • 9.5 Additional User Attributes
    • 9.6 Creating a User Registration View and Template
    • 9.7 Implementing Login Functionality
    • 9.8 Restricting Access
    • 9.9 Logging Out
    • 9.10 Tidying up the base.html Hyperlinks
    • 9.11 Taking it Further
  • 10. Cookies and Sessions
    • 10.1 Cookies, Cookies Everywhere!
    • 10.2 Sessions and the Stateless Protocol
    • 10.3 Setting up Sessions in Django
    • 10.4 A Cookie Tasting Session
    • 10.5 Client-Side Cookies: A Site Counter Example
    • 10.6 Session Data
    • 10.7 Browser-Length and Persistent Sessions
    • 10.8 Clearing the Sessions Database
    • 10.9 Basic Considerations and Workflow
  • 11. User Authentication with Django-Registration-Redux
    • 11.1 Setting up Django Registration Redux
    • 11.2 Functionality and URL mapping
    • 11.3 Setting up the Templates
  • 12. Bootstrapping Rango
    • 12.1 The Template
    • 12.2 Quick Style Change
  • 13. Adding Search to Rango
    • 13.1 The Bing Search API
    • 13.2 Adding Search Functionality
    • 13.3 Putting Search into Rango
  • 14. Making Rango Tango Exercises
    • 14.1 Tracking Page Clickthroughs
    • 14.2 Searching Within a Category Page
    • 14.3 Create and View User Profiles
  • 15. Making Rango Tango Hints
    • 15.1 Track Page Clickthroughs
    • 15.2 Searching Within a Category Page
    • 15.3 Creating a UserProfile Instance
    • 15.4 Class-Based Views
    • 15.5 Viewing your Profile
    • 15.6 Listing all Users
  • 16. JQuery Crash Course
    • 16.1 Including JQuery
    • 16.2 Testing your Setup
    • 16.3 Further DOM Manipulation Examples
    • 16.4 Debugging Hints
  • 17. AJAX in Django with JQuery
    • 17.1 AJAX and Rango
    • 17.2 Adding a “Like” Button
    • 17.3 Adding Inline Category Suggestions
    • 17.4 Further AJAX-ing
  • 18. Automated Testing
    • 18.1 Running Tests
    • 18.2 Examining Testing Coverage
  • 19. Deploying Your Project
    • 19.1 Creating a PythonAnywhere Account
    • 19.2 The PythonAnywhere Web Interface
    • 19.3 Creating a Virtual Environment
    • 19.4 Setting up your Web Application
    • 19.5 Log Files
  • 20. Final Thoughts
    • 20.1 Acknowledgements
  • Appendices
  • Setting up your System
    • Installing Python 3 and pip
    • Virtual Environments
    • Using pip
    • Version Control System
  • A Crash Course in UNIX-based Commands
    • Using the Terminal
    • Core Commands
  • A Git Crash Course
    • Why Use Version Control?
    • How Git Works
    • Setting up Git
    • Basic Commands and Workflow
    • Recovering from Mistakes
  • A CSS Crash Course
    • Including Stylesheets
    • Basic CSS Selectors
    • Element Selectors
    • Fonts
    • Colours and Backgrounds
    • Containers, Block-Level and Inline Elements
    • Basic Positioning
    • The Box Model
    • Styling Lists
    • Styling Links
    • The Cascade
    • Additional Reading
  • Notes

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