Django Unleashed

2379 Pages·2015·58.59 MB·English

by  Andrew Pinkham

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Django Unleashed
Andrew Pinkham
800 East 96th Street, Indianapolis, Indiana 46240 USA
Django Unleashed
Copyright © 2016 by Pearson Education, Inc.
All rights reserved. No part of this book shall be reproduced, stored in a retrieval
system, or transmitted by any means, electronic, mechanical, photocopying,
recording, or otherwise, without written permission from the publisher. No
patent liability is assumed with respect to the use of the information contained
herein. Although every precaution has been taken in the preparation of this book,
the publisher and author assume no responsibility for errors or omissions. Nor is
any liability assumed for damages resulting from the use of the information
contained herein.
ISBN-13: 978-0-321-98507-1
ISBN-10: 0-321-98507-9
The Library of Congress cataloging-in-publication data is available at
http://lccn.loc.gov/2015033839.
Printed in the United States of America
First printing, October 2015
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Contents
Preface
Acknowledgments
About the Author
I Django’s Core Features
1 Starting a New Django Project: Building a Startup Categorizer with
Blog
1.1 Introduction
1.2 Website Basics
1.3 Understanding Modern Websites
1.4 Building Modern Websites: The Problems That Frameworks Solve and
Their Caveats
1.5 Django: Python Web Framework
1.6 Defining the Project in Part I
1.7 Creating a New Django Project and Django Apps
1.8 Putting It All Together
2 Hello World: Building a Basic Webpage in Django
2.1 Introduction
2.2 Creating and Integrating a New App
2.3 Building Hello World
2.4 Displaying Hello World
2.5 Controller Limitations: The Advantages of Models and Views
2.6 Removing Our Helloworld App from Our Project
2.7 Putting It All Together
3 Programming Django Models and Creating a SQLite Database
3.1 Introduction
3.2 Why Use a Database?
3.3 Organizing Our Data
3.4 Specifying and Organizing Data in Django Using Models
3.5 Using Django to Automatically Create a SQLite Database with
manage.py
3.6 Manipulating Data in the Database: Managers and QuerySets
3.7 String Case Ordering
3.8 Putting It All Together
4 Rapidly Producing Flexible HTML with Django Templates
4.1 Introduction
4.2 Revisiting Hello World: The Advantages of Templates
4.3 Understanding Django Templates and Their Goals
4.4 Choosing a Format, an Engine, and a Location for Templates
4.5 Building a First Template: A Single Tag Object
4.6 Building the Rest of Our App Templates
4.7 Using Template Inheritance for Design Consistency
4.8 Using Templates in Python with the Template, Context, and
loader Classes
4.9 Putting It All Together
5 Creating Webpages with Controllers in Django: Views and URL
Configurations
5.1 Introduction
5.2 The Purpose of Views and URL Configurations
5.3 Step-by-Step Examination of Django’s Use of Views and URL
Configurations
5.4 Building Tag Detail Webpage
5.5 Generating 404 Errors for Invalid Queries
5.6 Shortening the Development Process with Django View Shortcuts
5.7 URL Configuration Internals: Adhering to App Encapsulation
5.8 Implementing the Views and URL Configurations to the Rest of the Site
5.9 Class-Based Views
5.10 Redirecting the Homepage