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- Herausgeber: Packt Publishing
- Kategorie: Wissenschaft und neue Technologien
- Sprache: Englisch
Develop stunning web application projects with the Django framework
About This Book
- Build six exciting projects and use them as a blueprint for your own work
- Extend Django's built-in models and forms to add common functionalities into your project, without reinventing the wheel
- Gain insights into the inner workings of Django to better leverage it
Who This Book Is For
If you are a Django web developer able to build basic web applications with the framework, then this book is for you. This book will help you gain a deeper understanding of the Django web framework by guiding you through the development of seven amazing web applications.
What You Will Learn
- Create a blogging platform and allow users to share posts on different blogs
- Prioritise user-submitted content with an intelligent ranking algorithm based on multiple factors
- Create REST APIs to allow non-browser based usage of your web apps
- Customize the Django admin to quickly create a full-featured and rich content management system
- Use Elasticsearch with Django to create blazing fast e-commerce websites
- Translate your Django applications into multiple languages
- Dive deep into Django forms and how they work internally
In Detail
Django is a high-level web framework that eases the creation of complex, database-driven websites. It emphasizes on the reusability and pluggability of components, rapid development, and the principle of don't repeat yourself. It lets you build high-performing, elegant web applications quickly.
There are several Django tutorials available online, which take as many shortcuts as possible, but leave you wondering how you can adapt them to your own needs. This guide takes the opposite approach by demonstrating how to work around common problems and client requests, without skipping the important details. If you have built a few Django projects and are on the lookout for a guide to get you past the basics and to solve modern development tasks, this is your book.
Seven unique projects will take you through the development process from scratch, leaving no stone unturned. In the first two projects, you will learn everything from adding ranking and voting capabilities to your App to building a multiuser blog platform with a unique twist. The third project tackles APIs with Django and walks us through building a Nagios-inspired infrastructure monitoring system. And that is just the start!
The other projects deal with customizing the Django admin to create a CMS for your clients, translating your web applications to multiple languages, and using the Elasticsearch search server with Django to create a high performing e-commerce web site. The seventh chapter includes a surprise usage of Django, and we dive deep into the internals of Django to create something exciting!
When you're done, you'll have consistent patterns and techniques that you can build on for many projects to come.
Style and approach
This easy-to-follow guide is full of examples that will take you through building six very different web applications with Django. The code is broken down into manageable bites and then thoroughly explained.
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Seitenzahl: 301
Veröffentlichungsjahr: 2016
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Table of Contents
Django Project Blueprints
Django Project Blueprints
Copyright © 2016 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: May 2016
Production reference: 1240516
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-78398-542-5
www.packtpub.com
Credits
Author
Asad Jibran Ahmed
Reviewer
Jaakko Tulkki
Commissioning Editor
Julian Ursell
Acquisition Editor
Larissa Pinto
Content Development Editor
Parshva Sheth
Technical Editor
Danish Shaikh
Copy Editor
Tasneem Fatehi
Project Coordinator
Nikhil Nair
Proofreader
Safis Editing
Indexer
Mariammal Chettiyar
Production Coordinator
Arvindkumar Gupta
Cover Work
Arvindkumar Gupta
About the Author
Asad Jibran Ahmed is an experienced programmer who has worked mostly with Django-based web applications for the past 5 years. Based in Dubai, UAE, he has worked with some of the biggest web properties in the region, including Dubizzle, the number one classifieds platform in UAE; Nabbesh, one of the top freelancing platforms in the MENA region; and Just Property, a hot and rising name in the property portal space of the region.
His experience with such big names has given him a keen insight into how to design performant, stable, and user friendly web applications, all the while using programming practices that make sure that the code base is maintainable for years.
I'd like to thank my parents for all the love and support they gave me when I was playing around with computers as a child. If it had not been for their encouragement in those early years, I might not be a programmer today, and this book might not exist.
Also, to all my siblings and friends, I'd like to say thank you for putting up with it all.
About the Reviewer
Jaakko Tulkki is currently based in Madrid, Spain, where he is working as a Python developer. He has also worked in start-ups. Jaakko is currently finalizing his MSc degree in software engineering. Python is one of his favorite tools because he finds it a very productive language.
Jaakko works for Sainsbury's in Manchester, UK.
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Preface
Django is perhaps one of the most popular web development frameworks out there today. It is the framework that most Python developers reach for when they have any sizeable web application to develop.
With its proven track record of performance, scalability, and security, and its famous batteries-included approach, Django is used by some of the biggest names in the industry, including Instagram, Pinterest, and National Geographic.
This book is intended for people who have had a passing introduction to Django and a very basic idea of how to create a simple website with it. It will show you how to take your skills to the next level, developing applications as complex as e-commerce sites with lightning-fast search.
What this book covers
Chapter 1, Blueblog – A Blogging Platform, gets you started with Django and introduces the basic concepts of how to use the framework. It also introduces you to the development techniques used in the rest of the book.
Chapter 2, Discuss – A Hacker News Clone, walks you through creating a web application in the style of the popular Hacker News discussion forum. We look at advanced techniques to sort and rank the content of a web application based on user feedback, and then we look at spam prevention techniques.
Chapter 3, Djagios – a Nagios Clone in Django, covers the creation of a Nagios-like application using Django that can monitor and report on the status of remote server systems.
Chapter 4, A Car Rental App, shows you how to create a car rental application and customize the Django admin application to provide our users with a fully-featured Content Management System.
Chapter 5, Multilingual Movie DataBase, helps you create an IMDB-style web listing of movies, allowing user comments and reviews on the movies. The main focus of this chapter is allowing internationalized and localized versions of your web applications available in multiple languages.
Chapter 6, Daintree – An E-commerce site, shows you how to create an Amazon-like e-commerce website with lightning-fast search by utilizing the Elasticsearch search server software with Django.
Chapter 7, Form Mason – a Monkey of your own, helps you create a complicated and interesting web application that allows users to dynamically define web forms and then ask other people to respond to those forms, which is similar in nature to SurveyMonkey and other such sites.
Appendix, Development Environment Setup Details and Debugging Techniques, here we will look into the details of the setup, and I will explain each of the steps that we took. We will also see a technique for debugging Django applications.
What you need for this book
To create and run all the web applications that we will develop throughout the book, you will need working copies of the following software:
You can download the Python programming language for your operating system from https://www.python.org/downloads/. You will need Python 3 to follow the examples in this book.
You can find the instructions to install the pip package management tool at https://pip.pypa.io/en/stable/installing/.
You can install virtualenv by following the instructions at https://virtualenv.pypa.io/en/latest/installation.html.
Who this book is for
If you are a Django web developer able to build basic web applications with the framework, then this book is for you. This book will help you gain a deeper understanding of the Django web framework by guiding you through the development of six amazing web applications.
Conventions
In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We can include other contexts through the use of the include directive."
A block of code is set as follows:
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
Any command-line input or output is written as follows:
New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Clicking the Next button moves you to the next screen."
Note
Warnings or important notes appear in a box like this.
Tip
Tips and tricks appear like this.
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Questions
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Chapter 1. Blueblog – a Blogging Platform
We are going to start with a simple blogging platform in Django. In recent years, Django has emerged as one of the clear leaders in web frameworks. When most people decide to start using a web framework, their searches lead them to either Ruby on Rails (RoR) or Django. Both are mature, stable, and extensively used. It appears that the decision to use one or the other depends mostly on which programming language you're familiar with. Rubyists go with RoR, Pythonistas go with Django. In terms of features, both can be used to achieve the same results, although they have different approaches to how things are done.
One of the most popular blogging platforms these days is Medium, widely used by a number of high profile bloggers. Its popularity stems from its elegant theme, and simple-to-use interface. I'll walk you through creating a similar application in Django, with a few surprise features that most blogging platforms don't have. This will give you a taste of things to come, and show you just how versatile Django can be.
Before starting any software development project, it's a good idea to have a rough roadmap of what we would like to achieve. Here's a list of features that our blogging platform will have:
I know this seems like a lot of work, but Django comes with a couple of contrib packages that speed up our work considerably.
The contrib packages
The contrib packages are a part of Django that contain some very useful applications that the Django developers decided should be shipped with Django. The included applications provide an impressive set of features, including some that we'll be using in this application:
Note
There are a lot more goodies in the contrib module. I suggest you take a look at the complete list at https://docs.djangoproject.com/en/stable/ref/contrib/#contrib-packages.
I usually end up using at least three of the contrib packages in all my Django projects. They provide often-required features like user registration and management, and free you to work on the core parts of your project, providing a solid foundation to build upon.
