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Django 1.0 Template Development

By : Scott Newman

4 (2)

Django 1.0 Template Development

4 (2)

By: Scott Newman

Overview of this book

This book is designed for readers who learn by doing and employs many examples and screenshots to let the reader dig in and start coding. This book isn't designed to be a reference; instead it has a practical, example-driven approach that teaches you by following along with the examples in the chapters. When you have completed this book, you will fully understand how the template system works, how to extend it when you have specialized needs, and how to optimize the performance and usability of your content. This book is for web developers and template authors who want to fully understand and utilize the Django template system. The reader should have completed the introductory tutorials on the Django project's website and some experience with the framework will be very helpful. Basic knowledge of Python and HTML is assumed.

Django 1.0 Template Development

Django 1.0 Template Development

Credits

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

Preface

Preface

Free Chapter

An Introduction to the Django Template System

An Introduction to the Django Template System

What are templates?

Overview of the Django template system

Exploring how Django handles requests

Understanding the template system syntax

Creating our demo application

Summary

Views, URLs, and Generic Views

Views, URLs, and Generic Views

An overview

Creating the application

Mapping URLs to views

Creating views

Putting the views together

Comparing views and generic views

Summary

Template Context

Template Context

The context explained

Using the context values in your templates

Context rendering shortcuts

Context processors

Summary

Using the Built-In Tags and Filters

Using the Built-In Tags and Filters

Built-in filter reference

Built-in tag reference

Summary

Loading and Inheriting Templates

Loading and Inheriting Templates

Configuring the template system

Finding a home for the template files

Working with the template loaders

Setting up the error handling templates

Breaking templates into reusable pieces

Extending templates with inheritance

Inheriting from multiple child templates

Appending to blocks

Template strategy

Using include files

Summary

Serving Multiple Templates

Serving Multiple Templates

Considering the different approaches

Setting up our example

Serving printable pages

Creating site themes

Serving different templates by domain name

Redirecting users to the mobile site (optional)

Summary

Custom Tags and Filters

Custom Tags and Filters

Examining the built-in tags and filters

Writing your own template filters

Writing your own template tags

Summary

Pagination

Pagination

An Overview

Verifying our application setup

Exploring pagination using the Django shell

Using pagination in your views

Putting navigation into the templates

Pagination with generic views

Summary

Customizing the Admin Look and Feel

Customizing the Admin Look and Feel

Overriding the admin templates

Customizing the admin header

Adding a new link box to the admin

Customizing the admin color scheme

Summary

Caching Your Pages

Caching Your Pages

An overview

Exploring the available cache systems

Setting up your cache system

Caching individual views

Caching pieces of templates

Low-level caching

Caching your whole site

General caching strategies

Working with outside caches

Summary

Internationalization

Internationalization

Exploring i18n

Creating an example application

Configuring your project for i18n

Installing libraries for i18n translation

Marking strings as translatable

Creating message files

Enabling automatic language preference

Summary

Index

Index

Setting up your cache system

Now that you've seen the various cache backends that Django offers, we can now start implementing the code to work with them. Regardless of the backend you chose, the code will be identical.

Configuring the cache backend

To tell Django which backend we intend to use, we will set a variable called CACHE_BACKEND in our mycompany/settings.py file. Each backend uses a slightly different value, so we'll run through each separately.

Database caching

In order to use the database caching backend, you also have to run the createcachetable command from the manage.py file. This example uses my_cache_table as the name of the table, but you're free to use whatever you like:

$ python manage.py createcachetable my_cache_table

Once you have your cache table set up, add the backend to your mycompany/settings.py file:

CACHE_BACKEND = 'db://my_cache_table'

Filesystem caching

Filesystem caching requires very little setup, and the backend points to an absolute directory path on your filesystem...

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