Book Image

Mastering Django: Core

By : Nigel George
Book Image

Mastering Django: Core

By: Nigel George

Overview of this book

Mastering Django: Core is a completely revised and updated version of the original Django Book, written by Adrian Holovaty and Jacob Kaplan-Moss - the creators of Django. The main goal of this book is to make you a Django expert. By reading this book, you’ll learn the skills needed to develop powerful websites quickly, with code that is clean and easy to maintain. This book is also a programmer’s manual that provides complete coverage of the current Long Term Support (LTS) version of Django. For developers creating applications for commercial and business critical deployments, Mastering Django: Core provides a complete, up-to-date resource for Django 1.8LTS with a stable code-base, security fixes and support out to 2018.
Table of Contents (33 chapters)
Mastering Django: Core
Credits
About the Author
www.PacktPub.com
Preface
Free Chapter
1
Introduction to Django and Getting Started

Template language review


First, let's quickly review a number of terms introduced in Chapter 3, Templates:

  • A template is a text document, or a normal Python string, that is marked up using the Django template language. A template can contain template tags and variables.

  • A template tag is a symbol within a template that does something. This definition is deliberately vague. For example, a template tag can produce content, serve as a control structure (an if statement or for loop), grab content from a database, or enable access to other template tags.

Template tags are surrounded by {% and %}:

        {% if is_logged_in %} 
            Thanks for logging in! 
        {% else %} 
            Please log in. 
        {% endif %} 
  • A variable is a symbol within a template that outputs a value.

  • Variable tags are surrounded by {{ and }}:

  • A context is a name->value mapping (similar to a Python dictionary) that is passed to a template.

  • A template renders a context by replacing...