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Django Design Patterns and Best Practices

You're reading from   Django Design Patterns and Best Practices Industry-standard web development techniques and solutions using Python

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788831345
Length 282 pages
Edition 2nd Edition
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Author (1):
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Arun Ravindran Arun Ravindran
Author Profile Icon Arun Ravindran
Arun Ravindran
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Table of Contents (16) Chapters Close

Preface 1. Django and Patterns FREE CHAPTER 2. Application Design 3. Models 4. Views and URLs 5. Templates 6. Admin Interface 7. Forms 8. Working Asynchronously 9. Creating APIs 10. Dealing with Legacy Code 11. Testing and Debugging 12. Security 13. Production-Ready 14. Python 2 Versus Python 3 15. Other Books You May Enjoy

Jinja2


Jinja2 is very similar to DTL in syntax. But it has a slightly different philosophy in certain places. For instance, in DTL the method call is implied as in the following example:

{% for post in user.public_posts %} 
    ... 
{% endfor %} 

But in Jinja2, we invoke the public_posts method similar to a Python function call:

{% for post in user.public_posts() %} 
    ... 
{% endfor %} 

This means that in Jinja2 you can call functions with arguments, unlike DTL. Refer to the Jinja2 documentation for more such subtle differences.

Jinja2 is usually chosen for the following reasons:

  • Familiarity: If your template designers are already comfortable using Jinja2
  • Whitespace control: Jinja2 has finer control over whitespace after the tags get rendered
  • Customizability: Most aspects of Jinja2, from string defining markup to extensions, can be easily configured
  • Performance: Some benchmarks show Jinja2 is faster than Django
  • Autoescape: By default, Jinja2 disables XML/HTML autoescaping for performance

In most...

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