Book Image

Django: Web Development with Python

By : Aidas Bendoraitis, Samuel Dauzon, Arun Ravindran
Book Image

Django: Web Development with Python

By: Aidas Bendoraitis, Samuel Dauzon, Arun Ravindran

Overview of this book

Data science is hot right now, and the need for multitalented developers is greater than ever before. A basic grounding in building apps with a framework as minimalistic, powerful, and easy-to-learn as Django will be a useful skill to launch your career as an entrepreneur or web developer. Django is a web framework that was designed to strike a balance between rapid web development and high performance. This course will take you on a journey to become an efficient web developer thoroughly understanding the key concepts of Django framework. This learning path is divided into three modules. The course begins with basic concepts of the Django framework. The first module, Django Essentials, is like a practical guide, filled with many real-world examples to build highly effective Django web application. After getting familiar with core concepts of Django, it's time to practice your learning from the first module with the help of over 90 recipes available in this module. In the second module, Web Development with Django Cookbook, you'll learn varying complexities to help you create multilingual, responsive, and scalable websites with Django. By the end of this module, you will have a good understanding of the new features added to Django 1.8 and be an expert at web development processes.The next step is to discover the latest best practices and idioms in this rapidly evolving Django framework. This is what you'll be learning in our third module, Django Design Patterns and Best Practices. This module will teach you common design patterns to develop better Django code. By the end of the module, you will be able to leverage the Django framework to develop a fully functional web application with minimal effort.
Table of Contents (6 chapters)

Chapter 5. Custom Template Filters and Tags

In this chapter, we will cover the following topics:

  • Following conventions for your own template filters and tags
  • Creating a template filter to show how many days have passed since a post was published
  • Creating a template filter to extract the first media object
  • Creating a template filter to humanize URLs
  • Creating a template tag to include a template if it exists
  • Creating a template tag to load a QuerySet in a template
  • Creating a template tag to parse content as a template
  • Creating a template tag to modify request query parameters

Introduction

As you know, Django has an extensive template system with features such as template inheritance, filters to change the representation of values, and tags for presentational logic. Moreover, Django allows you to add your own template filters and tags to your apps. Custom filters or tags should be located in a template-tag library file under the templatetags Python package in your app. Then, your template...