Book Image

Django Project Blueprints

By : Asad Jibran Ahmed
Book Image

Django Project Blueprints

By: Asad Jibran Ahmed

Overview of this book

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.
Table of Contents (15 chapters)
Django Project Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Searching with aggregations


The user interaction that we would like to have is this: the user opens the search page or does a search and sees the list of category links. The user then clicks on one of those links and sees only products from those categories, with the user's previous search applied. So if the user searched for products with price between 100 and 200 and then clicked on one of the category links, the new search should show only products from that category while still applying the price filtering.

In order to achieve this, we need a way to create the category links so that the current search is preserved. We can pass the category to HomeView as another GET parameter. So we need to take the current GET parameters (which make up the current search) and add our category name to the end of it as another parameter.

Unfortunately, Django does not have a built-in way to achieve this. There are a number of solutions. You could build a custom template tag that adds parameters to the end...