Book Image

Django 3 Web Development Cookbook - Fourth Edition

By : Aidas Bendoraitis, Jake Kronika
Book Image

Django 3 Web Development Cookbook - Fourth Edition

By: Aidas Bendoraitis, Jake Kronika

Overview of this book

Django is a web framework for perfectionists with deadlines, designed to help you build manageable medium and large web projects in a short time span. This fourth edition of the Django Web Development Cookbook is updated with Django 3's latest features to guide you effectively through the development process. This Django book starts by helping you create a virtual environment and project structure for building Python web apps. You'll learn how to build models, views, forms, and templates for your web apps and then integrate JavaScript in your Django apps to add more features. As you advance, you'll create responsive multilingual websites, ready to be shared on social networks. The book will take you through uploading and processing images, rendering data in HTML5, PDF, and Excel, using and creating APIs, and navigating different data types in Django. You'll become well-versed in security best practices and caching techniques to enhance your website's security and speed. This edition not only helps you work with the PostgreSQL database but also the MySQL database. You'll also discover advanced recipes for using Django with Docker and Ansible in development, staging, and production environments. By the end of this book, you will have become proficient in using Django's powerful features and will be equipped to create robust websites.
Table of Contents (15 chapters)

Uploading images via Ajax

With the default file input fields, it quickly becomes obvious that there is a lot we could do to improve the user experience:

  • First, only the path to the selected file is displayed within the field, whereas people want to see what they have chosen right after selecting the file.
  • Second, the file input itself is generally too narrow to show much of the path selected and reads from the left end. As a result, the filename is rarely visible within the field.
  • Finally, if the form has validation errors, nobody wants to select the files again; the file should still be selected in the form with validation errors.

In this recipe, we will see how the file uploads could be improved.

Getting ready

Let&apos...