Book Image

Web Development with Django - Second Edition

By : Ben Shaw, Saurabh Badhwar, Chris Guest, Bharath Chandra K S
4.7 (3)
Book Image

Web Development with Django - Second Edition

4.7 (3)
By: Ben Shaw, Saurabh Badhwar, Chris Guest, Bharath Chandra K S

Overview of this book

Do you want to develop reliable and secure applications that stand out from the crowd without spending hours on boilerplate code? You’ve made the right choice trusting the Django framework, and this book will tell you why. Often referred to as a “batteries included” web development framework, Django comes with all the core features needed to build a standalone application. Web Development with Django will take you through all the essential concepts and help you explore its power to build real-world applications using Python. Throughout the book, you’ll get the grips with the major features of Django by building a website called Bookr – a repository for book reviews. This end-to-end case study is split into a series of bitesize projects presented as exercises and activities, allowing you to challenge yourself in an enjoyable and attainable way. As you advance, you'll acquire various practical skills, including how to serve static files to add CSS, JavaScript, and images to your application, how to implement forms to accept user input, and how to manage sessions to ensure a reliable user experience. You’ll cover everyday tasks that are part of the development cycle of a real-world web application. By the end of this Django book, you'll have the skills and confidence to creatively develop and deploy your own projects.
Table of Contents (19 chapters)

Creating or editing Django models

We’ve seen how to define a form, and in Chapter 2, Models and Migrations, you learned how to create Django model instances. By using these things together, you can build a view that displays a form and also saves a model instance to the database. This gives you an easy way to save data without having to write a lot of boilerplate code or create custom forms. In Bookr, we will use this method to allow users to add reviews without requiring access to the Django admin site. Without using ModelForm, you can do something like this:

  • You can create a form based on an existing model; for example, Publisher. The form would be called PublisherForm.
  • You can manually define the fields on PublisherForm, using the same rules defined on the Publisher model, as shown here:
    class PublisherForm(forms.Form):
        name = forms.CharField(max_length=50)
        website = forms.URLField()
        …...