Book Image

Django 3 By Example - Third Edition

By : Antonio Melé
Book Image

Django 3 By Example - Third Edition

By: Antonio Melé

Overview of this book

If you want to learn the entire process of developing professional web applications with Python and Django, then this book is for you. In the process of building four professional Django projects, you will learn about Django 3 features, how to solve common web development problems, how to implement best practices, and how to successfully deploy your applications. In this book, you will build a blog application, a social image bookmarking website, an online shop, and an e-learning platform. Step-by-step guidance will teach you how to integrate popular technologies, enhance your applications with AJAX, create RESTful APIs, and set up a production environment for your Django projects. By the end of this book, you will have mastered Django 3 by building advanced web applications.
Table of Contents (17 chapters)
15
Other Books You May Enjoy
16
Index

Accessing the course contents

You need a view for displaying the courses that students are enrolled on, and a view for accessing the actual course contents. Edit the views.py file of the students application and add the following code to it:

from django.views.generic.list import ListView
from courses.models import Course
class StudentCourseListView(LoginRequiredMixin, ListView):
    model = Course
    template_name = 'students/course/list.html'
    def get_queryset(self):
        qs = super().get_queryset()
        return qs.filter(students__in=[self.request.user])

This is the view to see courses that students are enrolled on. It inherits from LoginRequiredMixin to make sure that only logged in users can access the view. It also inherits from the generic ListView for displaying a list of Course objects. You override the get_queryset() method to retrieve only the courses that a student is enrolled on; you filter the QuerySet by the student's ManyToManyField...