Django 3 By Example - Third Edition

By : Antonio Melé

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.

Preface

Who this book is for

What this book covers

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Building a Blog Application

Installing Django

Creating your first project

Designing the blog data schema

Creating an administration site for models

Working with QuerySets and managers

Building list and detail views

Creating templates for your views

Adding pagination

Using class-based views

Summary

Free Chapter

Enhancing Your Blog with Advanced Features

Sharing posts by email

Creating a comment system

Adding the tagging functionality

Retrieving posts by similarity

Summary

Extending Your Blog Application

Creating custom template tags and filters

Adding a sitemap to your site

Creating feeds for your blog posts

Adding full-text search to your blog

Summary

Building a Social Website

Creating a social website project

Using the Django authentication framework

User registration and user profiles

Building a custom authentication backend

Adding social authentication to your site

Summary

Sharing Content on Your Website

Creating an image bookmarking website

Posting content from other websites

Creating a detail view for images

Creating image thumbnails using easy-thumbnails

Adding AJAX actions with jQuery

Creating custom decorators for your views

Adding AJAX pagination to your list views

Summary

Tracking User Actions

Building a follow system

Building a generic activity stream application

Using signals for denormalizing counts

Using Redis for storing item views

Summary

Building an Online Shop

Creating an online shop project

Building a shopping cart

Registering customer orders

Launching asynchronous tasks with Celery

Summary

Managing Payments and Orders

Integrating a payment gateway

Exporting orders to CSV files

Extending the administration site with custom views

Generating PDF invoices dynamically

Summary

Extending Your Shop

Creating a coupon system

Adding internationalization and localization

Building a recommendation engine

Summary

Building an E-Learning Platform

Setting up the e-learning project

Building the course models

Creating models for diverse content

Creating a CMS

Managing course modules and their contents

Summary

Rendering and Caching Content

Displaying courses

Adding student registration

Accessing the course contents

Using the cache framework

Summary

Building an API

Building a RESTful API

Summary

Building a Chat Server

Creating a chat application

Real-time Django with Channels

Installing Channels

Writing a consumer

Routing

Implementing the WebSocket client

Enabling a channel layer

Modifying the consumer to be fully asynchronous

Integrating the chat application with existing views

Summary

Going Live

Creating a production environment

Implementing custom management commands

Summary

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Index

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Generating PDF invoices dynamically

Now that you have a complete checkout and payment system, you can generate a PDF invoice for each order. There are several Python libraries to generate PDF files. One popular library to generate PDFs with Python code is ReportLab. You can find information about how to output PDF files with ReportLab at https://docs.djangoproject.com/en/3.0/howto/outputting-pdf/.

In most cases, you will have to add custom styles and formatting to your PDF files. You will find it more convenient to render an HTML template and convert it into a PDF file, keeping Python away from the presentation layer. You are going to follow this approach and use a module to generate PDF files with Django. You will use WeasyPrint, which is a Python library that can generate PDF files from HTML templates.

Installing WeasyPrint

First, install WeasyPrint's dependencies for your operating system from https://weasyprint.readthedocs.io/en/latest/install.html....

Django 3 By Example - Third Edition

By : Antonio Melé

Django 3 By Example - Third Edition

By: Antonio Melé

Overview of this book

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Current Title:

Django 3 By Example - Third Edition

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Generating PDF invoices dynamically

Installing WeasyPrint