This book presents the implementation of web-based e-commerce applications using Django, the powerful Python-based web framework. It emphasizes common Django coding patterns, writing reusable apps, and leveraging community resources and open-source tools.
Django and Python can be used to build everything from quick application prototypes in an afternoon, to full-blown production applications with long-term lifecycles.
Chapter 1, Django and E-commerce Development, introduces Django, provides a quick overview of its history, and evaluates it as an e-commerce platform. We also introduce the concept of Django applications versus "apps", how to code for reusability, and why Django's project layout allows us to write more powerful, flexible software. Finally, we will begin configuring the sample project built-upon throughout the book.
Chapter 2, Setting Up Shop in 30 Minutes, shows us how to create a very simple, but complete, e-commerce store in 30 minutes. This includes the creation of a product catalog and categorization system using Django models, using built-in generic views to expose our catalog to the Web, and attaching a simple Google Checkout integration.
Chapter 3, Handling Customers and Their Orders, deals with customer and order management, including the use of Django's auth module, registration and profile forms. We'll also build a simple order-taking system and connect it to our customer data. Finally, we demonstrate a quick and easy way of handling customer product reviews.
Chapter 4, Building Payment Processors, starts to extend the simple system built thus far by creating a "pluggable" payment processing system, and updating our Google Checkout support to take advantage of it. Finally, this chapter discusses the Django pattern of class-based views and how to use them with our payment processing framework.
Chapter 5, From Payment to Porch: An Order Pipeline, adds additional information to our order-taking system, including tracking status and shipping, plus automatic calculation of shipping and handling charges. We integrate these new features into a simple CRM tool that would allow staff to look-up order details and monitor status.
Chapter 6, Searching the Product Catalog, explores the options for adding search capabilities to our catalog, including use of Django with, Sphinx, Solr, Whoosh, Haystack, and Xapian search. We integrate several of these search engines into our project and present the Haystack community-project that allows generic integration of a variety of search-engine backends.
Chapter 7, Data and Report Generation, covers report generation and working with our application's data. This includes serializing and exposing data via a web API, generating RSS and Atom feeds, and the basics of Salesforce integration. We also use Python charting modules to automatically generate PDF-based reports.
Chapter 8, Creating Rich, Interactive UIs, provides an overview of JavaScript and AJAX integration with our Django project. We discuss how to expose our Django model data as JSON and write clean JavaScript to enhance our user interfaces. We finish by demonstrating a simple AJAX rating tool.
Chapter 9, Selling Digital Goods, presents digital goods and the various tools and APIs to sell them. Digital goods include products, like music or video media, which are sold and distributed electronically. We cover using Amazon S3 for storage with Django and integrating with the Amazon Flexible Payment Services, which offers an API for handling micropayments.
Chapter 10, Deployment and Maintenance Strategies, offers us a variety of pointers for configuring, deploying, and maintaining our Django applications. This includes setting up Apache with mod_wsgi, automating a deployment process with fabric, handling virtual environments, and building distributable modules.