Developing and Deploying a Complete Django Web Application

Overview

In this final course, we'll look at the JavaScript language and how it supports the Object-Oriented pattern, with a focus on the unique aspects of JavaScript's approach to OO. We'll provide an introduction to the jQuery library, which is widely used for in-browser manipulation of the Document Object Model (DOM) and event handling. You'll also learn about JavaScript Object Notation (JSON), which is commonly used as a syntax to exchange data between code running on the server (i.e., in Django) and code running in the browser (JavaScript/jQuery). You will continue to develop your classified ads application, adding features that make use of JavaScript, JQuery, and JSON. This course assumes you have completed the first three courses in the specialization.

Syllabus

Getting Started on Marketplace
Owned Rows

This module covers the important technique of marking rows in a data model as belonging to a particular user. With this information we can decide who can edit or view particular rows. We look at how we can use Django with object-oriented Python to build a reusable "owned rows" feature.

JavaScript

As we begin to add interactive elements to our web pages, we need to learn JavaScript. For students with a JavaScript background this will be a bit of review as we learn JavaScript from a Django perspective.

Object Oriented JavaScript

The Object-Oriented approach in JavaScript is different from Object Orientation in Python in some important ways. So we look at the unique features of the OO pattern in JavaScript. The high level concepts are the same between Python and JavaScript but the implementation details are different in important and subtle ways.

JavaScript and the Browser

We look at particular aspects of the JavaScript run-time in a browser including manipulation of the Document Object Model(DOM), timers and event handling.

Many-to-Many

The more advanced data modeling approach to remove replication of string data is the Many-To-Many data model. Sometimes a one-to-many model is not flexible enough to represent structures like course rosters. A Many-to-many model in essence models two on-to-many relationships.