Using the Django messages framework
Let's begin by introducing the Django Messages Framework, which is a framework used to provide session-based messages to the user. A flash message is a one-time notification message displayed directly to the user and is the kind of message that this framework creates. What we can do with this is render messages to the user anywhere we put the code inside our templates, whether that be in a modal popup or a message that drops down from the top of the page or comes up from the bottom of the page. It can even appear above or below a form that the user is submitting.
The chapter_7 FormClassView class will be the primary working class throughout this chapter, as it will be used primarily to trigger the actions we will be writing. We will be writing the methods to perform those actions in the corresponding ContactForm class used by that FormClassView class of the chapter_7 app.
Before we start writing those classes, we will begin by enabling...
