Introducing Django views
You now have everything set up to start writing your own Django views and configure the URLs that will map to them. As we saw earlier in this chapter, a view is simply a function that takes an HttpRequest instance (built by Django) and (optionally) some parameters from the URL. It will then perform some operations, such as fetching data from a database. Finally, it returns HttpResponse.
To use our Bookr app as an example, we might have a view that receives a request for a certain book. It queries the database for this book, and then returns a response containing an HTML page, showing information about the book. Another view could receive a request to list all the books, and then return a response with another HTML page containing this list. Views can also create or modify data; another view could receive a request to create a new book, and it would then add the book to the database and return a response with HTML that displays the new book’s information...
