View patterns

Let's take a look at some common design patterns seen in designing views. 

Pattern — access controlled views

Problem: Pages need to be conditionally accessible based on whether the user was logged-in, is a member of staff, or any other condition.

Solution: Use mixins or decorators to control access to the view.

Problem details

Most websites have pages that can be accessed only if you are logged in. Certain other pages are accessible to anonymous or public visitors. If an anonymous visitor tries to access a page which needs a logged-in user...