Permission class based on action

[arayik-yervandyan]

A lot of times in my experience I had to limit access to view actions based on user role. Django-rest-framework supports only permission classes on the entire view class, so I used to add custom implementation for limiting access to the action.

Currently, I am using the StackOverflow answer with some modifications.
Usage is like this
permission_classes_by_action = {'list': [IsAdmin ]}

I would like to create a PR to implement this logic and give the ability to users to limit access to actions based on roles

Questions?

1. How do you manage this type of logic?
2. Do we need to have this inside Django-rest-framework?

P.S. This is my first contribution attempt so please guide me if I am posting this in the wrong way or at the wrong time 😄