add operation_keys to get_summary_and_description method

[Amoki]

I use operation_keys to override the get_operation_id method and be able to configure my operation ids with less overhead than method_decoration + swagger_decorator + operation_id.
eg:

class UserViewSet(ModelViewSet):
    queryset = User.objects.all()
    operations = {
        "list": "getUsers",
        "read": "getUser",
        "create": "createUser",
        "delete": "deleteUser",
    }

I'd like to do something similar with the description and summary for each path but the method get_summary_and_description don't have access to the operation_keys.

[axnsan12]

Can't you use self.view.action?

[Amoki]

Unfortunately, retrieving the action is more complex than that: https://github.com/encode/django-rest-framework/blob/master/rest_framework/schemas/generators.py#L412
Operation keys have also more information

[axnsan12]

Fair enough. In that case, I would rather move the operation_keys parameter to the SwaggerAutoSchema constructor and set it as an instance attribute, to make it available to any method which might need it without changing all signatures.

Any change to method signatures must also take backward compatibility into account, both for callers and for overriders.