You can also route only read-only methods in urls.py, for example via:

    url(
        r'path/$',
        TheModelViewSetView.as_view({"get": "list"}),
        name="thename"
    )

or "retrieve" instead of "list" for a route which includes PK.

This of course makes the entire path read-only so it's not a way to make some fields writable and others not.