ViewSetIntrospector broken with DRF 2.4.3

[vil-s]

DRF issue: encode/django-rest-framework#1893

Since DRF 2.4.3, the CSRF exemption is added in the APIView's (and by extension ViewSet's) as_view method and no longer in dispatch. (See encode/django-rest-framework#1706 and encode/django-rest-framework#1887).

What happens now is that ViewSetIntrospector._resolve_methods's self.pattern.callback is not the view, but the view wrapped in a csrf_exempt decorator.

[ydaniv]

Alas! This is infact breaking all views. Any PR coming this way?

[tomchristie]

Pinging @marcgibbons - what do you reckon the status of rest-swagger is these days - likely to come back to maintaining it anytime?

[t16n]

hey joeatmatterport this seems to work for me thank you!

For Python v3:

    def _resolve_methods(self):
        callback = self.pattern.callback
        code_attr = '__code__'
        closure_attr = '__closure__'
        code = getattr(callback, code_attr)
        closure = getattr(callback, closure_attr)

        if code and getattr(code, 'co_name') == 'wrapped_view':
            # lets unwrap!
            view = getattr(closure[0], 'cell_contents')
            closure = getattr(view, closure_attr)
            code = getattr(view, code_attr)
            freevars = code.co_freevars

        elif code and getattr(code, 'co_name') == 'view':
            freevars = code.co_freevars
        else:
            raise RuntimeError(
                'Unable to use callback invalid closure/function specified.')

        return closure[freevars.index('actions')].cell_contents

[allardhoeve]

I fixed this by pulling #127, thanks!

[ariovistus]

fixed in develop.