def put_update()

in gnm_deliverables/views/metadata_views.py [0:0]

• 26 lines of code
• 5 McCabe index (conditional complexity)

    def put_update(self, request, asset, project_id, asset_id):
        existing = self.metadata_model.objects.get(
            deliverableasset__deliverable__pluto_core_project_id__exact=project_id,
            deliverableasset=asset_id)

        current_etag = existing.etag.strftime('%Y-%m-%dT%H:%M:%S.%fZ')
        if current_etag == request.data.get('etag', None):
            del request.data['etag']
            put = self.metadata_serializer(existing, data=request.data)
            if put.is_valid():
                put.validated_data['etag'] = Now()
                update_count = self.metadata_model.objects.filter(pk=existing.id,
                                                                  etag=current_etag).update(
                    **put.validated_data)
                if update_count == 0:
                    return Response({"status": "error", "detail": "etag conflict"}, status=409)
                elif update_count == 1:
                    updated = self.metadata_model.objects.get(pk=existing.id)
                    return Response(
                        {"status": "ok", "data": self.metadata_serializer(updated).data},
                        status=200)
                else:
                    return Response({"status": "error", "detail": "internal"}, status=500)
            else:
                return Response({"status": "error", "detail": put.errors}, status=400)
        else:
            return Response({"status": "error", "detail": "etag conflict"}, status=409)