def attempt_create_bundle()

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

• 33 lines of code
• 13 McCabe index (conditional complexity)

    def attempt_create_bundle(self, bundle, auto_name, attempt_number, request):
        """
        Function to attempt to create a bundle.
        :param bundle: DeliverableSerializer object.
        :param auto_name: Boolean indicating if auto naming should be attempted if there is a problem with the name.
        :param attempt_number: Number of attempts.
        :param request: request object.
        :return: a Response object indicating the outcome of the attempt.
        """
        if attempt_number > 200:
            return Response({"status": "conflict", "field": "name", "detail": "This field must be a unique value. Two hundred attempts where made at automatically setting a unique value for it."}, status=409)

        if not bundle.is_valid():
            for field, error_details in bundle.errors.items():
                uniqueness_errors = list(filter(lambda entry: entry.code == 'unique', error_details))
                if (len(uniqueness_errors) > 0) and (field == "name") and auto_name:
                    data_to_set = copy.copy(request.data)
                    new_name = "{0}{1}".format(request.data["name"], attempt_number)
                    data_to_set["name"] = new_name
                    logger.debug('About to attempt to create a bundle with the name: {0}'.format(new_name))
                    new_bundle = DeliverableSerializer(data=data_to_set)
                    return self.attempt_create_bundle(new_bundle, auto_name, attempt_number + 1, request)
                if len(uniqueness_errors) > 0:
                    return Response({"status": "conflict", "field": field, "detail": "This field must be a unique value"}, status=409)
            return Response({"status": "error", "detail": str(bundle.errors)}, status=400)
        # If we get here then the request is definitely valid so proceed.
        name = bundle.validated_data['name']
        try:
            path, created = create_folder_for_deliverable(name)
            if created and path:
                logger.info('Created folder for deliverable at: %s', path)
                bundle.save()
                return Response({"status": "ok", "data": bundle.data}, status=200)
            elif not created and path:
                logger.error('The folder already exists for deliverable at: %s', path)
                bundle.save()
                return Response({"status": "ok", "data": bundle.data}, status=200)
            else:
                logger.error('Failed to create folder for deliverable at:  %s', path)
                return Response({"status": "error", "data": bundle.data}, status=409)
        except OSError as e:
            logger.error('Failed to create folder for {name}: {e}'.format(name=name, e=e.strerror))
            return Response({"status": "error", "data": e.strerror}, status=500)