7848 fix the spectacular test failure

netbox/core/api/schema.py

@@ -158,6 +158,11 @@ class NetBoxAutoSchema(AutoSchema):
         fields = {} if hasattr(serializer, 'child') else serializer.fields
         remove_fields = []
 
+        """
+        If you get a failure here for: AttributeError: 'cached_property' object has no attribute 'items'
+        it is probably because you are using a viewsets.ViewSet for the API View and are defining a
+        serializer_class.  You will also need to define a get_serializer function like GenericAPIView.
+        """
         for child_name, child in fields.items():
             # read_only fields don't need to be in writable (write only) serializers
             if 'read_only' in dir(child) and child.read_only:

netbox/core/api/views.py

@@ -104,6 +104,15 @@ class BaseRQViewSet(viewsets.ViewSet):
         serializer = self.serializer_class(data, many=True, context={'request': request})
         return paginator.get_paginated_response(serializer.data)
 
+    def get_serializer(self, *args, **kwargs):
+        """
+        Return the serializer instance that should be used for validating and
+        deserializing input, and for serializing output.
+        """
+        serializer_class = self.get_serializer_class()
+        kwargs['context'] = self.get_serializer_context()
+        return serializer_class(*args, **kwargs)
+
 
 class BackgroundQueueViewSet(BaseRQViewSet):
     """