Closes #4940: Added an occupied field to rack unit representations for rack elevation views

netbox/dcim/api/serializers.py

@@ -165,6 +165,7 @@ class RackUnitSerializer(serializers.Serializer):
     name = serializers.CharField(read_only=True)
     face = ChoiceField(choices=DeviceFaceChoices, read_only=True)
     device = NestedDeviceSerializer(read_only=True)
+    occupied = serializers.BooleanField(read_only=True)
 
 
 class RackReservationSerializer(TaggedObjectSerializer, ValidatedModelSerializer):

netbox/dcim/api/views.py

@@ -189,6 +189,7 @@ class RackViewSet(CustomFieldModelViewSet):
             # Return a JSON representation of the rack units in the elevation
             elevation = rack.get_rack_units(
                 face=data['face'],
+                user=request.user,
                 exclude=data['exclude'],
                 expand_devices=data['expand_devices']
             )