Enable brief API output utilizing nested serializers

netbox/project-static/js/forms.js

@@ -82,7 +82,7 @@ $(document).ready(function() {
             }
 
             if ($(parent).val() || $(parent).attr('nullable') == 'true') {
-                var api_url = child_field.attr('api-url') + '&limit=0';
+                var api_url = child_field.attr('api-url') + '&limit=0&brief';
                 var disabled_indicator = child_field.attr('disabled-indicator');
                 var initial_value = child_field.attr('initial');
                 var display_field = child_field.attr('display-field') || 'name';

netbox/utilities/api.py

@@ -192,6 +192,19 @@ class ModelViewSet(_ModelViewSet):
 
         return super(ModelViewSet, self).get_serializer(*args, **kwargs)
 
+    def get_serializer_class(self):
+
+        # If 'brief' has been passed as a query param, find and return the nested serializer for this model, if one
+        # exists
+        request = self.get_serializer_context()['request']
+        if 'brief' in request.query_params:
+            serializer_class = get_serializer_for_model(self.queryset.model, prefix='Nested')
+            if serializer_class is not None:
+                return serializer_class
+
+        # Fall back to the hard-coded serializer class
+        return self.serializer_class
+
 
 class FieldChoicesViewSet(ViewSet):
     """