Refactor to use schema extension

netbox/core/api/schema.py

@@ -2,12 +2,13 @@
 import typing
 from collections import OrderedDict
 
-from drf_spectacular.extensions import OpenApiSerializerFieldExtension
+from drf_spectacular.extensions import OpenApiSerializerFieldExtension, OpenApiSerializerExtension, _SchemaType
 from drf_spectacular.openapi import AutoSchema
 from drf_spectacular.plumbing import (
     build_basic_type, build_choice_field, build_media_type_object, build_object_type, get_doc,
 )
 from drf_spectacular.types import OpenApiTypes
+from drf_spectacular.utils import Direction
 
 from netbox.api.fields import ChoiceField
 from netbox.api.serializers import WritableNestedSerializer
@@ -271,3 +272,20 @@ def map_serializer_field(self, auto_schema, direction):
             return component.ref if component else None
         else:
             return build_basic_type(OpenApiTypes.INT)
+
+
+class FixIntegerRangeSerializerSchema(OpenApiSerializerExtension):
+    target_class = 'netbox.api.fields.IntegerRangeSerializer'
+
+    def map_serializer(self, auto_schema: 'AutoSchema', direction: Direction) -> _SchemaType:
+        return {
+            'type': 'array',
+            'items': {
+                'type': 'array',
+                'items': {
+                    'type': 'integer',
+                },
+                'minItems': 2,
+                'maxItems': 2,
+            },
+        }

netbox/netbox/api/fields.py

@@ -158,29 +158,7 @@ def __init__(self, relation, **kwargs):
         super().__init__(**kwargs)
 
 
-_integer_range_schema = {
-    'type': 'array',
-    'items': {
-        'type': 'integer',
-    },
-    'minItems': 2,
-    'maxItems': 2,
-}
-
-@extend_schema_field({
-    'type': 'array',
-    'items': _integer_range_schema,
-})
-class IntegerRangeListSerializer(serializers.ListSerializer):
-    # this special class is only here to work around
-    # https://github.com/tfranzel/drf-spectacular/issues/1353
-    pass
-
-@extend_schema_field(_integer_range_schema)
 class IntegerRangeSerializer(serializers.Serializer):
-    class Meta:
-        list_serializer_class = IntegerRangeListSerializer
-
     """
     Represents a range of integers.
     """