Add missing decorator: @versioning_class()

rest_framework/decorators.py

@@ -70,6 +70,9 @@ def handler(self, *args, **kwargs):
         WrappedAPIView.permission_classes = getattr(func, 'permission_classes',
                                                     APIView.permission_classes)
 
+        WrappedAPIView.versioning_class = getattr(func, "versioning_class",
+                                                  APIView.versioning_class)
+
         WrappedAPIView.schema = getattr(func, 'schema',
                                         APIView.schema)
 
@@ -113,6 +116,13 @@ def decorator(func):
     return decorator
 
 
+def versioning_class(versioning_class):
+    def decorator(func):
+        func.versioning_class = versioning_class
+        return func
+    return decorator
+
+
 def schema(view_inspector):
     def decorator(func):
         func.schema = view_inspector

tests/test_decorators.py

@@ -7,7 +7,8 @@
 from rest_framework.authentication import BasicAuthentication
 from rest_framework.decorators import (
     action, api_view, authentication_classes, parser_classes,
-    permission_classes, renderer_classes, schema, throttle_classes
+    permission_classes, renderer_classes, schema, throttle_classes,
+    versioning_class
 )
 from rest_framework.parsers import JSONParser
 from rest_framework.permissions import IsAuthenticated
@@ -16,6 +17,7 @@
 from rest_framework.schemas import AutoSchema
 from rest_framework.test import APIRequestFactory
 from rest_framework.throttling import UserRateThrottle
+from rest_framework.versioning import QueryParameterVersioning
 from rest_framework.views import APIView
 
 
@@ -150,6 +152,16 @@ def view(request):
         response = view(request)
         assert response.status_code == status.HTTP_429_TOO_MANY_REQUESTS
 
+    def test_versioning_class(self):
+        @api_view(["GET"])
+        @versioning_class(QueryParameterVersioning)
+        def view(request):
+            return Response({"version": request.version})
+
+        request = self.factory.get("/?version=1.2.3")
+        response = view(request)
+        assert response.data == {"version": "1.2.3"}
+
     def test_schema(self):
         """
         Checks CustomSchema class is set on view