[#3607] Fix OpenAPI schema

Add the new validator to the list. This list is now sorted to ensure
consistency.

src/openapi.yaml

@@ -5269,6 +5269,7 @@ paths:
         schema:
           type: string
           enum:
+          - brk-Zaakgerechtigde
           - kvk-branchNumber
           - kvk-kvkNumber
           - kvk-rsin
@@ -9312,8 +9313,13 @@ components:
       properties:
         value:
           type: string
-          description: Value to be validated
+          description: Value to be validated.
+        submissionUuid:
+          type: string
+          format: uuid
+          description: UUID of the submission.
       required:
+      - submissionUuid
       - value
     ValidationPlugin:
       type: object

src/openforms/api/drf_spectacular/plumbing.py

@@ -1,9 +1,13 @@
+from typing import Any
+
 from drf_spectacular.plumbing import (
     ResolvedComponent,
     build_basic_type,
     build_parameter_type,
 )
-from drf_spectacular.utils import OpenApiParameter
+from drf_spectacular.utils import OpenApiParameter, inline_serializer
+from rest_framework.fields import Field
+from rest_framework.serializers import Serializer
 
 
 def build_response_header_parameter(
@@ -53,3 +57,18 @@ def build_response_header_component(
         object=name,
     )
     return component
+
+
+def extend_inline_serializer(
+    serializer: type[Serializer],
+    fields: dict[str, Field],
+    name: str | None = None,
+    **kwargs: Any,
+):
+    """Return an inline serializer, with fields extended from the provided serializer.
+
+    If one of the provided extra fields already exists on the base serializer, it will be overridden.
+    """
+    return inline_serializer(
+        name or serializer.__name__, serializer().get_fields() | fields, **kwargs
+    )

src/openforms/validations/api/views.py

@@ -4,12 +4,13 @@
 
 from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import OpenApiParameter, extend_schema, extend_schema_view
-from rest_framework import authentication, permissions
+from rest_framework import authentication, permissions, serializers
 from rest_framework.exceptions import PermissionDenied
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from openforms.api.authentication import AnonCSRFSessionAuthentication
+from openforms.api.drf_spectacular.plumbing import extend_inline_serializer
 from openforms.api.views import ListMixin
 from openforms.submissions.constants import SUBMISSIONS_SESSION_KEY
 from openforms.submissions.models import Submission
@@ -61,14 +62,21 @@ class ValidationView(APIView):
     @extend_schema(
         operation_id="validation_run",
         summary=_("Validate value using validation plugin"),
-        request=ValidationInputSerializer,
+        request=extend_inline_serializer(
+            ValidationInputSerializer,
+            {
+                "value": serializers.CharField(
+                    label=_("value"), help_text=_("Value to be validated.")
+                )
+            },
+        ),
         responses=ValidationResultSerializer,
         parameters=[
             OpenApiParameter(
                 "validator",
                 OpenApiTypes.STR,
                 OpenApiParameter.PATH,
-                enum=[validator.identifier for validator in register],
+                enum=sorted([validator.identifier for validator in register]),
                 description=_(
                     "ID of the validation plugin, see the [`validation_plugin_list`]"
                     "(./#operation/validation_plugin_list) operation"