feat: add support for definition in query param

tests/test_oas/test_view.py

@@ -20,6 +20,11 @@ class Color(str, Enum):
     PINK = "pink"
 
 
+class Lang(str, Enum):
+    EN = 'en'
+    FR = 'fr'
+
+
 class Toy(BaseModel):
     name: str
     color: Color
@@ -33,7 +38,7 @@ class Pet(BaseModel):
 
 class PetCollectionView(PydanticView):
     async def get(
-        self, format: str, name: Optional[str] = None, *, promo: Optional[UUID] = None
+            self, format: str, lang: Lang = Lang.EN, name: Optional[str] = None, *, promo: Optional[UUID] = None
     ) -> r200[List[Pet]]:
         """
         Get a list of pets
@@ -51,11 +56,11 @@ class PetCollectionView(PydanticView):
 
 class PetItemView(PydanticView):
     async def get(
-        self,
-        id: int,
-        /,
-        size: Union[int, Literal["x", "l", "s"]],
-        day: Union[int, Literal["now"]] = "now",
+            self,
+            id: int,
+            /,
+            size: Union[int, Literal["x", "l", "s"]],
+            day: Union[int, Literal["now"]] = "now",
     ) -> Union[r200[Pet], r404]:
         return web.json_response()
 
@@ -116,6 +121,12 @@ async def test_generated_oas_should_have_components_schemas(generated_oas):
             "title": "Color",
             "type": "string",
         },
+        'Lang': {
+            'description': 'An enumeration.',
+            'enum': ['en', 'fr'],
+            'title': 'Lang',
+            'type': 'string'
+        },
         "Toy": {
             "properties": {
                 "color": {"$ref": "#/components/schemas/Color"},
@@ -143,6 +154,16 @@ async def test_pets_route_should_have_get_method(generated_oas):
                 "required": True,
                 "schema": {"title": "format", "type": "string"},
             },
+            {
+                'in': 'query',
+                'name': 'lang',
+                'required': False,
+                'schema': {
+                    'allOf': [{'$ref': '#/components/schemas/Lang'}],
+                    'default': 'en',
+                    'title': 'lang'
+                }
+            },
             {
                 "in": "query",
                 "name": "name",