From 8472f4addf616aa97796ea417b6ecf249db85450 Mon Sep 17 00:00:00 2001
From: JONEMI21 <michael.jones2@kingfisher.com>
Date: Mon, 10 Nov 2025 11:14:33 +0000
Subject: [PATCH] raise error in pydantic v1

---
 fastapi/_compat/v1.py | 4 ++++
 fastapi/params.py     | 1 -
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fastapi/_compat/v1.py b/fastapi/_compat/v1.py
index 1d5c83fa7..7f10293fb 100644
--- a/fastapi/_compat/v1.py
+++ b/fastapi/_compat/v1.py
@@ -348,3 +348,7 @@ def create_body_model(
 
 def get_model_fields(model: Type[BaseModel]) -> List[ModelField]:
     return list(model.__fields__.values())  # type: ignore[attr-defined]
+
+def omit_by_default(field_info: FieldInfo) -> FieldInfo:
+    """add a wrap validator to omit invalid values by default."""
+    raise NotImplementedError("This function is a placeholder in Pydantic v1.")
diff --git a/fastapi/params.py b/fastapi/params.py
index 3d9319030..6a58d5808 100644
--- a/fastapi/params.py
+++ b/fastapi/params.py
@@ -305,7 +305,6 @@ class Query(Param):  # type: ignore[misc]
             json_schema_extra=json_schema_extra,
             **extra,
         )
-        self.annotation = self.annotation
 
 
 class Header(Param):  # type: ignore[misc]