persuing 'on_error="omit"'

fastapi/_compat/main.py

@@ -28,7 +28,6 @@ if PYDANTIC_V2:
     from .v2 import Validator as Validator
     from .v2 import evaluate_forwardref as evaluate_forwardref
     from .v2 import get_missing_field_error as get_missing_field_error
-    from .v2 import ignore_invalid as ignore_invalid
     from .v2 import (
         with_info_plain_validator_function as with_info_plain_validator_function,
     )
@@ -45,7 +44,6 @@ else:
     from .v1 import Validator as Validator
     from .v1 import evaluate_forwardref as evaluate_forwardref
     from .v1 import get_missing_field_error as get_missing_field_error
-    from .v1 import ignore_invalid as ignore_invalid
     from .v1 import (  # type: ignore[assignment]
         with_info_plain_validator_function as with_info_plain_validator_function,
     )

fastapi/_compat/shared.py

@@ -252,30 +252,3 @@ def annotation_is_pydantic_v1(annotation: Any) -> bool:
             if annotation_is_pydantic_v1(sub_annotation):
                 return True
     return False
-
-
-def remove_invalid(v: Any, handler: Callable[[Any], Any]) -> Any:
-    try:
-        return handler(v)
-    except ValidationError as exc:
-        if not isinstance(v, dict):
-            raise exc
-        # remove invalid values from invalid keys and revalidate
-        errors = may_v1._regenerate_error_with_loc(errors=[exc.errors()], loc_prefix=())
-        for err in errors:
-            loc = err.get("loc", ())
-            if len(loc) == 1:
-                v.pop(loc[0], None)
-            elif len(loc) == 2 and isinstance(v.get(loc[0]), list):
-                try:
-                    v[loc[0]][loc[1]] = None
-                except (ValueError, IndexError):
-                    pass
-        # remove the None values from lists
-        for key in list(v.keys()):
-            if isinstance(v[key], list):
-                v[key] = [item for item in v[key] if item is not None]
-            # remove empty lists
-            if v[key] == []:
-                v.pop(key)
-        return handler(v)

fastapi/_compat/v1.py

@@ -349,6 +349,3 @@ def create_body_model(
 def get_model_fields(model: Type[BaseModel]) -> List[ModelField]:
     return list(model.__fields__.values())  # type: ignore[attr-defined]
 
-
-def ignore_invalid(field_info: FieldInfo) -> FieldInfo:
-    return field_info

fastapi/_compat/v2.py

@@ -488,10 +488,3 @@ def get_flat_models_from_fields(
 def get_long_model_name(model: TypeModelOrEnum) -> str:
     return f"{model.__module__}__{model.__qualname__}".replace(".", "__")
 
-
-def ignore_invalid(field_info: FieldInfo) -> FieldInfo:
-    new_field_info = copy(field_info)
-    new_field_info.metadata = getattr(field_info, "metadata", []) + [
-        WrapValidator(shared.remove_invalid)
-    ]
-    return new_field_info

fastapi/dependencies/utils.py

@@ -34,7 +34,6 @@ from fastapi._compat import (
     get_annotation_from_field_info,
     get_cached_model_fields,
     get_missing_field_error,
-    ignore_invalid,
     is_bytes_field,
     is_bytes_sequence_field,
     is_scalar_field,
@@ -64,7 +63,7 @@ from fastapi.security.oauth2 import OAuth2, SecurityScopes
 from fastapi.security.open_id_connect_url import OpenIdConnect
 from fastapi.types import DependencyCacheKey
 from fastapi.utils import create_model_field, get_path_param_names
-from pydantic import BaseModel
+from pydantic import BaseModel, TypeAdapter
 from pydantic.fields import FieldInfo
 from starlette.background import BackgroundTasks as StarletteBackgroundTasks
 from starlette.concurrency import run_in_threadpool
@@ -527,15 +526,7 @@ def analyze_param(
             if is_scalar_sequence_field(field) or is_scalar_sequence_mapping_field(
                 field
             ):
-                field = create_model_field(
+                field._type_adapter.core_schema["on_error"] = "omit"
-                    name=param_name,
-                    type_=use_annotation_from_field_info,
-                    default=field_info.default,
-                    alias=alias,
-                    required=field_info.default
-                    in (RequiredParam, may_v1.RequiredParam, Undefined),
-                    field_info=ignore_invalid(field_info),
-                )
 
     return ParamDetails(type_annotation=type_annotation, depends=depends, field=field)