deepObject - v1 compat glue

fastapi/dependencies/utils.py

@@ -1,5 +1,5 @@
-import dataclasses
 import collections
+import dataclasses
 import inspect
 import re
 import sys
@@ -23,7 +23,7 @@ from typing import (
 )
 
 import anyio
-from fastapi import params
+from fastapi import params, temp_pydantic_v1_params
 from fastapi._compat import (
     PYDANTIC_V2,
     ModelField,
@@ -80,8 +80,6 @@ from starlette.responses import Response
 from starlette.websockets import WebSocket
 from typing_extensions import Annotated, Literal, get_args, get_origin
 
-from .. import temp_pydantic_v1_params
-
 multipart_not_installed_error = (
     'Form data requires "python-multipart" to be installed. \n'
     'You can install "python-multipart" with: \n\n'
@@ -762,12 +760,16 @@ class ParameterCodec:
 
     @staticmethod
     def decode(
-        field_info: params.Param,
+        field_info: Union[params.Param, temp_pydantic_v1_params.Param],
         received_params: Union[Mapping[str, Any], QueryParams, Headers],
         field: ModelField,
     ) -> Dict[str, Any]:
         fn: Callable[
-            [params.Param, Union[Mapping[str, Any], QueryParams, Headers], ModelField],
+            [
+                Union[params.Param, temp_pydantic_v1_params.Param],
+                Union[Mapping[str, Any], QueryParams, Headers],
+                ModelField,
+            ],
             Dict[str, Any],
         ]
         fn = getattr(ParameterCodec, f"decode_{field_info.style}")
@@ -775,7 +777,7 @@ class ParameterCodec:
 
     @staticmethod
     def decode_deepObject(
-        field_info: params.Param,
+        field_info: Union[params.Param, temp_pydantic_v1_params.Param],
         received_params: Union[Mapping[str, Any], QueryParams, Headers],
         field: ModelField,
     ) -> Dict[str, Any]:

fastapi/temp_pydantic_v1_params.py

@@ -59,6 +59,8 @@ class Param(FieldInfo):  # type: ignore[misc]
         deprecated: Union[deprecated, str, bool, None] = None,
         include_in_schema: bool = True,
         json_schema_extra: Union[Dict[str, Any], None] = None,
+        style: str = _Unset,
+        explode: bool = _Unset,
         **extra: Any,
     ):
         if example is not _Unset:
@@ -107,6 +109,8 @@ class Param(FieldInfo):  # type: ignore[misc]
         use_kwargs = {k: v for k, v in kwargs.items() if v is not _Unset}
 
         super().__init__(**use_kwargs)
+        self.style = style
+        self.explode = explode
 
     def __repr__(self) -> str:
         return f"{self.__class__.__name__}({self.default})"