Fix the return datetime data encoder (#505)

Author: wu-clan

backend/common/response/response_schema.py

@@ -1,13 +1,11 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-from datetime import datetime
 from typing import Any, Generic, TypeVar
 
 from fastapi import Response
-from pydantic import BaseModel, ConfigDict
+from pydantic import BaseModel
 
 from backend.common.response.response_code import CustomResponse, CustomResponseCode
-from backend.core.conf import settings
 from backend.utils.serializers import MsgSpecJSONResponse
 
 SchemaT = TypeVar('SchemaT')
@@ -35,9 +33,6 @@ def test() -> ResponseModel:
             return ResponseModel(code=res.code, msg=res.msg, data={'test': 'test'})
     """
 
-    # TODO: json_encoders 配置失效: https://github.com/tiangolo/fastapi/discussions/10252
-    model_config = ConfigDict(json_encoders={datetime: lambda x: x.strftime(settings.DATETIME_FORMAT)})
-
     code: int = CustomResponseCode.HTTP_200.code
     msg: str = CustomResponseCode.HTTP_200.msg
     data: Any | None = None

backend/common/schema.py

@@ -1,9 +1,12 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+from datetime import datetime
 
 from pydantic import BaseModel, ConfigDict, EmailStr, validate_email
 from pydantic_extra_types.phone_numbers import PhoneNumber
 
+from backend.core.conf import settings
+
 # 自定义验证错误信息不包含验证预期内容（也就是输入内容），受支持的预期内容字段参考以下链接
 # https://github.com/pydantic/pydantic-core/blob/a5cb7382643415b716b1a7a5392914e50f726528/tests/test_errors.py#L266
 # 替换预期内容字段方式，参考以下链接
@@ -150,4 +153,7 @@ def _validate(cls, __input_value: str) -> str:
 
 
 class SchemaBase(BaseModel):
-    model_config = ConfigDict(use_enum_values=True)
+    model_config = ConfigDict(
+        use_enum_values=True,
+        json_encoders={datetime: lambda x: x.strftime(settings.DATETIME_FORMAT)},
+    )