我有带有 mongodb 的 python fastapi 应用程序。 下面我提供了创建文档的架构和代码。 我需要使用十进制，因为浮点数据类型中的浮点存在问题。但是，在 mongo 中使用 condecimal 会出现问题。
class FlowerTypeSchema(BaseModel):
id: UUID = None
merchant_id: Optional[UUID] = None
name: LangSchema
description: LangSchema
photo: Optional[str] = None
custom: Optional[bool] = False
rating: Optional[condecimal(ge=0)] = 0
tags: List[str]
consumables: List[ProductsSpentSchema]
created_at: datetime = None
updated_at: datetime = None
deleted_at: datetime = None
async def create_flower_type(flower_type: FlowerTypeSchema) -> FlowerTypeResponse:
flower_type.id = uuid4()
flower_type.photo = None
flower_type.created_at = datetime.now(pytz.timezone(TIMEZONE)).strftime("%Y-%m-%dT%H:%M:%S")
flower_type.updated_at = datetime.now(pytz.timezone(TIMEZONE)).strftime("%Y-%m-%dT%H:%M:%S")
await flower_types_collection.insert_one(flower_type.dict())
return FlowerTypeResponse(**flower_type.dict())
我想使用小数进行评级（以及稍后的价格），但我收到错误：
2024-06-01 14:46:32,147 - uvicorn.error - ERROR - Exception in ASGI application
Traceback (most recent call last):
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\uvicorn\protocols\http\h11_impl.py", line 408, in run_asgi
result = await app( # type: ignore[func-returns-value]
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\uvicorn\middleware\proxy_headers.py", line 84, in __call__
return await self.app(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\fastapi\applications.py", line 1106, in __call__
await super().__call__(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\applications.py", line 122, in __call__
await self.middleware_stack(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\middleware\errors.py", line 184, in __call__
raise exc
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\middleware\errors.py", line 162, in __call__
await self.app(scope, receive, _send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\middleware\cors.py", line 83, in __call__
await self.app(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\middleware\exceptions.py", line 79, in __call__
raise exc
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\middleware\exceptions.py", line 68, in __call__
await self.app(scope, receive, sender)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\fastapi\middleware\asyncexitstack.py", line 20, in __call__
raise e
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\fastapi\middleware\asyncexitstack.py", line 17, in __call__
await self.app(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\routing.py", line 718, in __call__
await route.handle(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\routing.py", line 276, in handle
await self.app(scope, receive, send)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\starlette\routing.py", line 66, in app
response = await func(request)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\fastapi\routing.py", line 274, in app
raw_response = await run_endpoint_function(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\fastapi\routing.py", line 191, in run_endpoint_function
return await dependant.call(**values)
File "c:\Users\Akmal\IT\OyGul\og-py-merchant-content-service\routes\flower_types.py", line 31, in create_flower_type_data
new_flower_type = await create_flower_type(flower_type=data)
File "c:\Users\Akmal\IT\OyGul\og-py-merchant-content-service\database\flower_types.py", line 17, in create_flower_type
await flower_types_collection.insert_one(flower_type.dict())
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\concurrent\futures\thread.py", line 58, in run
result = self.fn(*self.args, **self.kwargs)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\collection.py", line 669, in insert_one
self._insert_one(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\collection.py", line 609, in _insert_one
self.__database.client._retryable_write(acknowledged, _insert_command, session)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\mongo_client.py", line 1523, in _retryable_write
return self._retry_with_session(retryable, func, s, bulk)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\mongo_client.py", line 1421, in _retry_with_session
return self._retry_internal(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\_csot.py", line 107, in csot_wrapper
return func(self, *args, **kwargs)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\mongo_client.py", line 1462, in _retry_internal
).run()
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\mongo_client.py", line 2315, in run
return self._read() if self._is_read else self._write()
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\mongo_client.py", line 2422, in _write
return self._func(self._session, conn, self._retryable) # type: ignore
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\collection.py", line 597, in _insert_command
result = conn.command(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\helpers.py", line 322, in inner
return func(*args, **kwargs)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\pool.py", line 996, in command
self._raise_connection_failure(error)
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\pool.py", line 968, in command
return command(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\network.py", line 151, in command
request_id, msg, size, max_doc_size = message._op_msg(
File "C:\Users\Akmal\AppData\Local\Programs\Python\Python310\lib\site-packages\pymongo\message.py", line 762, in _op_msg
return _op_msg_uncompressed(flags, command, identifier, docs, opts)
bson.errors.InvalidDocument: cannot encode object: Decimal('4.5'), of type: <class 'decimal.Decimal'>