fastapi初始化乌龟orm的问题 [英] issues with initializing tortoise orm with fastapi
问题描述
我遇到乌龟orm和fastapi
i am having issue with tortoise orm and fastapi
我有来自 app.py 的以下代码；我略过了几行以使内容简洁化
i have the following code from app.py; i have skipped some lines to make this concise
app.py
from fastapi import FastAPI, HTTPException
from app.models import User_Pydantic, UserIn_Pydantic, Users
from app.utils import cryptoUtil
from app.auth import auth as auth_router
from tortoise.contrib.fastapi import HTTPNotFoundError, register_tortoise
app = FastAPI()
@app.post("/users", response_model=User_Pydantic)
async def create_user(user: UserIn_Pydantic):
user.password = cryptoUtil.hash_password(user.password)
user_obj = Users(email=user.email, password=user.password, fullname=user.fullname, status=user.status)
await user_obj.save()
return await User_Pydantic.from_tortoise_orm(user_obj)
register_tortoise(
app,
db_url=config.DATABASE_URL,
modules={"models": ["app.models"]},
generate_schemas=True,
add_exception_handlers=True,
)
app.include_router(auth_router.router, tags=["Auth"])
if __name__ == '__main__':
app.run()
这很好并且可以创建用户
this works fine and able to create users
但是现在我正尝试从另一个文件中执行同样的操作
but now i am trying to do the same from another file
auth.py
from fastapi import APIRouter, Depends, HTTPException
from app.auth import crud
from app.utils import cryptoUtil
from app.models import User_Pydantic, UserIn_Pydantic, Users
router = APIRouter()
@router.post("/auth/register", response_model=User_Pydantic)
async def register(user: UserIn_Pydantic):
result = await crud.find_exist_user(user.email)
if result:
raise HTTPException(status_code=404, detail="user already exists!")
user.password = cryptoUtil.hash_password(user.password)
user_obj = Users(email=user.email, password=user.password, fullname=user.fullname, status=user.status)
await user_obj.save()
return await User_Pydantic.from_tortoise_orm(user_obj)
但是这不起作用，我在404错误响应中得到了
but this does not work and i get this in 404 error response
{
"detail": "Object does not exist"
}
我认为问题在于
return await User_Pydantic.from_tortoise_orm(user_obj)
无法在 auth.py 文件中工作，因为出于某些原因，我无法在初始化了乌龟的 app.py 文件之外运行该文件
is not able to work in auth.py file because for some reason i cant run it outside of app.py file which is where tortoise is initialized
我该怎么做才能解决此问题?问题的一部分是如何从存在 register_tortoise 的 app.py 外部调用乌龟初始化
what do i do to fix this?
part of the issue am having is how to be able to call tortoise initialization from outside app.py where register_tortoise exists
更新:
文件夹结构
├── app
│ ├── app.py
│ ├── models.py
│ ├── config.py
│ │
│ ├── auth
│ │ ├── auth.py
│ │ ├── crud.py
│ │
│ └── utils
│ ├── cryptoUtil.py
│
推荐答案
正如我在评论中所说，您需要插入
As I said in the comments, you need to insert
Tortoise.init_models(models_list, "models")
在下一行之前
register_tortoise(
app,
db_url=config.DATABASE_URL,
modules={"models": ["app.models"]},
generate_schemas=True,
add_exception_handlers=True,
)
当然，您必须更改模型"文件夹和名称，具体取决于您的配置.
Of course you'll have to change the "models" folder and name according to your configuration.
一开始我也是一个问题，但是下面的github问题解决了这个问题
At the beginning it was also a problem for me as well, but the following github issue solved the problem
https://github.com/tortoise/tortoise-orm/issues/444
文档也提供了解释
https://tortoise-orm.readthedocs.io/en/latest/search.html?q = early + init
更新
Tortoise.init_models(models_list, "models")
models_list是要考虑的模型路径的列表(字符串).在您的情况下，它将是 app.models .
models_list is the list (strings) of paths of the models that are to be considered. In your case, it'll be app.models.
这个想法是在连接数据库之前初始化并开始准备模型.这是使关系在式模型中可用的必需步骤.
The idea is to initialize and start preparing the models, before connecting to the database. This is a step required in order to make relations available in the pydantic models.
此处是API文档
这篇关于fastapi初始化乌龟orm的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
