ormar example raises AttributeError when queried

[johnthagen]

I tried running the ormar example as is and it did not work:

# OS: macOS

(venv) $ python --version
Python 3.9.1

(venv) $ pip freeze
aiosqlite==0.17.0
click==7.1.2
databases==0.4.1
Faker==8.1.0
fastapi==0.63.0
fastapi-pagination==0.7.0
h11==0.12.0
ormar==0.10.4
pydantic==1.8
python-dateutil==2.8.1
six==1.15.0
SQLAlchemy==1.3.23
starlette==0.13.6
text-unidecode==1.3
typing-extensions==3.7.4.3
uvicorn==0.13.4

(venv) $ uvicorn pagination_ormar:app --reload
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [60370] using statreload
INFO:     Started server process [60372]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     127.0.0.1:58059 - "GET /docs HTTP/1.1" 200 OK
INFO:     127.0.0.1:58059 - "GET /openapi.json HTTP/1.1" 200 OK
INFO:     127.0.0.1:58059 - "GET /docs HTTP/1.1" 200 OK
INFO:     127.0.0.1:58059 - "GET /openapi.json HTTP/1.1" 200 OK
INFO:     127.0.0.1:58059 - "GET /users/limit-offset?limit=50&offset=0 HTTP/1.1" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "./venv/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "./venv/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
    return await self.app(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/fastapi/applications.py", line 199, in __call__
    await super().__call__(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/applications.py", line 111, in __call__
    await self.middleware_stack(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "./venv/lib/python3.9/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "./venv/lib/python3.9/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "./venv/lib/python3.9/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 566, in __call__
    await route.handle(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 227, in handle
    await self.app(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 41, in app
    response = await func(request)
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 209, in app
    response_data = await serialize_response(
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 109, in serialize_response
    response_content = _prepare_response_content(
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 66, in _prepare_response_content
    return res.dict(
  File "pydantic/main.py", line 495, in pydantic.main.BaseModel.dict
  File "pydantic/main.py", line 859, in _iter
  File "pydantic/main.py", line 800, in pydantic.main.BaseModel._get_value
  File "pydantic/main.py", line 785, in genexpr
  File "pydantic/main.py", line 749, in pydantic.main.BaseModel._get_value
  File "./venv/lib/python3.9/site-packages/ormar/models/newbasemodel.py", line 700, in dict
    pk_only = object.__getattribute__(self, "__pk_only__")
AttributeError: __pk_only__
INFO:     127.0.0.1:58066 - "GET /users/default?page=0&size=50 HTTP/1.1" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "./venv/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "./venv/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
    return await self.app(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/fastapi/applications.py", line 199, in __call__
    await super().__call__(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/applications.py", line 111, in __call__
    await self.middleware_stack(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "./venv/lib/python3.9/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "./venv/lib/python3.9/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "./venv/lib/python3.9/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 566, in __call__
    await route.handle(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 227, in handle
    await self.app(scope, receive, send)
  File "./venv/lib/python3.9/site-packages/starlette/routing.py", line 41, in app
    response = await func(request)
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 209, in app
    response_data = await serialize_response(
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 109, in serialize_response
    response_content = _prepare_response_content(
  File "./venv/lib/python3.9/site-packages/fastapi/routing.py", line 66, in _prepare_response_content
    return res.dict(
  File "pydantic/main.py", line 495, in pydantic.main.BaseModel.dict
  File "pydantic/main.py", line 859, in _iter
  File "pydantic/main.py", line 800, in pydantic.main.BaseModel._get_value
  File "pydantic/main.py", line 785, in genexpr
  File "pydantic/main.py", line 749, in pydantic.main.BaseModel._get_value
  File "./venv/lib/python3.9/site-packages/ormar/models/newbasemodel.py", line 700, in dict
    pk_only = object.__getattribute__(self, "__pk_only__")
AttributeError: __pk_only__

CC @collerek

[collerek]

Fixed in 0.10.5, @uriyyo can you please bum required ormar version >=0.10.5? And after that (and maybe additional check) you can close the issue ;)

Thanks!

[uriyyo]

Hi @collerek,

Thanks for a quick fix. Issue has been resolved 🙂