Hi,
when the strawberry.experimental.pydantic.type decorator tries to convert a Pydantic class to a strawberry type, an error occurs if one of the attributes of the Pydantic class is a nested subclass that has not yet been converted.
# pydantic.py
# my two pydantic classes
from pydantic import BaseModel, Field
class User(BaseModel):
id: int
username: str
name: Optional[str]
surname: Optional[str]
age: Optional[int]
sex: Optional[str]
posts: Optional[List["Post"]] = Field(default_factory=list)
class Post(BaseModel):
id: int
user: Optional["User"]
create_date: datetime = Field(default_factory=datetime.utcnow)
message: str# graphql.py
# my two strawberry type classes
from .pydantic import Post, User
@strawberry.experimental.pydantic.type(model=Post, fields=[
'id',
'user',
'create_date',
'message',
])
class PostType:
...
@strawberry.experimental.pydantic.type(model=User, fields=[
"id",
"username",
"name",
"surname",
"age",
"sex",
"posts",
])
class UserType:
...Error:
strawberry.experimental.pydantic.exceptions.UnregisteredTypeException: Cannot find a Strawberry Type for <class 'api_gateway.model.pydantic.User'> did you forget to register it?
Cause:
The problem is that the decorator doesn't wait until all the conversions are done and check again at the end.
It also doesn't matter in which order I write the statements, because each time the other class is not yet converted.
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