Model inheritance does not convert correctly

[VerzCar]

Use Case Scenario

I've two pydantic models. Each in his own module (file). One Model, the TUser depends on the TAddress.

address_model.py

class TAddress(BaseModel):
    id: Optional[int]
    address: Optional[constr(max_length=100, strip_whitespace=True)]
    city: Optional[constr(max_length=80, strip_whitespace=True)]
    postal_code: Optional[constr(max_length=15, strip_whitespace=True)]
    country: Optional[constr(max_length=3)]

user_model.py

class TUser(BaseModel):
    id: UUID = None
    email: Optional[EmailStr]

    address: Optional[TAddress]

    is_active: Optional[bool]
    is_email_verified: Optional[bool]
    created_at: Optional[datetime.datetime]

If I use the TUser model know for my PydanticObjectType

class UserType(PydanticObjectType):
    class Meta:
        model = TUser

I get the following error message:

graphene_pydantic.converters.ConversionError: Don't know how to convert the Pydantic field ModelField(name='address', type=Optional[TAddress], required=False, default=None) (<class 'app.address.serializers.TAddress'>)

It seems like that there is a problem when using pydantic models from different modules that depends on each other. What is the solution for this use case?

Any idea?

[mskoric]

You have to declare also TAddress as a PydanticObjectType class.

models are located in directory schemas

schemas/taddress.py
schemas/tuser.py

grapql_models are located in graphql_models

graphql_models/models.py

from app import schemas

class TAddress(PydanticObjectType):
           class Meta:
                   model = schemas. TAddress


class TUser(PydanticObjectType):
        class Meta:
            model = schemas.TUser`