Few question about using pydantic factory

[idan-rahamim-lendbuzz]

Hi, I have a few questions and would really appreciate any help.

1. when i create a factory from the pydantic model above I'm getting an error polyfactory.exceptions.ParameterException: received constraints for unsupported type <class 'pydantic.networks.EmailStr'>
   What should i do?

2. If i wanted to use Faker to generate data would this be a correct use?
   

Thanks !

[suspiciousRaccoon]

hi! /ᐠ. ̫ .ᐟ\ฅ
I tried this code and email auto generation seemed to work:

class Email(BaseModel):
    email: EmailStr


class EmailFactory(ModelFactory[Email]): ...


def test_factory():
    email = EmailFactory.build()
    assert isinstance(email, Email)
    assert isinstance(email.email, str)

But it fails if I add the constraint to the field:

class Email(BaseModel):
    email: EmailStr = Field(min_length=5, max_length=50)

It seems get_constrained_field_value doesn't have logic for EmailStr

I'd probably recommend getting rid of the Field validator though. Pydantic already takes care of validating the length via email-validator

As for faker, the factory already comes with it, so you could do something like this:

class UserSchemaFactory(ModelFactory[UserSchema]):
    username = Use(lambda: UserSchemaFactory.__faker__.user_name())
    email = Use(lambda: UserSchemaFactory.__faker__.email())
    first_name = Use(lambda: UserSchemaFactory.__faker__.first_name())
    last_name = Use(lambda: UserSchemaFactory.__faker__.last_name())

I'm not sure if it matters much, it seemed to work both ways.