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from dataclasses import dataclass
import pydantic
import apischema
class UserModel(pydantic.BaseModel):
username: str
password1: str
password2: str
@pydantic.root_validator
def check_passwords_match(cls, values):
# This is a classmethod (it needs a plugin to not raise a warning in your IDE)
# What is the type of of values? of values['password1']?
# If you rename password1 field, validator will hardly be updated
# You also have to test yourself that values are provided
pw1, pw2 = values.get("password1"), values.get("password2")
if pw1 is not None and pw2 is not None and pw1 != pw2:
raise ValueError("passwords do not match")
return values
@dataclass
class LoginForm:
username: str
password1: str
password2: str
@apischema.validator
def check_password_match(self):
# Typed checked, simpler, and not executed if password1 or password2
# are missing/invalid
if self.password1 != self.password2:
raise ValueError("passwords do not match")
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