Write a django Alluth adapter that checks if a value i unique - django

Question

Im trying to check if a value for pid is uniqe but i cant manage to make alluth adapter to find the pid field. Any tips? Nothin happend, but if i change pid value to email the code works on the email field. I cant get the pid field to work whit this function. Maybe im referencing it in a wrong way and the filed does not belong to the default account adaptet-
class PidMaxAdapter(DefaultAccountAdapter):
def clean_pid(self, pid, user):
user.profile.pid = pid
if len(pid) > 9:
raise ValidationError('Please enter a username value\
less than the current one')
# For other default validations.
return DefaultAccountAdapter.clean_pid(self, pid)

Answer 1

Create a custom signup form and do your validation in there.
Here's an example where I have a setting to disable recaptcha
from django import forms
from django.conf import settings
from allauth.account.forms import SignupForm as BaseSignupForm
from captcha.fields import ReCaptchaField
from .widgets import RefreshingCaptchaV3
class SignupForm(BaseSignupForm):
""" Our signup form to integrate captcha """
captcha = ReCaptchaField(
label='',
widget=RefreshingCaptchaV3()
)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
if settings.DISABLE_RECAPTCHA:
del self.fields['captcha']
You can get allauth to use your custom forms with the following setting;
ACCOUNT_FORMS = {
'change_password': 'apps.accounts.forms.ChangePasswordForm',
'reset_password': 'apps.accounts.forms.ResetPasswordForm',
'signup': 'apps.accounts.forms.SignupForm',
}
If you pass a pid to the form, you can then make it an attribute of the form instance in the __init__ and assign it to the profile during the save. Or have pid as a field, pass it a value in the initial data for the form and have it as a hidden input (forms.HiddenInput() is the widget).
Then in the clean_pid() you could validate that the value is unique against the other rows in the table. Depending on what you're doing with this data, it'd make most sense to use something like a UUID so that you don't have to worry so much about clashing values.