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from django.contrib.auth import forms, get_user_model
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
User = get_user_model()
class UserChangeForm(forms.UserChangeForm):
class Meta(forms.UserChangeForm.Meta):
model = User
class UserCreationForm(forms.UserCreationForm):
error_message = forms.UserCreationForm.error_messages.update(
{"duplicate_username": _("This username has already been taken.")}
)
class Meta(forms.UserCreationForm.Meta):
model = User
def clean_username(self):
username = self.cleaned_data["username"]
try:
User.objects.get(username=username)
except User.DoesNotExist:
return username
raise ValidationError(self.error_messages["duplicate_username"])
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