# -*- coding: utf-8 -*-
#
# Copyright IRI (c) 2013
#
# contact@iri.centrepompidou.fr
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# This software is governed by the CeCILL-B license under French law and
# abiding by the rules of distribution of free software.  You can  use, 
# modify and/ or redistribute the software under the terms of the CeCILL-B
# license as circulated by CEA, CNRS and INRIA at the following URL
# "http://www.cecill.info". 
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from django.conf import settings
from django.contrib.auth import get_user_model
from django.contrib.auth.forms import (UserChangeForm as AuthUserChangeForm, 
    UserCreationForm as AuthUserCreationForm)
from django.core.exceptions import ValidationError
from django.forms.fields import ChoiceField
from django.utils.translation import ugettext as _


User = get_user_model()

class UserCreationform(AuthUserCreationForm):
    class Meta:
        model = User
        
    def clean_username(self):
        # Since User.username is unique, this check is redundant,
        # but it sets a nicer error message than the ORM. See #13147.
        username = self.cleaned_data["username"]
        try:
            User.objects.get(username=username)
        except User.DoesNotExist:
            return username
        raise ValidationError(self.error_messages['duplicate_username'])    
    

class UserChangeForm(AuthUserChangeForm):
    language = ChoiceField(label=_("language"), choices=[(k,_(v)) for k,v in settings.LANGUAGES], initial=settings.LANGUAGE_CODE[:2])
    class Meta:
        model = User