class C2CUserForm(forms.ModelForm):

    password = forms.CharField(label=_('password'), widget=forms.PasswordInput)
    password2 = forms.CharField(label=_('password confirmation'), widget=forms.PasswordInput)

    class Meta:
        model = User
        fields = ['first_name', 'last_name', 'email', 'password', 'password2']

    def clean_email(self):
        email = self.cleaned_data['email']
        try:
            user = User.objects.get(email=email)
        except User.DoesNotExist:
            return email
        raise forms.ValidationError(u'An account with %s as email already exists' % email)

    def clean(self):
        password = self.cleaned_data['password']
        password2 = self.cleaned_data['password2']

        if password != password2:
            raise forms.ValidationError(_('Both passwords mismatch'))

        return self.cleaned_data

    def save(self, *args, **kwargs):

        # username = email
        self.instance.username = self.instance.email

        # set password
        obj = super(C2CUserForm, self).save(*args, **kwargs)
        obj.set_password(self.cleaned_data['password'])
        obj.is_active= True
        obj.save()

        obj.groups.add(Group.objects.get(name=C2CUserProfile.ORGANISM))

        return obj