X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/2f9cb34a07fcd98effda2fa900e48c31813f14c8..5ae7908036c081c642aafd1c37dfaf9b94bf2445:/redakcja/forms.py

diff --git a/redakcja/forms.py b/redakcja/forms.py
index 22f3bab6..0d21bb3a 100644
--- a/redakcja/forms.py
+++ b/redakcja/forms.py
@@ -1,7 +1,24 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of MIL/PEER, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 from django import forms
+from django.utils.translation import ugettext as _
+from django.contrib.auth.models import User
+
 
 class RegistrationForm(forms.Form):
     first_name = forms.CharField()
     last_name = forms.CharField()
     email = forms.EmailField()
     password = forms.CharField(widget=forms.PasswordInput)
+
+    def clean_email(self):
+        max_length = User._meta.get_field('username').max_length
+        email = self.cleaned_data['email']
+        if User.objects.filter(username=email).exists():
+            raise forms.ValidationError(_('User with this email address already exists.'))
+        if len(email) > max_length:
+            raise forms.ValidationError(_('Username too long. Max length: %s') % max_length)
+        return email