# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
from django.contrib.auth.models import User
+from django.core.exceptions import ValidationError
from django.db import models
from django.db.models import permalink
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import ugettext, ugettext_lazy as _
from newtagging.models import TagBase
def get_absolute_url(self):
return ('catalogue.views.tagged_object_list', [self.url_chunk])
+ def clean(self):
+ if self.category == 'book' and (self.gazeta_link or self.wiki_link):
+ raise ValidationError(ugettext(
+ u"Book tags can't have attached links. Set them directly on the book instead of it's tag."))
+
@classmethod
@permalink
def create_url(cls, category, slug):