Migrate from CMS_REDIRECTS=True to django.contrib.redirects

gistfile1.py

from cms.models import Title
from django.contrib.redirects.models import Redirect

titles_with_redirect = Title.objects.exclude(redirect__isnull=True).exclude(redirect=u'')

for title in titles_with_redirect.select_related('page__site'):
    Redirect.objects.create(
        site=title.page.site,
        old_path=u'/%s/' % title.path,
        new_path=title.redirect,
    )