Adapt code to django CMS 3.6 and Django 1.11

Decide the home redirect per request instead of querying at import time,
replace the removed _get_placeholder helper, stop shadowing the
is_superuser field, and set the seeded home page as the CMS home.

dynamicweb/urls.py

@@ -41,9 +41,14 @@ urlpatterns += i18n_patterns(
 )
 
 # note the django CMS URLs included via i18n_patterns
-REDIRECT_TO_CMS = False
-if Page.objects.filter(site_id=Site.objects.get_current().id).count():
-    REDIRECT_TO_CMS = True
+
+
+def home_view(request, *args, **kwargs):
+    # decided per request so that importing the urlconf needs no database
+    if Page.objects.filter(node__site_id=Site.objects.get_current().id).exists():
+        return RedirectView.as_view(url='/cms')(request, *args, **kwargs)
+    return LandingView.as_view()(request, *args, **kwargs)
+
 
 urlpatterns += i18n_patterns(
     url(r'^admin/', include(admin.site.urls)),
@@ -64,8 +69,7 @@ urlpatterns += i18n_patterns(
     url(r'^cms/', include('cms.urls')),
     url(r'^blog/', include('djangocms_blog.urls', namespace='djangocms_blog')),
     url(r'^webhooks/', webhook_views.handle_webhook),
-    url(r'^$', RedirectView.as_view(url='/cms') if REDIRECT_TO_CMS
-        else LandingView.as_view()),
+    url(r'^$', home_view),
     url(r'^', include('ungleich_page.urls', namespace='ungleich_page')),
 )
 

membership/models.py

@@ -202,9 +202,6 @@ class CustomUser(AbstractBaseUser, PermissionsMixin):
     def get_random_password(cls):
         return get_random_string(24)
 
-    def is_superuser(self):
-        return False
-
     def get_full_name(self):
         # The user is identified by their email address
         return self.email

ungleich_page/cms_menus.py

@@ -2,7 +2,6 @@ from menus.base import NavigationNode
 from menus.menu_pool import menu_pool
 from django.utils.translation import ugettext_lazy as _
 from cms.menu_bases import CMSAttachMenu
-from cms.templatetags.cms_tags import _get_placeholder
 from cms.utils.plugins import get_plugins
 
 
@@ -15,9 +14,6 @@ class GlasfaserMenu(CMSAttachMenu):
         glasfaser_cms = 'ungleich_page/glasfaser_cms_page.html'
         if (request and request.current_page and
                 request.current_page.get_template() == glasfaser_cms):
-            template_context = {
-                "request": request,
-            }
             placeholder_name_list = [
                 'Top Section', 'Middle Section',  'Glasfaser Services',
                 'Glasfaser About', 'Contact Section'
@@ -27,10 +23,8 @@ class GlasfaserMenu(CMSAttachMenu):
                 'UngelichTextSection', 'Service', 'About'
             ]
             for placeholder_name in placeholder_name_list:
-                placeholder = _get_placeholder(
-                    request.current_page, request.current_page,
-                    template_context, placeholder_name
-                )
+                placeholder = request.current_page.get_placeholders().filter(
+                    slot=placeholder_name).first()
                 plugins = get_plugins(
                     request, placeholder, request.current_page.get_template()
                 )

utils/management/commands/seed_dummy_data.py

@@ -137,7 +137,7 @@ class Command(BaseCommand):
             page.publish(LANGUAGE)
 
     def seed_page(self, site):
-        if Page.objects.filter(reverse_id=REVERSE_ID, site=site).exists():
+        if Page.objects.filter(reverse_id=REVERSE_ID, node__site=site).exists():
             return
         template = SITE_TEMPLATES.get(site.domain, TEMPLATE)
         name, tagline = SITE_TEXTS.get(
@@ -146,6 +146,8 @@ class Command(BaseCommand):
             name, template, LANGUAGE, slug='home', meta_description=tagline,
             published=True, in_navigation=True, site=site,
             reverse_id=REVERSE_ID)
+        # django CMS >= 3.5 serves /cms/ from the page flagged as home
+        home.set_as_homepage()
         self.add_text(home, '<h1>{}</h1><p>{}</p>'.format(name, tagline))
         for slug, title, text in SUB_PAGES:
             child = create_page(