From 56a109fdfbc30a79e95e6f43106d0e73b97e9e72 Mon Sep 17 00:00:00 2001
From: Merlin Buczek <merlin.buczek@pm.me>
Date: Sun, 1 Sep 2019 16:07:32 +0200
Subject: [PATCH] Translation fallback to both, add notification

---
 config/settings/base.py |  2 ++
 mpicms/base/mixins.py   | 10 +++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/config/settings/base.py b/config/settings/base.py
index f328328..737c7ce 100644
--- a/config/settings/base.py
+++ b/config/settings/base.py
@@ -219,6 +219,8 @@
     ('de', _('German')),
 )
 
+MODELTRANSLATION_FALLBACK_LANGUAGES = ('en', 'de')
+
 LOCALE_PATHS = [
     os.path.join(ROOT_DIR, 'locale'),
 ]
diff --git a/mpicms/base/mixins.py b/mpicms/base/mixins.py
index 3f0f7bb..43b2e29 100644
--- a/mpicms/base/mixins.py
+++ b/mpicms/base/mixins.py
@@ -1,8 +1,9 @@
 from django.utils import translation
 from django.conf import settings
 from django.db import models
-from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, get_language_info
 from django.contrib.auth import get_user_model
+from django.contrib import messages
 
 from wagtail.admin.edit_handlers import StreamFieldPanel
 from wagtail.core.models import Page
@@ -64,5 +65,12 @@ def preview_text(self):
                 'markdown'
             ] else None
 
+    def serve(self, request):
+        lang = request.LANGUAGE_CODE
+        if not getattr(self, 'body_' + lang):
+            messages.info(request, _('Page not available in ') + get_language_info(lang)['name_local'])
+
+        return super().serve(request)
+
     class Meta:  # noqa
         abstract = True