posts sorted by public date or event start depend on post type

fet2020/fet2020/views.py

@@ -6,7 +6,7 @@ from posts.models import Post, FetMeeting, Event
 
 
 def index(request):
-    posts = deque(Post.articles.get_visible_articles())
+    posts = deque(Post.articles.get_date_sorted_list())
     posts_for_tags = deque(Post.objects.get_last_months_posts())
 
     def get_tags(lst):

fet2020/posts/managers.py

@@ -12,6 +12,19 @@ class PostManager(models.Manager):
     def get_visible_articles(self):
         return self.get_queryset().filter(is_hidden=False)
 
+    def get_date_sorted_list(self):
+        post_list = []
+        for post in self.get_visible_articles():
+            if post.post_type != "N":
+                post_list.append((post, post.event_start.date()))
+            else:
+                post_list.append((post, post.public_date))
+
+        result = sorted(post_list, key=lambda x: x[1], reverse=True)
+        posts = [x[0] for x in result]
+
+        return posts
+
     def get_last_months_posts(self):
         date_today = timezone.now().date()
         return self.get_visible_articles().filter(
@@ -43,6 +56,19 @@ class ArticleManager(models.Manager):
     def get_visible_articles(self):
         return self.get_queryset().filter(is_hidden=False)
 
+    def get_date_sorted_list(self):
+        post_list = []
+        for post in self.get_visible_articles():
+            if post.post_type != "N":
+                post_list.append((post, post.event_start.date()))
+            else:
+                post_list.append((post, post.public_date))
+
+        result = sorted(post_list, key=lambda x: x[1], reverse=True)
+        posts = [x[0] for x in result]
+
+        return posts
+
     def get_pinned_article(self):
         return self.get_visible_articles().filter(is_pinned=True).first()
 

fet2020/posts/views.py

@@ -24,7 +24,7 @@ logger = logging.getLogger(__name__)
 
 def index(request):
     "Index von aktuellen Posts"
-    posts = deque(Post.objects.get_visible_articles().order_by("-public_date"))
+    posts = deque(Post.objects.get_date_sorted_list())
 
     taglist = map(lambda post: post.tags, posts)