fix fetmeeting event check and remove duplicated post at start page

fet2020/fet2020/views.py

@@ -14,22 +14,23 @@ def index(request):
 
     t = set(t for t in get_tags(posts))
 
-    tmp = Post.articles.get_pinned_article()
-    if tmp:
-        # if a pinned post exists
-        featured_post = tmp[0]
-    else:
+    # set the pinned post
+    featured_post = Post.articles.get_pinned_article()
+    if not featured_post:
         # if a pinned post does not exist, take the last published one.
         if len(posts) >= 1:
             featured_post = posts.popleft()
         else:
             featured_post = 0
+    else:
+        # remove the pinned post
+        posts.remove(featured_post)
 
     context = {
         'posts': posts,
         'events': Event.all_events.get_five_events(),
         'featured_post': featured_post,
-        'featured_meeting': deque(FetMeeting.objects.get_meetings()),
+        'featured_meeting': FetMeeting.objects.get_meetings(),
         'tags_list': ", ".join(t)
     }
 

fet2020/posts/managers.py

@@ -26,7 +26,7 @@ class ArticleManager(models.Manager):
         return self.get_queryset().filter(is_hidden=False)
 
     def get_pinned_article(self):
-        return self.get_visible_articles().filter(is_pinned=True)
+        return self.get_visible_articles().filter(is_pinned=True).first()
 
 
 class NewsManager(models.Manager):

fet2020/posts/models.py

@@ -240,7 +240,7 @@ class FetMeeting(Event):
     def clean(self):
         if self.event_start is None:
             raise ValidationError(_('Das Datum des Events fehlt.'))
-        elif self.event_end < self.event_start:
+        elif (self.event_end) and (self.event_end < self.event_start):
             raise ValidationError(_('Das Ende des Events liegt vor dem Beginn.'))
 
         slug = slugify(self.event_start.date()) + "-" + slugify("Fachschaftssitzung")