bug fixes

- fix can't append str to None
- fix ManyRelatedManager error in blog post announcements
- fix timedelta doesn't have "month"

blogs/management/commands/check_feeds.py

@@ -209,6 +209,7 @@ class Command(BaseCommand):
                                 )
                                 else None
                             )
+                            if description:
                                 description += "..."
 
                             instance = models.Edition.objects.create(

blogs/management/commands/queue_announcements.py

@@ -33,7 +33,7 @@ class Command(BaseCommand):
             if (
                 conf.announcements < 1
                 or (delta < timedelta(days=7))
-                or (delta < timedelta(months=3) and conf.announcements < 2)
+                or (delta < timedelta(days=90) and conf.announcements < 2)
             ):
                 conf.announce()
 

blogs/models/blog.py

@@ -122,7 +122,7 @@ class Article(BlogData):
                 label = warning.is_in(text)
                 if label:
                     summmary.append(label)
-            for tag in self.tags:  # pylint: disable=E1133
+            for tag in self.tags.all():  # pylint: disable=E1133
                 label = warning.is_in(tag.name)
                 if label:
                     summmary.append(label)