Fix menu behavior

README.rst

@@ -235,11 +235,14 @@ Menu
 
 ``djangocms_blog`` provides support for django CMS menu framework.
 
-By default all the categories and posts are added to the menu, in a hierarcical structure.
+By default all the categories and posts are added to the menu, in a hierarchical structure.
 
 Is it possibile to configure per Apphook, whether the menu includes post and categories
 (the default), only categorie, only posts or no item.
 
+If "post and categories" or "only categories" are set, all the posts not associated with a
+category are not added to the menu.
+
 Templates
 +++++++++
 

djangocms_blog/menu.py

@@ -52,13 +52,16 @@ class BlogCategoryMenu(CMSAttachMenu):
                 posts = posts.namespace(self.instance.application_namespace)
             posts = posts.active_translations(language).distinct()
             for post in posts:
+                post_id = None
                 if categories_menu:
                     category = post.categories.first()
+                    if category:
                         parent = '%s-%s' % (category.__class__.__name__, category.pk)
                         post_id = '%s-%s' % (post.__class__.__name__, post.pk),
                 else:
                     parent = None
                     post_id = '%s-%s' % (post.__class__.__name__, post.pk),
+                if post_id:
                     node = NavigationNode(
                         post.get_title(),
                         post.get_absolute_url(language),