Chapter 12: Followed posts with a join (12c)

app/main/views.py

@@ -114,7 +114,7 @@ def edit(id):
 def follow(username):
     user = User.query.filter_by(username=username).first()
     if user is None:
-        flash('Invalud user')
+        flash('Invalid user')
         return redirect(url_for('.index'))
     if current_user.is_following(user):
         flash('You are already follwoing this user.')

app/models.py

@@ -226,6 +226,11 @@ class User(UserMixin, db.Model):
         return self.followers.filter_by(
             follower_id=user.id).first() is not None
 
+    @property
+    def followed_posts(self):
+        return Post.query.join(Follow, Follow.followed_id == Post.author_id) \
+               .filter(Follow.follower_id == self.id)
+
     def __repr__(self):
         return '<User %r>' % self.username