+
+ def get_active_users(self):
+ active_users = []
+
+ active_users.append(self.author)
+
+ for answer in self.answers:
+ active_users.append(answer.author)
+
+ for child in self.children.all():
+ active_users.append(child.author)
+ for grandchild in child.children.all():
+ active_users.append(grandchild.author)
+
+ # Remove duplicates
+ unique_active_users = []
+ for user in active_users:
+ if user not in unique_active_users:
+ unique_active_users.append(user)
+ active_users = unique_active_users
+ del unique_active_users
+
+ return active_users