Question

Models:

class User
  include Mongoid::Document

  embeds_many :user_topics
end


class UserTopic
  include Mongoid::Document

  embedded_in :user
  embeds_many :user_topic_examples
end

and

class UserTopicExample
  include Mongoid::Document

  embedded_in :user_topic
end

How can I get all user_topic_examples that belongs to a specific user:

user.user_topic_examples

or

user.user_topics.user_topic_examples

Thanks.

Answer 1

It is quite straightforward:
UPDATED

def user_topic_examples
  user_topics.inject([]) {|result, ut| result + ut.user_topics_examples }
end