Mongoid batch collection insertion: how to get IDs of newly created items?

As explained here , it's pretty easy to batch-insert an array of new documents into a MongoDB collection:

batch = [{:name => "mongodb"}, {:name => "mongoid"}]  
Article.collection.insert(batch)

      

        
        
        
      

    

What is not easy for me is how to get the list of newly created ids. Is it possible to code something like:

batch = [{:name => "mongodb"}, {:name => "mongoid"}]
result = Article.collection.insert(batch)

result[:ids] # not real code

      

        
        
        
      

    

Thanks in advance!