so here's what I have in my responds_to block
Code Ruby:
      format.json { render :json => @users.to_json(:only => [:id, :first_name, :last_name]) }

But what I'm needing to come back is the :id field to be labeled "value" and then combine the :first_name and :last_name into a "label".

The autocomplete javascript I'm using is looking for "label" and "value" fields to populate the dropdown. Been searching and this seems to be a pain point on rails. Isn't there a way to specify a index.json.erb file and have it use that to build a response?

Any help/advice is appreciated.