I'd like to announce the availability of ActiveConductor 0.2.1, a Rails plugin from Scott Taylor that recently got some love from me and which is available as RubyGem now: https://rubygems.org/gems/active_conductor
The gem uses the conductor pattern to wrap multiple models as one object. It's basically like the Presenter pattern, but for saving and creating multiple models. It is built on top of ActiveModel and slims down controller code for creating multiple models.
The Gem has been tested on both Ruby 1.8.7-p330 and Ruby 1.9.2-p136.
Enjoy,
Michael