I came across an issue while using CompositeStorage, its looks like the add_item is required. After uncommenting it looks like my issue was resolved.
After reviewing the interface section of http://ruote.rubyforge.org/implementing_a_storage.html it looks like it should be there, but there may be a reason that it was commented.
added add_item method to composite storage, it looks like it is requi…
…red by all storage providers