spree/spree — pull request #5073 by athal7 (2014-07-28 23:07:26+00:00)
Title: Implement exchanges

@huoxito per your request, here is a PR to lay out the initial code for exchanges (on top of commits from two dependent pull requests https://github.com/spree/spree/pull/5055 and https://github.com/spree/spree/pull/5042)

It is more pseudocode than anything else right now, but hopefully gives you an idea of the direction