zdennis/activerecord-import — pull request #136 by amatsuda (2014-03-28 11:36:02+00:00)
Title: Don't directly touch AR::Base, but do it via AS.on_load

Otherwise, requiring this gem (usually via Bundler) will immediately load AR::Base and trigger all of its initializers, which would slowdown the server startup, spec execution that does not depend on AR, etc.