gregbell/active_admin — pull request #2252 by LeakyBucket (2013-06-05 23:29:02+00:00)
Title: Modified breadcrumb_helper so that it works with Models that don't use t...

...he default primary key. This will also work with Rails 4.

We were having issues with models that don't use the default primary key of id. This change allows for custom primary key definitions while still preserving original behavior.