Sub-millisecond graph layout engine with greedy allocation and poly-relationship support.
Ｄｏｗｎｌｏａｄ ｅｂｏｏｋ ｐｄｆ ｍｏｂｉ ｅｐｕｂ Dedeker Winston The Smart Girl's Guide to Polyamory is available now
This is just an extraction from Ransack/Squeel. You probably don't want to use this directly. It extends ActiveRecord's associations to support polymorphic belongs_to associations.