mixonic/ranked-model — pull request #30 by mikeycgto (2012-11-15 14:23:50+00:00)
Title: Add :unless option to Ranker

For my particular use case, I'm using ranked-model with a self-referential tree structure. I don't want root nodes to have a position. Thus, I added an unless option that is checked in `Ranker#handle_ranking`.

For example:

ranks :position, unless: :root_node?