GitHub - stefankroes/ancestry: Organise ActiveRecord model into a tree structureAncestry Overview Ancestry is a gem that allows rails ActiveRecord models to be organized as a tree structure (or hierarchy). It employs the materialized path pattern which allows operations to be performed efficiently. Features There are a few common ways of storing hierarchical data in a database: materialized path, closure tree table, adjacency lists, nested sets, and adjacency list with recurs
