BetterNestedSet in Ruby on Rails

This Rails plugin is an extension of ActsAsNestedSet that adds some enhancements in response to confusion about the use of ActsAsNestedSet. You might use this plugin to model a threaded discussion board. The underlying implementation uses Modified Preorder Tree Traversal for efficiency and scalability. Homepage API docs Table Schema create table tree_item ( id int(11) unsigned not null auto_incre

[t-wada]

ActsAsNestedSetよりも、こちらのほうが良いのかな?