acts_as_tree as a gem

Model gets: root, siblings, ancestors, descendants and other methods for tree navigation

Generate CCN Treemap based on saikuro analysis

DataMapper plugin allowing the creation of tree structures from data models

RubyMacros is a lisp-like macro pre-processor for Ruby. More than just a purely textual substitution scheme, RubyMacros can manipulate and morph Ruby parse trees (in the form of RedParse Nodes) at parse time in just about any way you see fit. Macros are programmed in ruby itself. And since p...

Fully featured tree implementation for Mongoid using materialized paths and relative associations. Featuring Depth and Breadth first search.

This gem provides the jQuery plugin jquery-treeview for your Rails 3.1 application.

Tree structures for ActiveRecord

A generic tree data structure supporting depth-first and breadth-first traversal, node search, path finding, and hash serialization. Each node tracks its parent, children, depth, height, and size.

Quick #rebuild! method implementation for closure_tree on PostgreSQL.

Format your RSpec dots like a christmas tree!

CompTree is a parallel computation tree structure based upon concepts from pure functional programming.

RipperTree is like tree command for Ripper#sexp.

Build a tree with historical versions and multiple scopes by one model class.

Directory tree

Data tree utility gem

DumbDownViewer (ddv) is a recursive directory listing command with limited functionality. In some cases, you can use ddv like "tree" command (http://mama.indstate.edu/users/ice/tree/), even though these commands are not compatible: Several options of "tree" are missing in ddv, but there are some ...

HashTree::Set and HashTree::Map provides simple tree operations. It is still very much work-in-progress

Drag and Drop Tree UI for Angular

organize a tree data