2.11
Ancestry allows the records of a ActiveRecord model to be organized in a tree
structure, using the materialized path pattern. It exposes the standard
relations (ancestors, parent, root, children, siblings, descendants)
and allows them to be fetched in a single query. Additional features include
named scopes, integrity checking, integrity restoration, arrangement
of (sub)tree into hashes and different strategies for dealing with orphaned
records.
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1.62
An awesome nested set implementation for Active Record
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0.91
Easily and efficiently make your ActiveRecord model support hierarchies
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0.45
A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.
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Activity
0.07
NOTICE: official repository moved to https://github.com/bbommarito/acts_as_nested_set
0.06
better_nested_set Rails plugin (my fork from official SVN)
0.02
ActiveRecord extension for sorted adjacency lists support
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Activity
0.01
Arboreal is yet another extension to ActiveRecord to support tree-shaped data structures.
Internally, Arboreal maintains a computed "ancestry_string" column, which caches the path from the root of
a tree to each node, allowing efficient retrieval of both ancestors and descendants.
Arboreal surfaces relationships within the tree like "children", "ancestors", "descendants", and "siblings"
as scopes, so that additional filtering/pagination can be performed.
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0.01
Adds directed acyclic graph functionality to ActiveRecord.
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