Nested Records

ancestry

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.

ancestry 9,934,338 Downloads Last release

stefankroes/ancestry Last commit

closure_tree

Easily and efficiently make your ActiveRecord model support hierarchies

closure_tree 2,070,797 Downloads Last release

mceachen/closure_tree Last commit

acts_as_tree

A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.

acts_as_tree 5,393,295 Downloads Last release

tree/master

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