Category

Active Record Nesting

Model database records as nested data structures

2.11
No release in over a year
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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0.91
No release in over 3 years
Low commit activity in last 3 years
There's a lot of open issues
Easily and efficiently make your ActiveRecord model support hierarchies
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0.45
No release in over 3 years
Low commit activity in last 3 years
There's a lot of open issues
A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.
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0.07
No commit activity in last 3 years
NOTICE: official repository moved to https://github.com/bbommarito/acts_as_nested_set
0.06
No commit activity in last 3 years
There's a lot of open issues
better_nested_set Rails plugin (my fork from official SVN)
0.01
No release in over 3 years
Low commit activity in last 3 years
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
No release in over 3 years
Low commit activity in last 3 years
There's a lot of open issues
Adds directed acyclic graph functionality to ActiveRecord.
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