Web Reference: How does ancestry work in Ruby? Learn about class inheritance, method lookup order, and modules. This deep dive covers how Ruby searches for methods in inclu... Ancestry is a gem that allows rails ActiveRecord models to be organized as a tree structure (or hierarchy). It employs the materialized path pattern which allows operations to be performed efficiently. 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.
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