Mongoid Tree

Implements the materialized path pattern for fast ancestor and descendant queries, enabling performant hierarchical data retrieval without recursive database calls.

Offers a core tree module with optional additions like ordering and traversal, allowing developers to include only needed features and avoid bloat, as highlighted in the philosophy section.

Provides a robust set of methods such as ancestors, descendants, siblings, and leaves for easy tree navigation, detailed in the utility methods and traversal modules.

Includes multiple strategies like nullify, move, or delete for handling child nodes when destroying parents, giving fine-grained control over data integrity and cleanup.