Posted by Damien Tournoud on
Tree is a set of modules providing a framework for storing and manipulating hierarchical data:
- Tree — Provides core support for storing tree data structures.
- Treefield — Extends Entity Reference to provide a tree of entities.
- Treeable — Allows multi-value fields to be stored and displayed as hierarchical trees. Basically any Field API field can be transformed into a tree. Requires hook_field_schema_alter()