paper_trail by paper-trail-gem

Annotate Rails classes with schema and routes info. Maintained by ctran on GitHub, where it has earned 4,491 stars from the community.

Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models. Maintained by collectiveidea on GitHub, where it has earned 3,494 stars from the community.

Textacular exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular will extend ActiveRecord with named_scope methods making searching easy and fun!. Maintained by textacular on GitHub, where it has earned 955 stars from the community.