Ruby on Rails
Track changes to your rails models
Object-based searching.
AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoi...
Annotate Rails classes with schema and routes info
Versioned database views for Rails
Audited (formerly acts_as_audited) is an ORM extension that logs all cha...
Elasticsearch integrations for ActiveModel/Record and Ruby on Rails
SQL query builder, written in c#, helps you build complex queries easily...
Easy activity tracking for models - similar to Github's Public Activity
Database Sharding for ActiveRecord
IdentityCache is a blob level caching solution to plug into Active Recor...
Turbo-charged counter caches for your Rails app.
Easily and efficiently make your ActiveRecord models support hierarchies
Enumerated attributes with I18n and ActiveRecord/Mongoid support