jrochkind/attr_json

Work with JSON-backed attributes as ActiveRecord-ish models

ActiveRecord::Store but with type definition

🏁 Bit fields for ActiveRecord

Easily and efficiently make your ActiveRecord models support hierarchies

High Performance JSON Serialization for ActiveRecord & Ruby Objects

Adds additional postgres functionality to an ActiveRecord / Rails application

Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

A collection of lightweight, standardized, rails-oriented patterns.

Search engine like fulltext query support for ActiveRecord