Easy role authorization in rails

Preload factories (Factory Bot) just like fixtures. It will be easier and, probably, faster!

Ferry is a data migration and visualization command line tool rubygem that seeks to simplify the increasingly prevalent big data problems for developers

hydra_attribute is an implementation of EAV pattern for ActiveRecord models.

Jazz theory is a mathematical system of concepts and relationships, why not make an ActiveModel representation of those concepts?

Organizes ActiveRecord models into a tree/hierarchy using a materialized path implementation based around PostgreSQL's ltree datatype. ltree's operators ensure that queries are fast and easily understood.

A user-centric flagging extension for Rails 3 applications.

Let ActiveRecord serialize and cast your UUIDs to and from binary columns in your database.

Loader to solve N+1 issue for good.

Extend Ruby on Rails ActiveRecord with Neo4j nodes. Keep RDBMS and utilize the power of Neo4j queries. Originally by @elado.

Store nested hashes and other types in ActiveRecord hstores

Write-through and Read-through Cacheing for ActiveRecord

Disables observers during testing, allowing you to write model tests that are completely decoupled from the observer.

Off The Rails ActiveRecord: Use ActiveRecord with Grape, Sinatra, Rack, or anything else! Formerly known as 'grape-activerecord'.

Extends Paperclip with Dropbox storage.

An extension to paper_trail, using this you can fetch actual object who was responsible for this change

Adds the validates_uniqueness_without_deleted validator to ignore deleted fields when validating for uniqueness.

pg-eyeballs is a ruby gem that gives you detailed information about how the SQL queries created by the active record code you write are executed by the database. It gives you an easy, ruby friendly way to see the output of the Postgres EXPLAIN command and integrates with the popular query analysi...

Organize ActiveRecord model into a tree structure using PostgreSQL LTree

pluto-models - planet schema 'n' models for easy (re)use