Execute your ActiveRecord migrations with Percona's pt-online-schema-change. Formerly known as Percona Migrator.

Provides simple way to integrate regression test selection approach to your RSpec test suite

Add width, height and size methods to paperclip images

This Rails plugin extends ActiveRecord::Base to add automatic updating of created_by and updated_by attributes of your models in much the same way that the ActiveRecord::Timestamp module updates created_(at/on) and updated_(at/on) attributes.

A new style forum for tiny community as Rails Engine. You can mount this in you apps.

Adds typed hstore backed fields to an ActiveRecord model.

A Rails generator that generates Rails I18n locale files with automatic translation for almost every known locale.

Irwi is Ruby on Rails plugin which adds wiki functionality to your application.

Migrate large tables without downtime by copying to a temporary table in chunks. The old table is not dropped. Instead, it is moved to timestamp_table_name for verification.

A fast, safe, simple direct SQL executor for PG

A Rails interface for Intuit's Quickbooks Web Connector that's OPEN SOURCE!

ruby-plsql gem provides simple Ruby API for calling Oracle PL/SQL procedures. It could be used both for accessing Oracle PL/SQL API procedures in legacy applications as well as it could be used to create PL/SQL unit tests using Ruby testing libraries.

Extends ActiveRecord::Store.store_accessor

Send push notifications to mobile apps

Send push notifications to mobile apps

ActiveRecord migration helpers to avoid downtime

Easily run queries on shard and replica databases.

ActsAsBookable is a reservation engine for Rails applications that allows resources to be booked. You can define availability rules for bookable models and set costraints to implement different types of booking (hotels, theaters, meeting rooms...)

acts_as_favoritor is a Rubygem to allow any ActiveRecord model to associate any other model including the option for multiple relationships per association with scopes. You are able to differentiate followers, favorites, watchers, votes and whatever else you can imagine through a single relations...

Make user messageable!;-)