A database backed ActiveSupport::Cache::Store

Supplies TimeOfDay and Shift class that includes parsing, strftime, comparison, and arithmetic.

Scale database reads with replicas in Rails

Often times you'll end up with empty strings where you really want nil at the database level. This plugin automatically converts blanks to nil and is configurable.

Rails performance tests (removed from core in Rails 4.0)

Deprecated finder APIs extracted from Active Record.

Citus Rails Integration (Rails 4.2)

The EmailAddress Gem to work with and validate email addresses.

PostgreSQL Cursor is an extension to the ActiveRecord PostgreSQLAdapter for very large result sets. It provides a cursor open/fetch/close interface to access data without loading all rows into memory, and instead loads the result rows in 'chunks' (default of 1_000 rows), buffers them, and returns the rows one at a time.

Active Record (~>3.2) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

SchemaPlus is a gem that simply pulls in a collection of other gems from the SchemaPlus family of ActiveRecord extensions

Active Record (>=3.1) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

DbCharmer is a Rails plugin (and gem) that could be used to manage AR model connections, implement master/slave query schemes, sharding and other magic features many high-scale applications need.

Active Record (>=3.0) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

Active Record (>=3.0) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

Simple OAuth 2.0 provider toolkit

Make it easy to upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates merge functions for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

Lightweight state machine extracted from ActiveModel

Bit fields for ActiveRecord: This gem lets you use a single integer column in an ActiveRecord model to store a collection of boolean attributes (flags). Each flag can be used almost in the same way you would use any boolean attribute on an ActiveRecord object.

This gem allows you to easily use [Hashids](http://hashids.org/ruby/) in your Rails app. Instead of your models using sequential numbers like 1, 2, 3, they will instead have unique short hashes like "yLA6m0oM", "5bAyD0LO", and "wz3MZ49l". The database will still use integers under the hood, so this gem can be added or removed at any time.