Pipeline is a Rails plugin/gem to run asynchronous processes in a configurable pipeline.

A simple Rails 3 Gem that extends ActiveRecord. Let's you specify model attributes to dynamically create search methods similar to searchlogic's dynamic named scopes. It can be used to help Rails 2 projects with searchlogic migrate to Rails 3 with metasearch a little easier.

DumpedRailers helps you take a snapshot of ActiveRecord models in Rails-compatible fixture format, and re-import them wherever necessary without destroying current data you have.

For tasks that can be started early and evaluated late. Typically one might want start multiple heavy tasks concurrent. This is already solvable with threads or the [reactor-pattern](http://rubyeventmachine.com/) but setting this up could be cumbersome or require direct interactions with threads ex. Dunder is a simple way of abstracting this: you simply pass a block to Dunder.load with the expected class as the argument

Dynamically add attributes on ActiveRecord.

EagerRecord extends ActiveRecord to automate association preloading. Each time a collection of more than one record is loaded from the database, each record remembers the collection that it is part of; then when one of those records has an association accessed, EagerRecord triggers a preload_associations for all the records in the originating collection. Never worry about that :include option again!

Easyhooks is a simple gem to that allows you to create hooks in your ActiveRecord models.

Simple Ruby code profiler to use both in Rails applications and generic Ruby scripts.

Easy tagging for Rails

Provides a utility to fetch Avaya CMS / ECHI binary files, convert them and insert into a database table via ActiveRecord

A library for using elasticsearch-model with globalize

Rails plugin that makes value objects embedded into activerecord objects

Rails I18n: a very lightweight tool to allow you to transparently store multiple translations of attributes directly inside each DB record -- no extra database tables needed to store the localization data!

Save hash representation of class in json column as embedded model.

A framework for modelling the impact of real-world entities.

Emojimmy makes it possible to store emoji characters in ActiveRecord datastores that don’t support 4-Byte UTF-8 Unicode encoding.

ActiveModel validator for emojis, powered by the unicode-emoji gem, to ensure your Models do not contain characters you may not be able to handle

Encore provides serializers and persisters to build JSON API-compliant Web services with Ruby on Rails.

EnumeratedField is a library that provides some nice methods when a string column is used like an enumeration, meaning there is a list of allowable values for the string column.

Enum extension introduces: enum supersets, enum mass-assign, easy localization, and more sweetness to Active Record enums.