Multibase provides support for Rails to manage several databases by extending ActiveRecord tasks that create, migrate, and test your databases

Add support for multiple, and varied sized bitfields to Active Record.

Easy MultiClient Support for Rails.

rails multiple database connections

See README.md for details

Creates a Rails 3 engine configuration with multiple dummy apps and test framework configured and ready to go

Multifilter matches an input to each column in table, letting the user filter the table based on multiple inputs.

multi_models_paginator

MultiModelWizard is a way to create and update multiple ActiveRecord models using one form object.

Patch for multiparameter-wise assignment of transient (non-db-backed) model attributes in Rails' (Active Record).

Set a DateTime via two accessors, one for the date, one for the time

Elo library for single and multiplayer games

Simple multitenancy for rack-based web servers

Search multiple columns of a database, returning a hash of non-empty columns

Advanced seed data handling for Rails, make it able to separate seeds.rb

Make a naive rails app multisite easily

Multi-Step is a Rails engine for easily creating multi step forms (i.e. form wizard)

Multiupload-uploadify is a gem for multiupload using the uploadify plugin

Makes everyday search easy-ish.

Gem allows to chage locale through routes