acts_as_account implements double entry accounting for Rails models. Your models get accounts and you can do consistent transactions between them. Since the documentation is sparse, see the transfer.feature for usage examples.

An advertising manager mountable engine

Core engine for adva-cms2.

Static engine for adva-cms2.

Creates aliases of ActiveRecord named scopes.

ActiveModel Serializers addon for eliminating N+1 queries problem from the serializers.

Document Rest APIs.

Atig.rb is Twitter Irc Gateway.

Generates attr_accessors that encrypt and decrypt attributes transparently

A simple gem that audit ActiveRecord models' attributes or methods by taking snapshots and diff them for you. Starting from scratch to work with Rails 3.2.2 onwards

The unofficial X-Ray Tracing SDK for Ruby.

Birthday gem creates convienent methods for date and datetime fields in ActiveRecord, making it possible to look for birthdays without a hassle.

BrowserWarrior is a Ruby on Rails engine that let you reject your non-modern browser user just one line code

Bulkrax is a batteries included importer for Samvera applications. It currently includes support for OAI-PMH (DC and Qualified DC) and CSV out of the box. It is also designed to be extensible, allowing you to easily add new importers in to your application or to include them with other gems. Bulk...

Callback Hell analyzes your Rails application models and provides useful insights on callbacks and validations defined

CarrierWave storage for Dropbox

A really simple shopping cart implementation for rails.

ActiveRecord plugin designed to allow simple multiple table (class) inheritance.

A terminal user interface to fetch and play cryptic crosswords

Lazily loads large columns on demand. By default, does this for all TEXT (:text) and BLOB (:binary) columns, but a list of specific columns to load on demand can be given. This is useful to reduce the memory taken by Rails when loading a number of records that have large columns if those partic...