Ruby gem wrapper around PDSCAN library. This only acts as a simple method to call pdscan library included in the gem. Only for the linux.

acts_as_xlsx lets you turn any ActiveRecord::Base inheriting class into an excel spreadsheet. It can be added to any finder method or scope chain and can use localized column and sheet names with I18n.

Simple geocoding for Rails ActiveRecord models. See the README for more details.

Rails plugin that adds powerful full text search capabilities to ActiveRecord models.

A recommendation engine for Rails.

An easy way to include external video services in a rails app. This gem provides you wrappers for the most common video services, such as Youtube, Vimeo, Flickr, and so on...

*Atomic archiving/unarchiving for ActiveRecord-based apps* We had the problem that acts_as_paranoid and similar plugins/gems always work on a record by record basis and made it very difficult to restore records atomically (or archive them, for that matter). Because the archive and unarchive met...

Simple tagging gem for Rails using postgres array.

Directed Acyclic Graph hierarchy for Rail's ActiveRecord, supporting Rails 4.x

Scrivener removes the validation responsibility from models and acts as a filter for whitelisted attributes.

It just makes sense to store mutable, site-wide, admin-level settings in the database. Right? A key-value table may be more flexible, but maybe we don't want to be flexible! If you truly want that flexibility: http://github.com/stephencelis/kvc

Represent ActiveRecord Markdown, Textile, RDoc columns as Markdown, Textile, RDoc objects using various external libraries to convert to HTML.

version_fu helps version your ActiveRecord models. It is based on Rick Olson's acts_as_versioned and is compatible with Rails 3.

Use Youtube-Like ID in ActiveRecord seamlessly.

This gem adds full text search capabilities and many other nifty features from Apache Solr to any Rails model.

Simulate multi-table inheritance for activerecord models using a polymorphic association

ActsAsTextcaptcha provides spam protection for Rails models with text-based logic question captchas. Questions are fetched from Rob Tuley's textcaptcha.com They can be solved easily by humans but are tough for robots to crack.

A ruby gem for acts_as_taggable to mongo

Flexible, configurable, and easy to use with the defaults. Supports 3 different ways to manage rating statistics.

ActiveRecord extension that turns your models into graph objects. Includes helper methods for adding <meta> tags and the Like Button to your views.