Simple tagging gem for Rails using postgres array.

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

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.

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.

ActiveRecord extension that logs all changes to your models in an audits table

acts_as_reportable provides ActiveRecord support for Ruby Reports

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.

Make user messageable!;-)

Generate ActiveRecord models on the fly for your tests

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

Provides acts_as_gov_uk_date to mark Rails model attributes as dates that will be entered as three separate text edit boxes, and a form_builder method gov_uk_date_field to display those fields.

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.

Manage multiple assets related to a specific model

DRYing up Many-to-Many Relationships in ActiveRecord

Simple Shopping Cart implementation

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

A Rails plugin that will ensure an ActiveRecord object is immutable once saved. Optionally, you can specify attributes to be mutable if the object is in a particular state (block evaluates to true).

LinkedIn Open Source type ahead tool's REST API as a ruby gem. Now with Reddis support.

Ruby on Rails plugin for easy translation of database fields.