Uses a vertical schema to add custom fields.

Adds ability to put dynamic fields into active record models

The email equivalent of has_secure_password for ActiveRecord.

Embedded data objects for ActiveRecord models

Encrypted attributes for Rails models.

Based on acts_as_list, but allows nil elements to be not a part of the featuerd list.

This gem is based on homonym plugin from fnando https://github.com/fnando/has_friends

Dead simple Gravatar URL generator

Make it easy to use handles (callsigns/monikers/usernames) in URLs, even if they might be blank. Provides sensible validations and a find_by_id_or_handle method.

Use an ActiveRecord Hash column as backend for dynamic attributes. Dynamic attributes will act like table columns. Just include the HashAttributes module in your ActiveRecord::Base class.

Provides `hashed` method to ActiveRecord dataset, that return hash where keys is value of some attribute of object (default – primary key of used table).

Hash attributes using SHA512 (or your custom hash strategy). Works with and without ActiveRecord.

HashidsUri turns your sequentially generated id in the URL into a Hashid see **hashids.org**.

Tree behavior for ActiveRecord models and Mongoid documents.

Un jeu de Hashiwokakero

Pivot hash.

A simple Hash to JSON serializer with some helpers to improve JSON model columns.

HashStore store RubyHash into Redis as JSON. Automatically add redis commands(GET,SET,DEL,EXITS) methods to your class. HashStore was designed to work with ActiveRecord, but also work with Non-ActiveRecord Class.

Script that listens to a tag and retweets messages with that tag. Supports both OAuth and HTTPAuth authentication strategies. Retweets using Twitter's native RT feature. Originally made for Scotland on Rails '09 by Mark Connell (http://github.com/rubaidh). Refactored and reworked after Euruko '10 by Tomasz Stachewicz (http://github.com/tomash)

Script that listens to a tag and retweets messages with that tag. Supports both OAuth and HTTPAuth authentication strategies. Retweets using Twitter's native RT feature. Originally made for Scotland on Rails '09 by Mark Connell (http://github.com/rubaidh). Refactored and reworked after Euruko '10 by Tomasz Stachewicz (http://github.com/tomash)