Undo for Rails/ActiveRecord - covers destroy, update and create

MessageQuickly includes a mountable engine to process webhooks, and an API wrapper to talk to Facebook.

Extraction of MRI metadata.

Metova libraries for Ruby on Rails

Metricky

Report key app statistics to the Librato Metrics service and easily track your own custom metrics.

Similar article extension for middleman-blog. Finds similar articles using tags, part-of-speech or custom lambda.

Microbial Genomes Atlas

Rake tasks for Rails that add groups to migrations

Facebook, Twitter and Instagram integration for Ruby on Rails

MiniTest matchers for ActiveModel::Validations

Save test run data to find slow tests and other interesting information

A simple and robust ActiveRecord extension for database sharding. Supports shards management with hash slots, re-sharding support, efficient KVS queries, limited RDB queries.

mmunicode_rails lets you convert you rails app input data to Myanmar Unicode regardless of which fonts the users used.

Dedicated controllers for each of your Rails route actions

mogbak makes it easy to backup and restore mogilefs domains

Ruby-Mongrel2 is a complete Ruby connector for Mongrel2.

For more information see the README.

A Rails Engine for integrating with Mux.

DB constraints in migrations similiar to ActiveRecord validations. Core classes