Use fuzzy set analysis to infer missing values. You provide a sigma function, a membership function, and a kernel.

SQLf

Adds methods to ActiveRecord::Migration to create and manage database functions and triggers in Rails

Fetch foreign exchange rates

Adds oracle adapter to Fx gem to enable database migrations and schema to work with functions and triggers on applications using oracle as database

Adds sqlserver adapter to Fx gem to enable database migrations and schema to work with functions and triggers on applications using sqlserver as database

Simple bitmask attribute support for ActiveRecord. Forked from bruce/bitmask_attribute for Rails 2.3.11 support.

None

Rolling Schema Upgrade (RSU) database migrations for MariaDB Galera Cluster.

ActivePresenter is the presenter library you already know! (...if you know ActiveRecord)

Exports data from GenericFile and Collection to json output

show EXPLAIN log with postgresql to help in detecting slow queries.

Simple library for generating slugs

Gated releases will let you launch your new feature behind a toggle switch that doesn't require a redeploy.

Session-oriented authentication and account management system for Ruby on Rails and PostgreSQL

Adds WSDL/SOAP and XML-RPC web service support to Action Pack

Add to rails parsing date and time from float or integer

A library to map Google Calendar events with an ORM

Simple Google Cloud Storage file upload gem for Ruby. You can use this as an alternative to carrierwave with fog.

General Ledger for Ruby of Rails