A validate image ratio gem for carrierwave

Build client libraries compliant with specification defined by jsonapi.org

Cassandra backed ORM

Permits integrate models from diferent apps using Cassandra for sync

Cassandra ActiveModel

Powerful ORM for Cassandra

Use cassandra with rails by adding active record style methods using active model.

Cassandra ActiveModel implementation for Rails with migrations and full query table support.

Her is an ORM that maps REST resources and collections to Ruby objects

Ruby wrapper around C# Cat Engine

Modular implementation of ServiceObject pattern

Helps make complex forms

Catwalk is a gem for showing off models. It allows you to seperate presentation logic from data models.

Cave Forms encapsulate validation logic into an object with that single responsibility

cell_set is a ruby implementation of the CellSet and related models from mondrian.olap4j. The cell_set gem automatically mixes in a to_ruby method on Mondrian::OLAP::CellSet that can be called from the instance variable @raw_cell_set in an instance of Mondrian::OLAP::Result. Normally the to_rub...

Cells replace partials and helpers with OOP view models, giving you proper encapsulation, inheritance, testability and a cleaner view architecture.

Ruby gem for managing the core functions outlined in RFC-3280 for PKI

A simple, yet flexible solution to tracking changes made to objects in your database.

ActiveModel validator that acts like state machine

A character encoding validator for Rails. This is used to detect encoding errors.