Mongoid
Ruby ODM framework for MongoDB
...This Mongoid community organization is a group of open-source contributors around the Mongoid ODM not affiliated with the company, MongoDB. Mongoid is customarily configured through a mongoid.yml file that specifies options and clients. The simplest configuration is as follows, which configures Mongoid to talk to a MongoDB server at “localhost:27017” and use the database named “mongoid”. If you are not using Ruby on Rails, Mongoid configuration must be loaded manually. This can be done via the Mongoid.load! method, which takes the configuration file path as its argument. It is also possible to configure Mongoid directly in Ruby, without using a configuration file. ...