model.rb

class Pumphouse::Model
  extend ActiveModel::Naming

  def self.connection=(*args)
    @connection = Cassandra.new(*args)
  end
  
  def self.connection
    @connection
  end
  
  def self.load(key)
    attributes = Pumphouse::Model.connection.get(model_name, key)
    instantiate(key, attributes) if attributes
  end
  
  def initialize(attributes)
    @attributes = attributes
    @key = UUID.new.to_guid
  end
  
  def self.instantiate(key, attributes)
    returning allocate do |object|
      object.instance_variable_set("@key", key)
      object.instance_variable_set("@attributes", attributes)
    end
  end
  
  def attributes
    @attributes
  end
  
  def save
    returning @key do
      Pumphouse::Model.connection.insert(self.class.model_name, @key.to_s, attributes, {})
    end
  end
end

vegetable.rb

Pumphouse::Model.connection = 'Pumphouse'

class Vegetable < Pumphouse::Model
end

key = Vegetable.new(:name => 'Aubergine').save

Vegetable.find(key)