Minidress a lightweight factory_girl which will work outside of Rails(I use it with jruby_appengine/Sinatra)

minidress.rb

# the more proper miniskirt who doesn't have to walk the rails

class Minidress
  @@factories = {}
  class << self
    def define(name, &block)
      @@factories[name.to_s] = block
    end
 
    def build(name, attrs = {})
      new(get_constant(name).new, &@@factories[name.to_s]).record
    end
 
    def attributes_for(name, attrs = {})
      build(name, attrs).attributes
    end
 
    def create(name, attrs = {})
      build(name, attrs).tap { |record| record.save }
    end
    
    def get_constant(name_sym)
      name = name_sym.to_s.split('_').collect {|s| s.capitalize }.join('')
      Object.const_defined?(name) ? Object.const_get(name) : Object.const_missing(name)
    end
  end
 
  attr_reader :record
  def initialize(record)
    @record = record and yield self
  end
 
  def association(name)
    send name, self.class.create(name)
  end
 
  def sequence(name)
    send name, yield(@n ||= record.class.maximum(:id).to_i + 1, record)
  end
 
  private
  def method_missing(name, *value)
    record.send "#{name}=", *(block_given? ? yield(record) : value)
  end
end
 
def Minidress(name, attrs = {})
  Minidress.create(name, attrs)
end
 
Factory = Minidress
alias Factory Minidress