Contents

module ActiveObject::Integer

  ROMAN_VALUES = {
    M: 1000, CM: 900, D: 500, CD: 400, C: 100, XC: 90, L: 50, XL: 40, X: 10,
    IX: 9, V: 5, IV: 4, I: 1
  }

  def factorial
    return(1) if zero?
    2.upto(self).inject(1) { |p, n| p * n }
  end

  def of(&block)
    Array.new(self, &block)
  end

  def roman
    return("") if zero?
    return("-#{(-self).roman}") if self < 0

    ROMAN_VALUES.each { |k, v| return("#{k}#{(self - v).roman}") if v <= self }
  end

  def time
    Time.at(self)
  end

end

Integer.send(:include, ActiveObject::Integer) if ActiveObject.configuration.autoload_integer

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
active_object-3.1.0	lib/active_object/integer.rb
active_object-3.0.0	lib/active_object/integer.rb