tubedude/xirr

module Xirr
  include ActiveSupport::Configurable

  # Sets as constants all the entries in the Hash Default values
  default_values = {
    eps:             '1.0e-6'.to_f,
    period:          365.0,
    iteration_limit: 50,
    precision:       6,
    default_method:  :newton_method,
    fallback:        true,
    replace_for_nil: 0.0,
    compact: true,
    raise_exception: false
  }

  # Iterates though default values and sets in config
  default_values.each do |key, value|
    self.config.send("#{key.to_sym}=", value)
    const_set key.to_s.upcase.to_sym, value
  end
end