Alternative way of method factory

method_factory

Financing::FINANCINGS.each do |method|
  define_method method do
    if current_period && current_period != :nil
      instance_variable_defined?("@#{method}") ? nil : instance_variable_set("@#{method}", Hash.new)
      instance_variable_get("@#{method}")[current_period.id] ||= current_period.method("#{method}").call
    else
      0.0
    end
  end
end

yet_another_method_factory

Financing::FINANCINGS.each do |method|
  define_method method do
    if current_period && current_period != :nil
      instance_variable_defined?("@#{method}") ? nil : instance_variable_set("@#{method}", Hash.new)
      instance_variable_get("@#{method}")[current_period.id] ||= current_period.send(method)
    else
      0.0
    end
  end
end