Simple Flash Helper to display any flashes in a class

flash_helper.rb

module FlashHelper
  # Output a series of divs with the class being the flash type, and the content being the flash message
  def render_flashes
    flash.inject(String.new.html_safe) do |html, (key, value)|
      content_tag(:div, value, :class => key)
    end
  end
end