module CollectiveIdea
  module VersionNumber
    # app_version will return <span id="version_number">Version: 123</span> by default.
    # pass options in as you would to content_tag to override.
    # "Version: " is controlled by the :prefix option.
    def app_version(options = {})
      options = {:tag => 'span', :prefix => "Version: ", :id => "version_number"}.merge(options)
      content_tag options.delete(:tag), "#{options.delete(:prefix)}#{APP_VERSION}", options
    end
  end
end