_blurb.html.haml

#contentButton{ :class => cycle_with_last(blurb, @content, options = {:one => 'first ', :two => 'second ', :three => 'third ', :last => 'last '}) + blurb.id.to_s }
  = image_tag('ancillary/ribbon_top.png', :class => 'ribbonTop')
  = image_tag('ancillary/ribbon_bottom.png', :class => 'ribbonBot')
  = image_tag blurb.image.url, :class => "blurbImage" unless blurb.image.blank?
  %p.heading= blurb.name
  %p.shortContent= blurb.short_content.presence || nil
  .contents= blurb.content
= add_row_on_last(blurb, @content)

blurbs_helper.rb

  def add_row_on_last(object, collection)
    if object == collection.last
      haml_tag 'div.contentRow'
    end
  end