:plain var t = $("#published-#{@announcement.id}"); t.removeClass('btn-default'); t.removeClass('btn-success'); t.removeClass('btn-warning'); t.addClass("btn-#{@announcement.published? ? 'success' : 'default'}"); t.attr("data-params","published=#{!@announcement.published?}"); t.text("#{@announcement.published? ? "Yes" : "No"}");