app/helpers/open_graph_helper.rb

   1 module OpenGraphHelper
   2   def opengraph_tags(title = nil, og_image = nil)
   3     tags = {
   4       "og:site_name" => t("layouts.project_name.title"),
   5       "og:title" => title || t("layouts.project_name.title"),
   6       "og:type" => "website",
   7       "og:image" => og_image ? URI.join(root_url, og_image) : image_url("osm_logo_256.png"),
   8       "og:url" => url_for(:only_path => false),
   9       "og:description" => t("layouts.intro_text")
  10     }
  11
  12     safe_join(tags.map do |property, content|
  13       tag.meta(:property => property, :content => content)
  14     end, "\n")
  15   end
  16 end