require 'differ/format/patch' Differ.format = Differ::Format::Patch def gen_title t 'layouts.application.title' + if params[:region].present? region = Region.find(params[:region]).name " [#{region}]" else '' end end def meta(xml) xml.items do xml.rdf :Seq do @versions.each do |version| xml.rdf :li, 'rdf:resource' => polymorphic_url(version.item_type.tableize.singularize, id: version.item_id) end end end end def about(xml) xml.title gen_title xml.description t 'layouts.application.subtitle' xml.link root_url xml.dc :language, 'fr' xml.dc :creator, root_url meta xml end def version_changes(version) version.changeset.collect do |key, val| version.item_type.constantize.human_attribute_name(key) + ': ' + if key == 'description' Differ.diff(val[1], val[0]).to_s else "#{val[0]} → #{val[1]}" end end end xml.instruct! xml.rdf :RDF, 'xmlns:rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'xmlns' => 'http://purl.org/rss/1.0/', 'xmlns:dc' => 'http://purl.org/dc/elements/1.1/', 'xmlns:content' => 'http://purl.org/rss/1.0/modules/content/' do xml.channel 'rdf:about' => root_url do about xml end @versions.reject { |version| version.event == 'create' }.each do |version| object = version.item_type.constantize.find_by id: version.item_id next unless object.try(:moderated?) object = version.reify if object.nil? url = polymorphic_url(version.item_type.tableize.singularize, id: version.item_id) xml.item 'rdf:about' => url do xml.title "#{version.event} - #{object}" xml.link url domain = root_url.gsub(/www/, '').gsub(/http.?:../, '').gsub(/:.*/, '') xml.dc :identifier, "version_#{version.id}@#{domain}" xml.dc :date, version.created_at.iso8601 if object.try(:description) changes = version_changes(version).join "\n" xml.description changes xml.content(:encoded) { xml.cdata! changes } end end end end