1 files changed, 118 insertions, 0 deletions
diff --git a/ruby/lib/rss/maker/taxonomy.rb b/ruby/lib/rss/maker/taxonomy.rb
new file mode 100644
index 0000000..2116038
--- /dev/null
+++ b/ruby/lib/rss/maker/taxonomy.rb
@@ -0,0 +1,118 @@
+require 'rss/taxonomy'
+require 'rss/maker/1.0'
+require 'rss/maker/dublincore'
+
+module RSS
+  module Maker
+    module TaxonomyTopicsModel
+      def self.append_features(klass)
+        super
+
+        klass.def_classed_element("#{RSS::TAXO_PREFIX}_topics",
+                                  "TaxonomyTopics")
+      end
+
+      def self.install_taxo_topics(klass)
+        klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
+          class TaxonomyTopics < TaxonomyTopicsBase
+            def to_feed(feed, current)
+              if current.respond_to?(:taxo_topics)
+                topics = current.class::TaxonomyTopics.new
+                bag = topics.Bag
+                @resources.each do |resource|
+                  bag.lis << RDF::Bag::Li.new(resource)
+                end
+                current.taxo_topics = topics
+              end
+            end
+          end
+EOC
+      end
+
+      class TaxonomyTopicsBase < Base
+        attr_reader :resources
+        def_array_element("resource")
+        remove_method :new_resource
+      end
+    end
+
+    module TaxonomyTopicModel
+      def self.append_features(klass)
+        super
+
+        class_name = "TaxonomyTopics"
+        klass.def_classed_elements("#{TAXO_PREFIX}_topic", "value", class_name)
+      end
+
+      def self.install_taxo_topic(klass)
+        klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
+          class TaxonomyTopics < TaxonomyTopicsBase
+            class TaxonomyTopic < TaxonomyTopicBase
+              DublinCoreModel.install_dublin_core(self)
+              TaxonomyTopicsModel.install_taxo_topics(self)
+
+              def to_feed(feed, current)
+                if current.respond_to?(:taxo_topics)
+                  topic = current.class::TaxonomyTopic.new(value)
+                  topic.taxo_link = value
+                  taxo_topics.to_feed(feed, topic) if taxo_topics
+                  current.taxo_topics << topic
+                  setup_other_elements(feed, topic)
+                end
+              end
+            end
+          end
+EOC
+      end
+
+      class TaxonomyTopicsBase < Base
+        def_array_element("topic", nil, "TaxonomyTopic")
+        alias_method(:new_taxo_topic, :new_topic) # For backward compatibility
+
+        class TaxonomyTopicBase < Base
+          include DublinCoreModel
+          include TaxonomyTopicsModel
+          
+          attr_accessor :value
+          add_need_initialize_variable("value")
+          alias_method(:taxo_link, :value)
+          alias_method(:taxo_link=, :value=)
+          
+          def have_required_values?
+            @value
+          end
+        end
+      end
+    end
+
+    class RSSBase
+      include TaxonomyTopicModel
+    end
+    
+    class ChannelBase
+      include TaxonomyTopicsModel
+    end
+    
+    class ItemsBase
+      class ItemBase
+        include TaxonomyTopicsModel
+      end
+    end
+
+    makers.each do |maker|
+      maker.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
+        TaxonomyTopicModel.install_taxo_topic(self)
+
+        class Channel
+          TaxonomyTopicsModel.install_taxo_topics(self)
+        end
+
+        class Items
+          class Item
+            TaxonomyTopicsModel.install_taxo_topics(self)
+          end
+        end
+      EOC
+    end
+  end
+end