require "rss/1.0" require "rss/dublincore" module RSS # The prefix for the Taxonomy XML namespace. TAXO_PREFIX = "taxo" # The URI for the specification of the Taxonomy XML namespace. TAXO_URI = "http://purl.org/rss/1.0/modules/taxonomy/" RDF.install_ns(TAXO_PREFIX, TAXO_URI) # The listing of all the taxonomy elements, with the appropriate namespace. TAXO_ELEMENTS = [] %w(link).each do |name| full_name = "#{TAXO_PREFIX}_#{name}" BaseListener.install_get_text_element(TAXO_URI, name, full_name) TAXO_ELEMENTS << "#{TAXO_PREFIX}_#{name}" end %w(topic topics).each do |name| class_name = Utils.to_class_name(name) BaseListener.install_class_name(TAXO_URI, name, "Taxonomy#{class_name}") TAXO_ELEMENTS << "#{TAXO_PREFIX}_#{name}" end module TaxonomyTopicsModel extend BaseModel def self.append_features(klass) super klass.install_must_call_validator(TAXO_PREFIX, TAXO_URI) %w(topics).each do |name| klass.install_have_child_element(name, TAXO_URI, "?", "#{TAXO_PREFIX}_#{name}") end end class TaxonomyTopics < Element include RSS10 Bag = ::RSS::RDF::Bag class << self def required_prefix TAXO_PREFIX end def required_uri TAXO_URI end end @tag_name = "topics" install_have_child_element("Bag", RDF::URI, nil) install_must_call_validator('rdf', RDF::URI) def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.Bag = args[0] end self.Bag ||= Bag.new end def full_name tag_name_with_prefix(TAXO_PREFIX) end def maker_target(target) target.taxo_topics end def resources if @Bag @Bag.lis.collect do |li| li.resource end else [] end end end end module TaxonomyTopicModel extend BaseModel def self.append_features(klass) super var_name = "#{TAXO_PREFIX}_topic" klass.install_have_children_element("topic", TAXO_URI, "*", var_name) end class TaxonomyTopic < Element include RSS10 include DublinCoreModel include TaxonomyTopicsModel class << self def required_prefix TAXO_PREFIX end def required_uri TAXO_URI end end @tag_name = "topic" install_get_attribute("about", ::RSS::RDF::URI, true, nil, nil, "#{RDF::PREFIX}:about") install_text_element("link", TAXO_URI, "?", "#{TAXO_PREFIX}_link") def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.about = args[0] end end def full_name tag_name_with_prefix(TAXO_PREFIX) end def maker_target(target) target.new_taxo_topic end end end class RDF include TaxonomyTopicModel class Channel include TaxonomyTopicsModel end class Item; include TaxonomyTopicsModel; end end end