JezK
Edit File: trackback.rb
require 'rss/1.0' require 'rss/2.0' module RSS TRACKBACK_PREFIX = 'trackback' TRACKBACK_URI = 'http://madskills.com/public/xml/rss/module/trackback/' RDF.install_ns(TRACKBACK_PREFIX, TRACKBACK_URI) Rss.install_ns(TRACKBACK_PREFIX, TRACKBACK_URI) module TrackBackUtils private def trackback_validate(ignore_unknown_element, tags, uri) return if tags.nil? if tags.find {|tag| tag == "about"} and !tags.find {|tag| tag == "ping"} raise MissingTagError.new("#{TRACKBACK_PREFIX}:ping", tag_name) end end end module BaseTrackBackModel ELEMENTS = %w(ping about) def append_features(klass) super unless klass.class == Module klass.module_eval {include TrackBackUtils} klass.install_must_call_validator(TRACKBACK_PREFIX, TRACKBACK_URI) %w(ping).each do |name| var_name = "#{TRACKBACK_PREFIX}_#{name}" klass_name = "TrackBack#{Utils.to_class_name(name)}" klass.install_have_child_element(name, TRACKBACK_URI, "?", var_name) klass.module_eval(<<-EOC, __FILE__, __LINE__) remove_method :#{var_name} def #{var_name} @#{var_name} and @#{var_name}.value end remove_method :#{var_name}= def #{var_name}=(value) @#{var_name} = Utils.new_with_value_if_need(#{klass_name}, value) end EOC end [%w(about s)].each do |name, postfix| var_name = "#{TRACKBACK_PREFIX}_#{name}" klass_name = "TrackBack#{Utils.to_class_name(name)}" klass.install_have_children_element(name, TRACKBACK_URI, "*", var_name) klass.module_eval(<<-EOC, __FILE__, __LINE__) remove_method :#{var_name} def #{var_name}(*args) if args.empty? @#{var_name}.first and @#{var_name}.first.value else ret = @#{var_name}.__send__("[]", *args) if ret.is_a?(Array) ret.collect {|x| x.value} else ret.value end end end remove_method :#{var_name}= remove_method :set_#{var_name} def #{var_name}=(*args) if args.size == 1 item = Utils.new_with_value_if_need(#{klass_name}, args[0]) @#{var_name}.push(item) else new_val = args.last if new_val.is_a?(Array) new_val = new_value.collect do |val| Utils.new_with_value_if_need(#{klass_name}, val) end else new_val = Utils.new_with_value_if_need(#{klass_name}, new_val) end @#{var_name}.__send__("[]=", *(args[0..-2] + [new_val])) end end alias set_#{var_name} #{var_name}= EOC end end end end module TrackBackModel10 extend BaseModel extend BaseTrackBackModel class TrackBackPing < Element include RSS10 class << self def required_prefix TRACKBACK_PREFIX end def required_uri TRACKBACK_URI end end @tag_name = "ping" [ ["resource", ::RSS::RDF::URI, true] ].each do |name, uri, required| install_get_attribute(name, uri, required, nil, nil, "#{::RSS::RDF::PREFIX}:#{name}") end alias_method(:value, :resource) alias_method(:value=, :resource=) def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.resource = args[0] end end def full_name tag_name_with_prefix(TRACKBACK_PREFIX) end end class TrackBackAbout < Element include RSS10 class << self def required_prefix TRACKBACK_PREFIX end def required_uri TRACKBACK_URI end end @tag_name = "about" [ ["resource", ::RSS::RDF::URI, true] ].each do |name, uri, required| install_get_attribute(name, uri, required, nil, nil, "#{::RSS::RDF::PREFIX}:#{name}") end alias_method(:value, :resource) alias_method(:value=, :resource=) def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.resource = args[0] end end def full_name tag_name_with_prefix(TRACKBACK_PREFIX) end private def maker_target(abouts) abouts.new_about end def setup_maker_attributes(about) about.resource = self.resource end end end module TrackBackModel20 extend BaseModel extend BaseTrackBackModel class TrackBackPing < Element include RSS09 @tag_name = "ping" content_setup class << self def required_prefix TRACKBACK_PREFIX end def required_uri TRACKBACK_URI end end alias_method(:value, :content) alias_method(:value=, :content=) def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.content = args[0] end end def full_name tag_name_with_prefix(TRACKBACK_PREFIX) end end class TrackBackAbout < Element include RSS09 @tag_name = "about" content_setup class << self def required_prefix TRACKBACK_PREFIX end def required_uri TRACKBACK_URI end end alias_method(:value, :content) alias_method(:value=, :content=) def initialize(*args) if Utils.element_initialize_arguments?(args) super else super() self.content = args[0] end end def full_name tag_name_with_prefix(TRACKBACK_PREFIX) end end end class RDF class Item; include TrackBackModel10; end end class Rss class Channel class Item; include TrackBackModel20; end end end BaseTrackBackModel::ELEMENTS.each do |name| class_name = Utils.to_class_name(name) BaseListener.install_class_name(TRACKBACK_URI, name, "TrackBack#{class_name}") end BaseTrackBackModel::ELEMENTS.collect! {|name| "#{TRACKBACK_PREFIX}_#{name}"} end