JezK
Edit File: syndication.rb
require "rss/1.0" module RSS SY_PREFIX = 'sy' SY_URI = "http://purl.org/rss/1.0/modules/syndication/" RDF.install_ns(SY_PREFIX, SY_URI) module SyndicationModel extend BaseModel ELEMENTS = [] def self.append_features(klass) super klass.install_must_call_validator(SY_PREFIX, SY_URI) klass.module_eval do [ ["updatePeriod"], ["updateFrequency", :positive_integer] ].each do |name, type| install_text_element(name, SY_URI, "?", "#{SY_PREFIX}_#{name}", type, "#{SY_PREFIX}:#{name}") end %w(updateBase).each do |name| install_date_element(name, SY_URI, "?", "#{SY_PREFIX}_#{name}", 'w3cdtf', "#{SY_PREFIX}:#{name}") end end klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1) alias_method(:_sy_updatePeriod=, :sy_updatePeriod=) def sy_updatePeriod=(new_value) new_value = new_value.strip validate_sy_updatePeriod(new_value) if @do_validate self._sy_updatePeriod = new_value end EOC end private SY_UPDATEPERIOD_AVAILABLE_VALUES = %w(hourly daily weekly monthly yearly) def validate_sy_updatePeriod(value) unless SY_UPDATEPERIOD_AVAILABLE_VALUES.include?(value) raise NotAvailableValueError.new("updatePeriod", value) end end end class RDF class Channel; include SyndicationModel; end end prefix_size = SY_PREFIX.size + 1 SyndicationModel::ELEMENTS.uniq! SyndicationModel::ELEMENTS.each do |full_name| name = full_name[prefix_size..-1] BaseListener.install_get_text_element(SY_URI, name, full_name) end end