Contents

module HappyMapper
  class Element < Item

    def find(node, namespace, xpath_options)
      if self.namespace
        # from the class definition
        namespace = self.namespace
      elsif options[:namespace]
        namespace = options[:namespace]
      end

      if options[:single]
        if options[:xpath]
          result = node.xpath(options[:xpath], xpath_options)
        else
          result = node.xpath(xpath(namespace), xpath_options)
        end

        if result
          value = yield(result.first)
          handle_attributes_option(result, value, xpath_options)
          value
        end
      else
        target_path = options[:xpath] ? options[:xpath] : xpath(namespace)
        node.xpath(target_path, xpath_options).collect do |item|
          value = yield(item)
          handle_attributes_option(item, value, xpath_options)
          value
        end
      end
    end

    def handle_attributes_option(result, value, xpath_options)
      if options[:attributes].is_a?(Hash)
        result = result.first unless result.respond_to?(:attribute_nodes)

        return unless result.respond_to?(:attribute_nodes)

        result.attribute_nodes.each do |xml_attribute|
          if attribute_options = options[:attributes][xml_attribute.name.to_sym]
            attribute_value = Attribute.new(xml_attribute.name.to_sym, *attribute_options).from_xml_node(result, namespace, xpath_options)

            result.instance_eval <<-EOV
                def value.#{xml_attribute.name.gsub(/\-/, '_')}
            #{attribute_value.inspect}
                end
            EOV
          end # if attributes_options
        end # attribute_nodes.each
      end # if options[:attributes]
    end # def handle...

  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
nokogiri-happymapper-0.6.0	lib/happymapper/element.rb