class HappyMapper::Element

Public Instance Methods

find(node, namespace, xpath_options) { |first| ... } click to toggle source
# File lib/happymapper/element.rb, line 3
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 |result|
      value = yield(result)
      handle_attributes_option(result, value, xpath_options)
      value
    end
  end
end
handle_attributes_option(result, value, xpath_options) click to toggle source
# File lib/happymapper/element.rb, line 33
    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