元ネタは https://gist.github.com/2986414/32a6c6cb9a9cc99e96f4cd9026513d0644ba0511 ここ。
2年前のものだったのでNokogiri 1.5.0で動くように改修。Hash classを拡張。
xml2hash.rb
# USAGE: Hash.from_libxml(YOUR_XML_STRING)
# http://movesonrails.com/articles/2008/02/25/libxml-for-active-resource-2-0
require 'nokogiri'
class Hash
class << self
def from_libxml(xml)
begin
result = Nokogiri::XML(xml)
return { result.root.name.to_s.to_sym => xml_node_to_hash(result.root)}
rescue Exception => e
# raise your custom exception here
end
end
def xml_node_to_hash(node)
# If we are at the root of the document, start the hash
if node.element?
if node.children.present?
result_hash = {}
node.children.each do |child|
result = xml_node_to_hash(child)
if child.name == "text"
if !child.next_element.present? and !child.previous_element.present?
return result
end
elsif result_hash[child.name.to_sym]
if result_hash[child.name.to_sym].is_a?(Object::Array)
result_hash[child.name.to_sym] << result
else
result_hash[child.name.to_sym] = [result_hash[child.name.to_sym]] << result
end
else
result_hash[child.name.to_sym] = result
end
end
return result_hash
elsif node.attributes.present?
# TODO
else
return nil
end
else
return node.content.to_s
end
end
end
end
attributesが入り組んでいると取れないのだけど簡単な構造ならHash化できる