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Adding Hash.from_xml method using Nokogiri
# USAGE: Hash.from_xml:(YOUR_XML_STRING)
#
# - fixes handling of <text> elements
# - prepends namespaces on keys where used including both elements & attributes
# - uses strings instead of symbols to prevent consumption of the symbol table
require 'nokogiri'
# modified from http://stackoverflow.com/questions/1230741/convert-a-nokogiri-document-to-a-ruby-hash/1231297#1231297
class Nokogiri::XML::Node
def namespaced_name
(namespace ? "#{namespace.prefix}:" : "") + name
end
end
class Hash
class << self
def from_xml(xml_io)
begin
result = Nokogiri::XML(xml_io)
return { result.root.name => 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?
result_hash = {}
result_hash['attributes'] = {} unless node.attributes.empty?
node.attributes.each do |key, attr|
result_hash['attributes'][attr.namespaced_name] = prepare(attr.value)
end
node.children.each do |child|
result = xml_node_to_hash(child)
if child.is_a? Nokogiri::XML::Text
unless child.next_sibling || child.previous_sibling
return prepare(result)
end
elsif result_hash[child_name = child.namespaced_name]
result_hash[child_name] = [result_hash[child_name]] unless result_hash[child_name].is_a?(Object::Array)
result_hash[child_name] << prepare(result)
else
result_hash[child_name] = prepare(result)
end
end
result_hash
else
prepare(node.content.to_s)
end
end
def prepare(data)
(data.class == String && data.to_i.to_s == data) ? data.to_i : data
end
end
end
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