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Adding Hash.from_xml method using Nokogiri
# USAGE: Hash.from_xml:(YOUR_XML_STRING)
require 'nokogiri'
# modified from http://stackoverflow.com/questions/1230741/convert-a-nokogiri-document-to-a-ruby-hash/1231297#1231297
class Hash
class << self
def from_xml(xml_io)
begin
result = Nokogiri::XML(xml_io)
return { result.root.name.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?
result_hash = {}
if node.attributes != {}
result_hash[:attributes] = {}
node.attributes.keys.each do |key|
result_hash[:attributes][node.attributes[key].name.to_sym] = prepare(node.attributes[key].value)
end
end
if node.children.size > 0
node.children.each do |child|
result = xml_node_to_hash(child)
if child.name == "text"
unless child.next_sibling || child.previous_sibling
return prepare(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] << prepare(result)
else
result_hash[child.name.to_sym] = [result_hash[child.name.to_sym]] << prepare(result)
end
else
result_hash[child.name.to_sym] = prepare(result)
end
end
return result_hash
else
return result_hash
end
else
return 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
def to_struct(struct_name)
Struct.new(struct_name,*keys).new(*values)
end
end
@hakanensari

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@hakanensari hakanensari commented Feb 25, 2011

Awesome. I pulled in a modified version here.

@138over

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@138over 138over commented Jul 8, 2012

i had to modify to pick up attributes for elements that contained only text and attributes <foo a="one" b="two">some text</foo>

<                 return prepare(result)

---
>                 if result_hash[:attributes]
>                   result_hash['value'] = prepare(result)
>                   return result_hash
>                 else 
>                   return prepare(result)
>                 end 
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