Module: Vacuum::HashBuilder

Defined in:
lib/vacuum/hash_builder.rb

Class Method Summary collapse

Class Method Details

.from_xml(xml) ⇒ Hash

Builds a hash from a Nokogiri XML document.

Parameters:

  • xml (Nokogiri::XML::Document) —

    An XML document

Returns:

  • (Hash) 


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# File 'lib/vacuum/hash_builder.rb', line 7

def self.from_xml(xml)
  case xml
  when Nokogiri::XML::Document
    from_xml(xml.root)
  when Nokogiri::XML::Element
    hsh = {}

    xml.attributes.each_pair do |key, attribute|
      hsh[key] = attribute.value
    end

    xml.children.each do |child|
      result = from_xml(child)

      if child.name == 'text'
        if hsh.empty?
          return result
        else
          hsh['__content__'] = result
        end
      elsif hsh[child.name]
        case hsh[child.name]
        when Array
          hsh[child.name] << result
        else
          hsh[child.name] = [hsh[child.name]] << result
        end
      else
        hsh[child.name] = result
      end
    end

    hsh
  else
    xml.content.to_s
  end
end