ActiveRecord::Serialization class method from_xml handles arrays and singleton XML instances

  module ActiveRecord::Serialization
    def self.from_xml(xml)
      the_class = Hash.from_xml(xml).keys.first.singularize.camelize.constantize # singularize does nothing if already singular
      array_or_hash = Hash.from_xml(xml).values.first
      array_or_hash.class == Array ? array_or_hash.map { |hash| the_class.new( hash ) } : the_class.new( array_or_hash )
    end
  end