# File lib/mongo_mapper/plugins/serialization.rb, line 20
      def serializable_hash(options = nil)
        options ||= {}

        options[:only]   = Array.wrap(options[:only]).map { |k| k.to_s }
        options[:except] = Array.wrap(options[:except]).map { |k| k.to_s }

        attribute_names = serializable_attributes

        if options[:only].any?
          attribute_names &= options[:only]
        elsif options[:except].any?
          attribute_names -= options[:except]
        end

        attribute_names += Array.wrap(options[:methods]).map { |m| m.to_s }.select do |method|
          respond_to?(method)
        end

        hash = attribute_names.sort.inject({}) do |hash, name|
          value = send(name)
          hash[name] = if value.is_a?(Array)
            value.map {|v| v.respond_to?(:serializable_hash) ? v.serializable_hash : v }
          elsif value.respond_to?(:serializable_hash)
            value.serializable_hash
          else
            value
          end
          hash
        end

        serializable_add_includes(options) do |association, records, opts|
          hash[association.to_s] = records.is_a?(Array) ?
            records.map { |r| r.serializable_hash(opts) } :
            records.serializable_hash(opts)
        end

        hash
      end