kunzmann

module Baz
  def hello
    "baz " + super
  end
end

module Bar
  def hello
    "bar "
  end

kunzmann

class Foo
  include Mongoid::Document

  field :bar, :type => Array
end

# ruby-1.9.2-p0 > Foo.create(:bars => [1,2,3])
#  => #<Foo _id: 4d1128c4fddc0d2146000001, bars: [1, 2, 3]>
# ruby-1.9.2-p0 > Foo.first.bars
#  => [1, 2, 3]