README.txt

This is a way to use run_later from Merb in a DataMapper model.
It runs the code in the block at some unspecified point in the
future.

I don't like that I copied and pasted run_later from Merb, but
run_later was defined at the controller level and this seemed
like a quick and easy way to do it.

init.rb

# Merb's init.rb
# ...
Merb::BootLoader.before_app_loads do
  # Add dependencies here that must load before the application loads:
  require 'lib/run_later'
end
# ...

run_later.rb

# /lib/run_later.rb 
module DataMapper
  module Resource
    def run_later(&blk)
      Merb::Dispatcher.work_queue << blk
    end
  end
end

the_model.rb

class TheModel
  include DataMapper::Resource

  # ...

  after :create, :create_hook
  def create_hook
    run_later do
      # ...
    end
  end
end