DataMapper and Sunspot Integration Spike

dm_sunspot.rb

# gem install datamapper dm-sqlite-adapter sunspot sunspot_rails activesupport

require 'rubygems'
require 'datamapper'
require 'sunspot'
require 'sunspot/rails'
require 'active_support/all'

DataMapper::Logger.new($stdout, :debug)
DataMapper.setup(:default, 'sqlite::memory:')

module Sunspot
  module DataMapper
    def self.included(base)
      base.class_eval do
        alias new_record? new?
      end

      base.extend Sunspot::Rails::Searchable::ActsAsMethods

      Sunspot::Adapters::DataAccessor.register(DataAccessor, base)
      Sunspot::Adapters::InstanceAdapter.register(InstanceAdapter, base)

      def base.before_save(*args, &block)
        before(:save, *args, &block)
      end

      def base.after_save(*args, &block)
        after(:save, *args, &block)
      end

      def base.after_destroy(*args, &block)
        after(:destroy, *args, &block)
      end
    end

    class InstanceAdapter < Sunspot::Adapters::InstanceAdapter
      def id
        @instance.id
      end
    end

    class DataAccessor < Sunspot::Adapters::DataAccessor
      def load(id)
        @clazz.get(id)
      end

      def load_all(ids)
        @clazz.all(:id => ids)
      end
    end
  end
end

class User
  include DataMapper::Resource
  include Sunspot::DataMapper

  property :id,   Serial
  property :name, String, :required => true, :unique => true

  searchable do
    string :name
  end
end

DataMapper.auto_migrate!

User.create(:name => 'John Doe')

puts '-' * 80

p User.all
p Sunspot.search(User).results

Thanks for the helpful example code! In case this helps you or anyone else, I've rolled this gist into a higher-level gem here: https://github.com/brainix/data_mapped