Simple class for running an ActiveRecord query in a separate thread.

gistfile1.rb

class ConcurrentQuery < BasicObject

  def initialize(&block)
    @query = ::Thread.new do
      result = begin
                 block.call
               ensure
                 ::ActiveRecord::Base.connection_pool.release_connection
               end
      result
    end
  end

  def method_missing(method_name, *args, &block)
    @query.value.send(method_name, *args, &block)
  end
end