# File lib/abingo/experiment.rb, line 91
  def end_experiment!(final_alternative, conversion_name = nil)
    conversion_name ||= test_name
    ActiveRecord::Base.transaction do
      alternatives.each do |alternative|
        alternative.lookup = "Experiment completed.  #{alternative.id}"
        alternative.save!
      end
      update_attribute(:status, "Finished")
      Abingo.cache.write("Abingo::Experiment::short_circuit(#{test_name})".gsub(" ", "_"), final_alternative)
    end
  end