canvas-lms/db/migrate/20130508214241_add_quiz_statistics_foreign_key.rb

class AddQuizStatisticsForeignKey < ActiveRecord::Migration
  tag :predeploy

  def self.up
    add_foreign_key :quiz_statistics, :quizzes
  end

  def self.down
    remove_foreign_key :quiz_statistics, :quizzes
  end
end