class DefineExcellentCourse < ActiveRecord::Migration
  def up
    arr = [302,192,370,394,183,361,117,218,379,178,418,203,342,403,225]
    for i in 0..arr.length-1
      begin
      puts arr[i]
      course = Course.find(arr[i])
      course.update_attribute(:is_excellent, true)
      rescue
        logger.error("Course is not found!")
      end
    end
  end

  def down
  end
end