class Rufus::Scheduler::OneTimeJob

def determine_id
  [
    self.class.name.split(':').last.downcase[0..-4],
    @scheduled_at.to_f,
    @next_time.to_f,
    (self.object_id < 0 ? 'm' : '') + self.object_id.to_s
  ].map(&:to_s).join('_')
end

def occurrences(time0, time1)
  (time >= time0 && time <= time1) ? [ time ] : []
end

def past?
  @next_time &&
  @next_time < Time.now - @scheduler.frequency
end

def set_next_time(trigger_time, is_post=false, now=nil)
  @next_time = is_post ? nil : false
end