Refactoring question

day.rb

  def has_a_thing_at(time)
    any_events_at?(time) || any_interview_slots_at?(time) || any_free_slots_at?(time)
  end

  def any_events_at?(time)
    events.where("start_time <= ? and end_time > ?", time, time).any?
  end

  def any_interview_slots_at?(time)
    interview_slots.where("start_time <= ? and end_time > ?", time, time).any?
  end

  def any_free_slots_at?(time)
    free_slots.where("start_time <= ? and end_time > ?", time, time).any?
  end

########################################################################

  def has_a_thing_at(time)
    event_type_at?(events, time) || event_type_at?(interview_slots, time) || event_type_at?(free_slots, time)
  end
  
  def event_type_at?(event_type, time)
    event_type.where("start_time <= ? and end_time > ?", time, time).any?
  end