def delete_all_friendships
      friend_ids.clear
      inverse_friend_ids.clear
      pending_friend_ids.clear
      pending_inverse_friend_ids.clear
      blocked_friend_ids.clear
      blocked_inverse_friend_ids.clear
      blocked_pending_friend_ids.clear
      blocked_pending_inverse_friend_ids.clear
      self.save
    end
def delete_all_friendships
      friend_ids.clear
      inverse_friend_ids.clear
      pending_friend_ids.clear
      pending_inverse_friend_ids.clear
      blocked_friend_ids.clear
      blocked_inverse_friend_ids.clear
      blocked_pending_friend_ids.clear
      blocked_pending_inverse_friend_ids.clear
      self.save
    end
deletes all the friendships