<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Migration_Create_activity_log_archive extends CI_Migration
{
 public function up(){if($this->db->table_exists('activity_logs')&&!$this->db->table_exists('activity_logs_archive')){$this->db->query('CREATE TABLE activity_logs_archive LIKE activity_logs');$this->db->query('ALTER TABLE activity_logs_archive ADD archived_at DATETIME NULL, ADD KEY idx_activity_archive_date(archived_at)');}}
 public function down(){throw new RuntimeException('Arsip log tidak dihapus otomatis.');}
}