通知用户在codeigniter中成功更新

class Notification_model extends CI_Model {
    public function update_notification($notification_id, $data) {
        $this->db->where('id', $notification_id);
        $this->db->update('notifications', $data);
        return $this->db->affected_rows() > 0;
    }
}

class Notification_controller extends CI_Controller {
    public function update($notification_id) {
        // 获取更新通知的数据
        $data = array(
            'status' => 'updated',
            'updated_at' => date('Y-m-d H:i:s')
        );

        // 加载Notification_model模型
        $this->load->model('Notification_model');

        // 调用update_notification()方法更新通知
        if ($this->Notification_model->update_notification($notification_id, $data)) {
            echo '通知更新成功！';
        } else {
            echo '通知更新失败！';
        }
    }
}

$route['notification/update/(:num)'] = 'Notification_controller/update/$1';

<a href="<?php echo site_url('notification/update/1'); ?>">更新通知</a>