dyzulk-apps/application/models/AuthModel.php

<?php
defined('BASEPATH') or exit('No direct script access allowed');

class AuthModel extends CI_Model
{
    public function cekUsername($username) {
        return $this->db->get_where('user', ['username' => $username])->row_array();
    }


    public function getMaxId($table, $field, $prefix) {
        $this->db->select_max($field);
        $this->db->like($field, $prefix, 'after');
        return $this->db->get($table)->row_array()[$field];
    }


    public function updateStatusOnline($user_id) {
        $data = array('status_login' => 'online');
        $this->db->where('id', $user_id);
        $this->db->update('users_account', $data);
    }


    public function updateStatusOffline($user_id) {
        $data = array('status_login' => 'offline');
        $this->db->where('id', $user_id);
        $this->db->update('users_account', $data);
    }
}