an error occured on file controller (codeigniter) - php

Question

An uncaught Exception was encountered
Type: Error
Message: Call to undefined method Dashboard::cek_login()
Filename: C:\xampp\htdocs\crud_ajax_ci\application\controllers\Dashboard.php
Line Number: 9
Backtrace:
File: C:\xampp\htdocs\crud_ajax_ci\index.php
Line: 315
Function: require_once
Model file :
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Auth_model extends CI_Model{
public function cek_login($username)
{
$hasil = $this->db->where('username', $username)->limit(1)->get('users');
if($hasil->num_rows() > 0){
return $hasil->row();
} else {
return array();
}
}
public function register($table, $data)
{
return $this->db->insert($table, $data);
}
}
Controller file :
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Dashboard extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->cek_login();
}
public function index()
{
$this->load->view('dashboard');
}
}

Answer 1

For accessing model method you have to load model class First then access Model method.
<?php
class Dashboard extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('Auth_model'); // Load Model
$this->Auth_model->cek_login($username); // Load Model Method
}
public function index()
{
$this->load->view('dashboard');
}
}
?>
Note:-
Once loaded Model in Controller, you will access your model methods using an object with the same name as your Model class Name:-
$this->load->model('model_name');
$this->model_name->method();
Check here :-
For Loading Model
https://codeigniter.com/userguide3/general/models.html#loading-a-model