CodeIgniter not loading model

Question

In my controller (controllers/user.php), I have:

class User extends CI_Controller 
{
    public function index() 
    {       
         $this->load->model('user_model')or die("error");  
    }
}

In my model (models/user_model.php), I have

class User_model extends CI_Model
{
    public function __construct()
    {
        parent::__construct();
        $this->load->database();
        $this->load->helper('common');
    }
}

If I remove the

or die("error");

from the load statement, I get a 500 internal server error.

I checked config.php and here's some info

$config['base_url'] = ''; 
$config['index_page'] = '';
$config['uri_protocol'] = 'AUTO';

I have also edited the .htaccess file to remove the "index.php" from the URL to make it cleaner.

RewriteEngine On
RewriteCond $1 !^(index.php|images|captcha|css|js|robots.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L,QSA]

narrow it down - remove the $this->load->model('user_model')or die("error"); and put echo 'a'; exit; If it gives you 'a' then your problem is related to the model. The next thing you should do if check your application/config/database.php for configuration. You can exit after $this->load->database(); (before loading the helper) to see if it is the database connection — galchen
– galchen, Commented Jul 4, 2013 at 23:41
Turn error reporting on, you shouldn't develop in an environment that shows 500 error pages... — Ben
– Ben, Commented Jul 4, 2013 at 23:44

Wayne Tun Myint · Accepted Answer · 2013-07-05 05:11:13Z

3

It is said to be a best practice to load models, libraries in __construct (constructor)

class User extends CI_Controller 
{
    public function __construct() 
    {       
         parent:: __construct();
         $this->load->model('user_model');  
    }

}

Please also try changing Controller name 'User' to 'Users' (not wrong but try it if not working). Naming conflict may be.

answered Jul 5, 2013 at 5:11

Wayne Tun Myint

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Comments

Thanh Nguyen · Accepted Answer · 2013-07-05 06:04:02Z

0

class User extends CI_Controller 
{
    public function __construct()
    {
        parent::__construct();
        $this->load->database();
        $this->load->helper('common');
        $this->load->model('user_model');
    }    

    public function index() 
    {       

    }
}

answered Jul 5, 2013 at 6:04

Thanh Nguyen

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Comments

Nil'z · Accepted Answer · 2013-07-05 07:22:37Z

0

Dont use the contruct method in the model instead follow this rule:

# in the User controller
class User extends CI_Controller{
    public function __construct(){
        parent::__construct();
        $this->load->database();
        $this->load->helper('common');
        $this->load->model('user_model');
    }

    public function index()
    {       
         //$this->load->model('user_model')or die("error");
         #now you can use the user_model here 
    }
}

If you need to load the model only for a specific function then load the model in that function only instead of the constructor. Loading the model in the constructor makes the model functions available to all the controller function.

answered Jul 5, 2013 at 7:22

Nil'z

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Comments

Pattle · Accepted Answer · 2013-07-05 13:30:38Z

0

It is also worth noting that when you load a model it doesn't automatically connect to the database but if you pass TRUE as the third parameter then it will

class User extends CI_Controller 
{
    public function __construct() 
    {       
         parent:: __construct();
         $this->load->model('user_model', '', TRUE);  
    }
}

if you know you are going to be loading a model a lot you can also autoload it in the application/config/autoload.php file

answered Jul 5, 2013 at 13:30

Pattle

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Comments

Wayne Johnson · Accepted Answer · 2016-08-03 10:31:03Z

-1

check your filenames. Are they extension .php?? I had this problem myself and it turned out that I was forgetting to add the .php extension

answered Aug 3, 2016 at 10:31

Wayne Johnson

1

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