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CodeIgniter PHP Model Access “Unable to locate the model you have specified”

Posted by: admin November 29, 2017 Leave a comment

Questions:

I have been trying to load some models for this website I am building. However, for an unknown reason, it will bring the following error :

An Error Was Encountered

Unable to locate the model you have specified: logon_model

Now , I have done my research. The problem would be that IC processes file names in lowercase. However, both my file and the file calling is in lower case, as shown here :

echo "VALIDATING";
            // Validation passed. Off we go to account info verification from AA's database. God help us all.
            $this->load->model('logon_model');
            echo "FOUND MODEL";
            $res = $this->logon_model->verify_user($this->input->post('username'),$this->input->post('password'));
            echo $this->input->post('username');
            echo $this->input->post('password');

The execution does not reach “FOUND MODEL”, thus stops on the model loading. I have tried to use:

 $this->load->model(site_url('logon_model'));

With no results. Need to mention the model file is correctly placed in the right model folder ?

How can I fix this ?

EDIT : Header for the model file :

class Logon_model extends CI_Model {

....
Answers:

When creating models, you need to place the file in application/models/ and name the file in all lowercase – like logon_model.php

The logon_model.php should contain the following:

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


class Logon_model extends CI_Model
{
    public function __construct()
    {
        parent::__construct();
    }
    ...

Now, what you can do, to test if your application model is reachable, is to try opening it in the browser – like so:
http://example.org/application/models/logon_model.php

If you see the text No direct script access allowed it means you hit the right file (if you are in doubt, try writing something else in the exit() in the first line).

Secondly, for loading the model in your controllers, you should be able to do like this:

public function index()
{

    $this->load->model('logon_model');
    ...

}

If everything above checks out as expected I would begin looking at file permissions and/or possibly symlinks if you are using any.

Questions:
Answers:

I use codeigniter 3+. I had the same problem and in my case I changed model file name starting from uppser case.

Logon_model.php

Questions:
Answers:

Here is what a model should look like: Make sure yours is like this.

    <?php
    class Logon_model extends CI_Model {

    function __construct()
    {
         parent::__construct();
    }

    function myFunc()
    {
      // do something
    }
}

note the upper-case class name.

To load it use:

$this->load->model('logon_model');

note all lower case.

Questions:
Answers:

I resolve this with this way:

  1. I rename file do Page_model.php
  2. Class name to Page_model extends…
  3. I call on autoload: $autoload['model'] = array('Page_model'=>'page');

Works fine.. I hope help.

Questions:
Answers:

In CodeIgniter 3.0-dev (get it from github) this is not working because the CI is search as first letter uppercase.

You can find the code on system/core/Loader.php line 282 or bellow:

$model = ucfirst(strtolower($model));

foreach ($this->_ci_model_paths as $mod_path)
{
    if ( ! file_exists($mod_path.'models/'.$path.$model.'.php'))
    {
        continue;
    }

    require_once($mod_path.'models/'.$path.$model.'.php');

    $CI->$name = new $model();
    $this->_ci_models[] = $name;
    return $this;
}

This mean that we need to create the file with the following name on application/models/Logon_mode.php

Questions:
Answers:

Models must be named and called with the first letter of the model name capitalized and the rest in lowercase.

For example: $this->load->model('Logon_model');

and:

class Logon_model extends CI_Model {
...

But you are correct about the file name.

Questions:
Answers:

First letter of file name and class name must be in Uppercase.

Your model class will be

class Logon_model extends CI_Model

and the file name will be Logon_model.php

Access it from your contoller like

$this->load->model(‘Logon_model’);

Questions:
Answers:

Adding to @jakentus answer, below is what worked for me:

  1. Change the file name in the models package to Logon_model.php (First letter upper case as @jakentus correctly said)

  2. Change the class name as same as file name i.e.

    class Logon_model extends CI_Model

  3. Change the name in the load method too as

    $this->load->model('Logon_model');

Hope this helps. Happy coding. 🙂

Questions:
Answers:

I experienced the same problem, but I fixed it by altering my application/config/routes.php file.

I made some restructuring to my controller directories and forget to effect it on the routes file.

Earlier:

$route['application/apply'] = 'ex/application/account/create';

and now:

$route['application/apply'] = 'application/account/create';

Questions:
Answers:

Changing the name of model name starting with Uppercase works.
Example : Login_model.php instead of login_model.php

Questions:
Answers:

you must change your model name first letter capital.
in localhost small letter work properly but online this not work. for exa:

common_model.php

replaced it to

Common_model.php

Questions:
Answers:

Just adding my problem i had:

$this->load->model("planning/plan_model.php");

and the .php shouldnt be there, so it should have been:

$this->load->model("planning/plan_model");

hope this helps someone