How to load a model in another controller using a custom PHP MVC

Question

My application have this folders stucture:

application

library

Model.php

Controller.php

View.php

models

Settings_Model.php

Home_Model.php

controllers

settings.php

home.php

views

settings

index.php

home

index.php

index.php

.htaccess

library/Model.php

 class Database extends PDO{
        public function __construct($DB_TYPE, $DB_HOST, $DB_NAME, $DB_USER, $DB_PASS){
              parent::__construct($DB_TYPE.':host='.$DB_HOST.';dbname='.$DB_NAME, $DB_USER, $DB_PASS);       
        }
  }

library/Controller

 class Controller{

      function __construct(){       
           $this->view = new View();
      }

      public function loadModel($name){
           $path = 'application/models/' . $name . '_model.php';

           if(file_exists($path)){
                require 'application/models/' . $name . '_model.php';
                $modelName = $name . '_Model';
                $this->model = new $modelName();            
           }
      }
 }

library/View

 class View{

      function __construct(){       
           $this->view = new View();
      }

      public function render($name){
           require 'application/views/' . $name . '.php';
      }
 }

In Models folder I created this model called Settings_Model.php : models/Settings_Model.php

 class Settings_Model extends Model{
    public function __construct(){parent::__construct();}

    function settings(){
       $stmt = $this->db->prepare("SELECT * FROM `mv_settings`");
       $stmt->execute();
       $stmt->setFetchMode(PDO::FETCH_OBJ);
       return $stmt->fetch();
    }       
 }

In Controllers folder I have this Controller called settings.php : controllers/settings.php

class Settings extends Controller {

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

    public function index(){    
        $this->view->settings = $this->model->settings();   
        $this->view->render('settings/index');      
    }   
}

And In Views folder I created a folder called settings and inside this folder I created an index.php file: settings/index

and this is how to call the settings method inside settings/index:

$this->settings->fieldName;

So now when we go to Home view, I did the same procedure: - create a Home_Model class and inside this model I created the same settings method:

 class Home_Model extends Model{
    public function __construct(){parent::__construct();}

    function settings(){
       $stmt = $this->db->prepare("SELECT * FROM `mv_settings`");
       $stmt->execute();
       $stmt->setFetchMode(PDO::FETCH_OBJ);
       return $stmt->fetch();
    }       
 }

and then goes to the controllers folder and create Home controller:

class Home extends Controller {

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

    public function index(){    
        $this->view->settings = $this->model->settings();   
        $this->view->render('home/index');      
    }   
}

and then call the settings method inside home/index:

$this->settings->fieldName;

What Im asking is how to avoid not to create the same method settings again and again each time we need to call that method in another view file???

NB: Im still a newbie.

Ashok Maharjan · Accepted Answer · 2015-08-30 10:56:44Z

1

Try like this in your controller

class Settings extends Controller {
   function __construct(){
     parent::__construct();
     $this->load->model('Settings_Model');
   }
   public function index(){    
     $this->view->settings = $this->Settings_Model->settings();   
     $this->view->render('settings/index');      
   }   
}

edited Aug 30, 2015 at 10:56

answered Aug 30, 2015 at 10:50

Ashok Maharjan

1631 silver badge7 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Devstar Over a year ago

Thank you for your reply, but My question is how not recreate the same settings method in every single model file? and how to call the same method in different controllers?

Ashok Maharjan Over a year ago

you can call model in your controller(controller.php) in contructor. then you can use its functions

Ashok Maharjan Over a year ago

In your case, you can call model by in constructor of controller.php $CI =& get_instance(); $CI->load->model('Settings_Model');

Devstar Over a year ago

Sorry but I didn't know what $CI =& get_instance(); means? and how to use it. Kindly give me a clear exemple so that a newbie like me can understand well :)

Ashok Maharjan Over a year ago

you can check the codeigniter userguide. It has example and explanation also. ellislab.com/codeigniter/user-guide/general/…

iWasCloud · Accepted Answer · 2017-06-08 17:30:05Z

0

if you want to access the same settings() function in all models then you should create it in Base model.php.

class Model{


  function settings(){
       $stmt = $this->db->prepare("SELECT * FROM `mv_settings`");
       $stmt->execute();
       $stmt->setFetchMode(PDO::FETCH_OBJ);
       return $stmt->fetch();
    }

  }

then your settings model need to be like

 class Settings_Model extends Model{
    public function __construct(){parent::__construct();}

 }

and your Home_model

 class Home_Model extends Model{
    public function __construct(){parent::__construct();}

 }

Now you can access settings() in all your models extending Model, no need to create it again and again.

answered Jun 8, 2017 at 17:30

iWasCloud

1453 silver badges14 bronze badges

Collectives™ on Stack Overflow

How to load a model in another controller using a custom PHP MVC

2 Answers 2

5 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

5 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related