GET or POST value from controller to model in codeigniter

Question

Is there any way to pass value from one controller to model as GET or POST

I have 1 controller V1 and 1 model Vmodel

class V1 extends CI_Controller {        
    function __construct()
    {
        parent::__construct();
        $this->load->model('Vmodel','',TRUE);
    }
    /* index action */
    public function index()
    {
      $user='abcd';
      $details  = $this->Vmodel->login();
    }       
}       

model

class V1Modelnew extends CI_Model{
public function __construct() {

    }

          public function login()
          {
            //here, I need to get the user variable as post
            echo $_POST['user'];
          }
}

I need to get the value 'abcd' as POST in model. Any method to do this?

Answer 1

Errors in your code

1. You load model as $this->load->model('Vmodel' But you define it has V1Modelnew
2. You are not passing $user value to your model function
3. There is no value associated with $_POST['user']

---

In controller

class V1 extends CI_Controller {        
    function __construct()
    {
        parent::__construct();
        $this->load->model('V1Modelnew'); # Changed
    }

    public function index()
    {
      $user='abcd';
      $details  = $this->V1Modelnew->login($user); # Changed
    }       
}

In Model

class V1Modelnew extends CI_Model{

    public function __construct() 
    {

    }

    public function login($user) # Changed
    {
        echo $user; # Changed
    }
}

Answer 2

There is an architectural problem here. You don't want your model accessing values in the $_POST or $_GET. This couples your model layer to the HTTP layer of your application.

Instead, you want to pass the necessary values into your model as function arguments.

Your controller:

$details = $this->Vmodel->login('abcd', $_POST['password']);

And your model:

public function login($username, $password) {
    // return $details
}

Answer 3

Try in this way

class V1 extends CI_Controller {        
    function __construct()
    {
        parent::__construct();
        $this->load->model('Vmodel','',TRUE);
    }
    /* index action */
    public function index()
    {
      $user=$this->input->post('user');
      $details  = $this->Vmodel->login($user);
    }       
}

Model:

class Vmodel extends CI_Model{ //use Vmodel NOT V1Modelnew 
public function __construct() {

    }

          public function login($user)
          {

            echo $user;
          }
}

If you want to user post and get you need to do it in Controller in this way:

$value = $this->input->post('value_name'); // for Post
$value = $this->input->get('value_name'); // for GET

For more, read documentation

Answer 4

Controller

class V1 extends CI_Controller {        
    function __construct()
    {
        parent::__construct();
        $this->load->model('Vmodel','',TRUE);
    }
    /* index action */
    public function index()
    {
      $user='abcd';
      $details  = $this->Vmodel->login($_POST);
    }       
}       

Model

class V1Modelnew extends CI_Model{
public function __construct() {

    }

          public function login($data='')
          {
            //here, I need to get the user variable as post
            echo $_POST['user'];
          }
}