Undefined property when extending CI_Model in CodeIgniter

Question

Possible Duplicate:
Codeigniter Message: Undefined property: stdClass

location: application/core/student_model.php

class Student_model extends CI_Model
{
    private $id;

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

    public function setId($id){
        $this->id = $id;
    }

    public function getId() {
        return $this->id;
    }
}

location: application/controllers/test.php

class Test extends CI_Controller {

    public function __construct()
    {
        parent::__construct();
        $this->load->model('Student_model');
    }

    public function index()
    {
        $student = $this->student_model->setId('1234567');
        echo $student->getId();
    }
}

I am getting the following message/error.

Message: Undefined property: Test::$student_model
Filename: controllers/test.php
Line Number: 13

This line is where I am calling the method setId.

Can anyone see what I am doing wrong?

score 3 · Answer 1 · edited Jan 04 '13 at 10:02

3

Try replacing

$this->student_model->setId('1234567');

with

$this->Student_model->setId('1234567');

Your class is capitalized, so the property should also be capitalized afaik.

edited Jan 04 '13 at 10:02

Suresh Kamrushi

13,699
12
70
84

answered Jan 04 '13 at 10:00

g00glen00b

34,293
11
80
106

score 1 · Answer 2 · answered Jan 04 '13 at 10:03

1

Try

public function __construct()
{
    parent::__construct();
    $this->load->model('Student_model', 's_model');
}

public function index()
{
    $student = $this->s_model->setId('1234567');
    echo $student->getId();
}

answered Jan 04 '13 at 10:03

Alexander Cogneau

1,216
4
11
25

score 0 · Answer 3 · answered Jan 04 '13 at 10:42

what you are doing wrong is :

you are assigning $student to $this->student_model->setId('1234567');
which is a function or 'setter' that does not return anything; and you won't be able to use $student->getId();

what I would do is that

class Test extends CI_Controller {

    public function __construct()
    {
        parent::__construct();
        $this->load->model('student_model', 'student');
    }

    public function index()
    {
        $this->student->setId('1234567');
        echo $this->student->getId();
    }
}

Undefined property when extending CI_Model in CodeIgniter

3 Answers3