Question

I am a newbie with codeigniter and trying to learn crud in codeigniter..
My site controller is :

class Site extends CI_Controller 
{
    function index()
    {
        $data = array();
        if($query = $this->site_model->get_records())
        {
            $data['records'] = $query;
        }   
        $this->load->view('options_view', $data);
    }

And my site_model is :

class Site_model extends CI_Model {
    function __construct(){
      parent::__construct();
    }


    function get_records()
    {
        $query = $this->db->get('data');
        return $query->result();
    }

    function add_record($data) 
    {
        $this->db->insert('data', $data);
        return;
    }

    function update_record($data) 
    {
        $this->db->where('id', 12);
        $this->db->update('data', $data);
    }

    function delete_row()
    {
        $this->db->where('id', $this->uri->segment(3));
        $this->db->delete('data');
    }

}

I made $autoload[‘libraries’] = array(‘database’);
When i try to check the site I get error :

Severity: Notice

Message: Undefined property: Site::$site_model

Filename: controllers/site.php

Line Number: 9

What is wrong with this code?

Answer 1

Load the model:

class Site extends CI_Controller 
{
    //you also need the constructor
    function __construct(){
        parent::__construct();
        $this->load->model('Site_model');
    }
    function index()
    {
        $data = array();
        //now you can use it
        if($query = $this->site_model->get_records())
        {
            $data['records'] = $query;
        }   
        $this->load->view('options_view', $data);
    }