rows from db in header, which set to display in all page - php

Question

In CodeIgniter I'm try to made header with code from DB, my controller code:
public function index()
{
$this->load->model('main_model');
$data['result'] = $this->main_model->get_tipsters();
$this->load->view('template/header_view',$data);
}
And header_view:
<?php foreach($result->result() as $row): ?>
<div id="tipster"><img src="<?=$row->photo;?>" /><br /><?=$row->name;?></div>
<?php endforeach; ?>
Header work's only It self view file, but not In others pages.
I Including header like this in controllers:
$this->load->view('template/header_view');
$this->load->view("/bets/index",$data);
$this->load->view('template/footer_view');
Getting this error
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: result
Filename: template/header_view.php
Line Number: 14
Fatal error: Call to a member function result() on a non-object in /home/user/domains/test.com/public_html/application/views/template/header_view.php on line 14
Line 14 is foreach, I have copied early.

Answer 1

Since your header view file is always expecting $result, you'll need to provide it for all your controller methods:
$this->load->model('main_model');
$data['result'] = $this->main_model->get_tipsters();
$data['main'] = $this->main_model->get_main_data(); //example
$this->load->view('template/header_view',$data);
$this->load->view("bets/index",$data);
$this->load->view('template/footer_view');
This can become cumbersome, so consider creating a MY_Controller file that extends CI_Controller - more about that here.

Answer 2

You can make a function in your Common_model
for fecthing result on your header file.
and directly get result from that function by calling it in a view file.
common_model.php
function your_function()
{
// code for fetching data for header
/// return your result here
}
call directly this function in a view file as
$rs = $this->Common_model->your_function();
Note: common_model is load by default .if disable then you need to load model in a view file.

Answer 3

Best way to load CI object on view element file(header_view) and load and call model method with CI object
$CI = & get_instance()
$CI->load->model('main_model');
$result = $CI->main_model->get_tipsters();
<?php foreach($result->result() as $row): ?>
<div id="tipster"><img src="<?=$row->photo;?>" /><br /><?=$row->name;?></div>
<?php endforeach; ?>
and remove code from controller