showing my models value on view in codeigniter - php

Question

im new in codeigniter and get some trouble with my function
here is my model
public function kode_unik(){
$q = $this->db->query("select MAX(RIGHT(id_obat,5)) as code_max from obat");
$code = "";
if($q->num_rows()>0){
foreach($q->result() as $cd){
$tmp = ((int)$cd->code_max)+1;
$hitung = strlen($tmp);
if ($hitung == 1 ){
$a = "0000".$tmp;
} elseif ($hitung == 2) {
$a = "000".$tmp;
}elseif ($hitung == 3) {
$a = "00".$tmp;
}elseif ($hitung == 4) {
$a = "0".$tmp;
}else{
$a = $tmp;
}
$code = sprintf("%s", $a);
}
}else{
$code = "0001";
}
$kodenyami = "E".$code;
return $kodenyami;
}
and then i wanna get the result of my models to show in my view.
here is my controller
public function add_data()
{
$this->load->helper( array('fungsidate', 'rupiah', 'url') );
$this->load->model('obat');
$this->load->database();
$data['a'] = $this->obat->tampil_data();
$data['b'] = $this->obat->kode_unik();
$componen = array(
"header" => $this->load->view("admin/header", array(), true),
"sidebar" => $this->load->view("admin/sidebar", array(), true),
"content" => $this->load->view("admin/add_obat", array("data" => $data), true)
);
$this->load->view('admin/index', $componen);
}
and my view goes here.
<i class="fa fa-medkit fa-5x"></i></div>
<div class="col-xs-9 text-right">
line20-> <div class="huge"><?php echo $b; ?></div>
<div>ID Obat</div>
the code give me an errors Message: Undefined variable: b
just don't know how to put the value of my models $kode_unik into my view ..
thanks

Answer 1

$data is already an array. Maybe like this :
"content" => $this->load->view("admin/add_obat", $data, TRUE)
CodeIgniter will extract the keys in $data so you will be able to use them in your view as $b
BTW instead of passing array() as a parameter of the load->view you can use NULL
P.S If you set the last parameter to TRUE, you will return the populated content of that view as a String (HTML in that case)
Here is something to start with :
public function __construct() {
parent::construct();
$this->load->helper(‘array(‘fungsidate’, ‘rupiah’, ‘url’);
$this->load->model(‘obat’);
$this->load->database(); // Should be already loaded depending on your config
}
public function add_data() {
// Set the data
$data[‘a’] = $this->obat->tampil_data();
$data[‘b’] = $this->obat->kodeunik();
// Load the views
$componen = array(
‘header’ => $this->load->view(‘admin/header’, NULL, TRUE);
‘sidebar’ => $this->load->view(‘admin/sidebar’, NULL, TRUE);
‘content’ => $this->load->view(‘admin/add_obat', $data, TRUE);
);
$this->load->view(‘admin/index’ ,$componen);
}
From what I understand about your code, in your templates you will need to echo the array keys
in admin/header you will echo $header;
in admin/sidebar you will echo $sidebar;
in admin/add_obat you will need to echo $content
and then you admin/index should be populated. I won’t do that if I were you to be honest I would probably load each template as is instead of outputting them as HTML string inside the final index. I don’t know exactly how you did your structure so it’s kinda hard for me to guess well. But in my case I would have use something like this instead of the componen array
public function add_data() {
// Set the data
$data[‘a’] = $this->obat->tampil_data();
$data[‘b’] = $this->obat->kodeunik();
// Load the views
$this->load->view(‘admin/header’);
$this->load->view(‘admin/sidebar’);
$this->load->view(‘admin/add_obat, $data); // This should be the body template of your page
$this->load->view(‘admin/footer’); // I guess you have a footer template
}
I hope this will help you!