passing variable to view, kohana 3.3 not working, Undefined variable: - variables

Question

i have a stupid question... why if i pass e variable to view the browser return me
Undefined variable: ? I just clone my first method (for the ads, the same procedure). But with ads work, and with category not work, this is so stupid, why?
i show my little application
my controller:
<?php defined('SYSPATH') or die('No direct script access.');
class Controller_Ads extends Controller_Template {
public $template = 'template';
// function indes Ads
public function action_index()
{
$ads = ORM::factory('ads')->find_all(); // load all object inside ads table
$view = new View('ads/index'); // load the view/ads/index.php
$view->set('ads', $ads); // set 'ads' object to view
$this->template->set('content', $view);
}
// view single ads
public function action_single()
{
$id = $this->request->param('id');
$record = ORM::factory('ads')
->where('id_ads', '=', $id)
->find();
$view = new View('ads/single');
$view->set('ads', $record);
$this->template->set('content', $view);
}
public function action_category()
{
$category = ORM::factory('category')->find_all();
$view = new View('ads/index');
$view->set('category', $category);
$this->template->set('content', $view);
}
} // End Ads
my interest view (ads/index.php)
<?php foreach ($ads as $obj) : ?>
<h3><?php echo HTML::anchor('/ads/single/'.$obj->id_ads, $obj->title_ads); ?></h3>
<p><?php echo $obj->description_ads; ?></p>
<p>Autore: <?php echo $obj->author_ads; ?> || creato il <?php echo $obj->date_ads; ?> || categoria: <?php echo HTML::anchor('#', $obj->category->category_name); ?></p>
<?php endforeach; ?>
<?php foreach ($category as $obj) : ?>
<?php echo $obj->id; ?>
<?php endforeach; ?>
the error in the browser
ErrorException [ Notice ]: Undefined variable: category
why only for category ?? and not for ads?

Answer 1

Only one of action functions gets run,
This means in action_index() the $ads variable is being set but not $category.
And in action_category() the $category variable is being set but not $ads.
If you only expect to use of those variables, you should make another ads/category.php view and use that in the action_category() function, and remove the references to $ads in that view.
Also it seem that you are expecting the action_category() function to be running, based on the error you are seeing, it is actually running action_index(). Check your routes to find out why.