How to show titles of child pages?

[gestern]

There is a structure of pages:

HOME
+-- Careers
      +-- Job Position 1
      +-- Job Position 2
      +-- ...
+-- About...

I just want to show inside of "Careers" a list of child pages (Job Position 1, ...2.. 3), for which some custom field (If I understood right the purpose of "Page fields" inside of Pages|Content) would be equal to 1.

<?php foreach($pages as $page): ?>
  <li class="<?php echo $page['is_active'] ? 'active' : ''; ?>">
    <?php echo HTML::anchor($page['uri'], $page['title']); ?>
  </li>
<?php endforeach; ?>

I do that through Layout. I've filled up a layout for "Careers" page with code above. But for some reasons I'm faced with "500 - Internal Server Error - Invalid argument supplied for foreach()".

[butschster]

You can create widget type "Page menu" and select checkbox "Match All Pages within Given Deepness". Then place widget on site pages.

Simple widget template

<div class="navbar">
    <?php echo recurse_page_menu($pages); ?>
</div>

<?php function recurse_page_menu($pages)
{
    $return = '<ul class="nav">';

    foreach($pages as $p)
    {
        $return .= '<li>';
        $return .= HTML::anchor($p['url'], $p['title'], array(
            'class' =>  $p['is_active'] ? 'current' : ''
        ));

        if (!empty($p['widget']) AND $p['widget'] instanceof Model_Widget_Decorator)
        {
            $return .= $p['widget']->render(array('return' => TRUE));
        }

        if (!empty($p['childs']))
        {
            $return .= recurse_page_menu($p['childs']);
        }

        $return .= '</li>';
    }

    $return .= '</ul>';

    return $return;
}

[gestern]

Still not working with "ErrorException [ 2 ]: Invalid argument supplied for foreach() ~ DOCROOT/layouts/careers.php [ 2 ]":

EMERGENCY: ErrorException [ 2 ]: Invalid argument supplied for foreach() ~ DOCROOT/layouts/careers.php [ 2 ] in /var/www/clients/client0/web5/web/layouts/careers.php:2
DEBUG: #0 /var/www/clients/client0/web5/web/layouts/careers.php(2): Kohana_Core::error_handler(2, 'Invalid argumen...', '/var/www/client...', 2, Array)
#1 /var/www/clients/client0/web5/web/cms/system/classes/kohana/view.php(62): include('/var/www/client...')
#2 /var/www/clients/client0/web5/web/cms/system/classes/kohana/view.php(359): Kohana_View::capture('/var/www/client...', Array)
#3 /var/www/clients/client0/web5/web/cms/system/classes/kohana/view.php(236): Kohana_View->render()
#4 /var/www/clients/client0/web5/web/cms/modules/pages/classes/kodicms/controller/front.php(110): Kohana_View->__toString()
#5 /var/www/clients/client0/web5/web/cms/modules/pages/classes/kodicms/controller/front.php(45): KodiCMS_Controller_Front->_render(Object(Model_Page_Front))
#6 /var/www/clients/client0/web5/web/cms/system/classes/kohana/controller.php(84): KodiCMS_Controller_Front->action_index()
#7 [internal function]: Kohana_Controller->execute()
#8 /var/www/clients/client0/web5/web/cms/system/classes/kohana/request/client/internal.php(97): ReflectionMethod->invoke(Object(Controller_Front))
#9 /var/www/clients/client0/web5/web/cms/system/classes/kohana/request/client.php(114): Kohana_Request_Client_Internal->execute_request(Object(Request), Object(Response))
#10 /var/www/clients/client0/web5/web/cms/system/classes/kohana/request.php(997): Kohana_Request_Client->execute(Object(Request))
#11 /var/www/clients/client0/web5/web/index.php(165): Kohana_Request->execute()
#12 {main} in /var/www/clients/client0/web5/web/layouts/careers.php:2

[gestern]

Something totally wrong with cashes of Layouts<-->Pages<-->Snippets. The layout render doesn't see anything which have already changed in snippet.

[butschster]

@gestern layout don't have parameter $pages. If you want render pages menu, you should create widget with type page menu, set snippet (template) for this widget and in template place your code.

After then you should place widget on pages to block