Zend Framework 1.9.9 Manual

Prior to the 1.9 release, the menu helper (Zend_View_Helper_Navigation_Menu) did not render sub menus correctly. When the onlyActiveBranch was TRUE and the option renderParents FALSE, nothing would be rendered if the deepest active page was at a depth lower than the minDepth option.

In simpler words; if minDepth was set to 1 and the active page was at one of the first level pages, nothing would be rendered, as the following example shows.

Consider the following container setup:

 'Home',
        'uri'   => '#'
    ),
    array(
        'label'  => 'Products',
        'uri'    => '#',
        'active' => true,
        'pages'  => array(
            array(
                'label' => 'Server',
                'uri'   => '#'
            ),
            array(
                'label' => 'Studio',
                'uri'   => '#'
            )
        )
    ),
    array(
        'label' => 'Solutions',
        'uri'   => '#'
    )
));

The following code is used in a view script:

navigation()->menu()->renderMenu($container, array(
    'minDepth'         => 1,
    'onlyActiveBranch' => true,
    'renderParents'    => false
)); ?>

Before release 1.9, the code snippet above would output nothing.

Since release 1.9, the _renderDeepestMenu() method in Zend_View_Helper_Navigation_Menu will accept active pages at one level below minDepth, as long as the page has children.

The same code snippet will now output the following:

    

        Server
    
    

        Studio