{{indexmenu_n>10}}

====== View submenu conditionally ======



> I put together a combined horizontal and vertical navigation, the vertical (sub) menu will be displayed only when actually sub-menu items are available //(this is for example the case on the product pages, but not at home)//. 

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Forum: [[http://forum.phpwcms.org/viewtopic.php?p=90950#p90950|Untermenü nur bedingt anzeigen]] \\
Autor: Oliver Georgi 2007/08/26
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You can not automate everything within a CMS!

Some menu solution can be implemented only by custom logic.

But it's important - if possible do **NOT** use inline PHP. In your case it goes as follows:

In the template, add to the area where the vertical menu is to appear

[**Note:** All the "numbers" are levels of structure IDs]

Create a new file **navi_left_right.php** in **%%template/inc_script/frontend_render/..%%** and fill in the following code:

<code>{VERTMENU}</code>

<code php|h navi_left_right.php |h>
<?php
// ----------------------------------------------------------------
// obligate check for phpwcms constants
if (!defined('PHPWCMS_ROOT')) {
   die("You Cannot Access This Script Directly, Have a Nice Day."); }
// ----------------------------------------------------------------

// Simple "View submenu conditionally"
// Forum: http://forum.phpwcms.org/viewtopic.php?p=90950#p90950
// Autor: Oliver Georgi 2007/08/26
// ----------------------------------------------------------------


$_vertmenu = '';

if(isset($LEVEL_ID[1])) {

  $_vertmenu = trim(   buildCascadingMenu( 'F,' . $LEVEL_ID[1] . ',' )   );
  // this is exactly the same as {NAV_LIST_UL: F,start_level_id, }
  // but built with php function behind
  if( $_vertmenu ) {
   
    $_vertmenu = '<div class="menu">' . $_vertmenu . '</div>';

  } else {
    $_vertmenu = '';
  }

}

$content['all'] = str_replace( '{VERTMENU}', $_vertmenu, $content['all'] );

?>
</code>

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Use **{VERTMENU}**  on the site in the template where you want to appear the result.... 

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