HTML Menu/DBNested - Only want to display tree with 2 levels
| From: | Mark Reynolds | Date: | Tue, 18 Sep 2007 11:10:20 +0000 |
| Subject: | HTML Menu/DBNested - Only want to display tree with 2 levels | ||
| Groups: | php.pear.general | ||
| Request: | Send a blank email to pear-general+get-27948@lists.php.net to get a copy of this message | ||
I have an array which I'm trying to display as a 'Tree' menu via 'HTML
Menu' (example of the actual tree menu below, the array is below that). I've
come across a few problems. Firstly, as you would expect when the 'tree'
menu is displayed it displays three levels. Because I'm using the
DirectTreeRenderer the menu is displayed in a list and I'm trying to find a
way of just displaying 2 levels. Is this something I can limit as part of
HTML menu or is it something I have to put in place when creating the actual
array and if so, how do I do it? I've looked at
HTML_Menu_Renderer::finishLevel() - not sure if I'm along the right lines
there, but whatever it's supposed to do I can't get it to do it. Help
appreciated!
MENU'S HTML STRUCTURE:
<ul>
<li>Menu item 1
<ul>
<li>Menu item 1.1</li>
<li>Menu item 1.2
<ul>
<li>Menu item 1.2.1</li>
<li>Menu item 1.2.3</li>
</ul>
</li>
</ul>
</li>
<li>Menu item 2
<ul>
<li>Menu item 2.1</li>
<li>Menu item 2.2</li>
</ul>
</li>
</ul>
ARRAY
array(
1 => array(
'title' => 'Menu item 1',
'url' => '/item1.php',
'sub' => array(
11 => array('title' => 'Menu item 1.1', 'url'
=>'/item1.1.php'),
12 => array('title' => 'Menu item 1.2', 'url' =>
'/item1.2.php',
'sub' => array(
121 => array('title' => 'Menu item 1.2.1',
'url'
=>'/item1.2.1.php'),
122 => array('title' => 'Menu item 1.2.2',
'url'
=>'/item1.2.2.php')
)
)
)
),
2 => array(
'title' => 'Menu item 2',
'url' => '/item2.php',
'sub' => array(
21 => array('title' => 'Menu item 2.1', 'url'
=>'/item2.1.php'),
22 => array('title' => 'Menu item 2.2', 'url' =>
'/item2.2.php')
)
)
);
SCRIPT TO DISPLAY ARRAY AS TREE:
// Fetch the entire tree into an array
$data = $nestedSet->getAllNodes(true);
// Create the linksforeach ($data as $id =>$node) {
$data[$id]['url'] = $_SERVER['PHP_SELF'].'?nodeID=' .
$node['id'] .
'&nodename=' . $node['name'];
}
// Send HTML_Menu the structure, title and URL for the items in our tree
$params = array( 'structure' => $data, 'titleField' =>
'name',
'urlField' =>'url');
// Create the output driver object
$output =&DB_NestedSet_Output::factory($params, 'Menu');
// Fetch the menu array
$structure = $output->returnStructure();
$structure = & newHTML_Menu($structure);
$renderer =& new HTML_Menu_DirectTreeRenderer;
//Create the current URL and send it to HTML_Menu
$currentUrl = $_SERVER['PHP_SELF'].'?nodeID=' . $_GET['nodeID'] .
'&nodename=' .$_GET['nodename'];
$structure->forceCurrentUrl($currentUrl);
$structure->render($renderer,'tree');
// Output the menu
echo '<div id="mainleftnav"
class="leftbox">'.$renderer->toHtml()."</div>";