Edit with an addon the Forum.php NodeHandler

[Mattia Del Franco]

Hi!

I'm new to XenForo, so I don't have much experience with this platform and his plugins.

I'm trying to edit the /library/XenForo/NodeHandler/Forum.php file with a plugin (because I have many files to edit, to get a rendering depth > of 2) and in particular this function:

public function renderNodeForTree(XenForo_View $view, array $node, array $permissions,
        array $renderedChildren, $level
    )
    {
        $templateLevel = ($level <= 2 ? $level : 'n');

        return $view->createTemplateObject('node_forum_level_' . $templateLevel, array(
            'level' => $level,
            'forum' => $node,
            'renderedChildren' => $renderedChildren
        ));
    }

(I need to edit the "2" with "3").

How to achieve this with a plugin?

I'm trying following this guide: https://xenforo.com/community/threads/creating-an-addon.5416/ and I ended getting 2 files:

library/NodeLvl/XenForo/NodeHandler/NodeLvl.php

<?php

class NodeLvl_XenForo_NodeHandler_NodeLvl extends XenForo_NodeHandler_Forum
{

    public function renderNodeForTree(XenForo_View $view, array $node, array $permissions,
        array $renderedChildren, $level
    )
    {
        $templateLevel = ($level <= 3 ? $level : 'n');

        return $view->createTemplateObject('node_forum_level_' . $templateLevel, array(
            'level' => $level,
            'forum' => $node,
            'renderedChildren' => $renderedChildren
        ));
    }

}
?>

library/NodeLvl/Listener/LoadClassController.php

<?php

class NodeLvl_Listener_LoadClassController
{
        public static function loadClassListener($class, &$extend)
        {

                if ($class == 'XenForo_NodeHandler_Forum')
                {
                        $extend[] = 'NodeLvl_XenForo_NodeHandler_NodeLvl';
                }

        }

}

?>

But nothing seems to happen, any advice?

 

[[xFv]]

did you create a Code Event Listener in debug ACP?

 

[Mattia Del Franco]

did you create a Code Event Listener in debug ACP?

yes, I did.

 

[James]

Your extend is trying to locate file NodeLvl.php in NodeLvl/XenForo/NodeHandler/NodeLvl.php but your file is saved in NodeLvl/XenForo/NodeHandler.php?

Your class name needs to match the directory structure or else the autoloader can't find it.

 

[Liam W]

Also, youre extending the wrong class in you extension. You should be extending XFCP_classname.

Liam

 

[James]

Also you should probably utilise the edit hint in the code event listeners and strip the if statement out of your listener.

 

[Mattia Del Franco]

Your extend is trying to locate file NodeLvl.php in NodeLvl/XenForo/NodeHandler/NodeLvl.php but your file is saved in NodeLvl/XenForo/NodeHandler.php?

Your class name needs to match the directory structure or else the autoloader can't find it.

Sorry, I writed wrong in the topic, the directory is library/NodeLvl/XenForo/NodeHandler/NodeLvl.php

 

[Mattia Del Franco]

That's the code "fixed":

library/NodeLvl/XenForo/NodeHandler/NodeLvl.php

<?php

class NodeLvl_XenForo_NodeHandler_NodeLvl extends XFCP_NodeLvl_XenForo_NodeHandler_NodeLvl
{

    public function renderNodeForTree(XenForo_View $view, array $node, array $permissions,
        array $renderedChildren, $level
    )
    {
        $templateLevel = ($level <= 3 ? $level : 'n');

        return $view->createTemplateObject('node_forum_level_' . $templateLevel, array(
            'level' => $level,
            'forum' => $node,
            'renderedChildren' => $renderedChildren
        ));
    }

}
?>

library/NodeLvl/Listener/LoadClassController.php

<?php


class NodeLvl_Listener_LoadClassController
{
        public static function loadClassListener($class, &$extend)
        {

                        $extend[] = 'NodeLvl_XenForo_NodeHandler_NodeLvl';
         
        }

}

?>

Here if I strip out the if statement as @James advised, I get this error in all the board:

Fatal error: Cannot redeclare class XFCP_NodeLvl_XenForo_NodeHandler_NodeLvl in /var/www/html/foro/library/XenForo/Application.php(528) : eval()'d code on line 1

This is the Event Code Listener:

Anyway, If I reintroduce the If statement, nothing changes

 

[James]

Have you created a template called node_forum_level_3?

 

[Mattia Del Franco]

Have you created a template called node_forum_level_3?

Yes, I created it: I already know this modify effects because I tryied it by modifying Xenforo suorce and now I'm trying to reply it with an add-on.

 

[Thomas.B]

The class you try to extend is not a controller. So you should not listen to the „load_class_controller“ event but to „load_class“.