So I 'm trying to override the articles.xml in my administrator folder. I figured out that I could create my own plugin and redirect it to another folder.
So here is what I did:

Creating a custom plugin.php

defined( '_JEXEC' ) or die( 'Restricted access' );

class plgSystemmyPlugin extends JPlugin{
function onContentPrepareForm($form, $data) {

and creating a xml file:

<?xml version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin" group="system">
    <name>Custom Plugin</name>
    <author>Joomla! Project</author>
    <creationDate>November 2005</creationDate>
    <copyright>Copyright (C) 2005 - 2013 Open Source Matters. All rights reserved.</copyright>
    <license>GNU General Public License version 2 or later; see LICENSE.txt</license>
    <authorEmail>[email protected]</authorEmail>
        <filename plugin="customplugin">customplugin.php</filename>


I tried to install it, but it doesn't work. I have already my xml file in my administrator/templates/isis/html/com_content/article.xml

Can anyone please help me fix this? I don't know how to get it to work, so it reads my custom article.xml instead of the original one.

I have been looking in this thread, but I dont know how to get it to work, I think im doing something wrong. enter link description here

  • The link you are referred is an old discussion (Joomla 1.5). Can you be more detail about what kind of override you are trying to achieve? Do you want to add additional fields when adding a new article? Or maybe something else?
    – webchun
    Commented Oct 21, 2015 at 3:25
  • Yes i want to create more text fields in my edit.php file, and i have to edit the XML files to. And also the article.php in models folder. :)
    – Peter
    Commented Oct 21, 2015 at 7:09

1 Answer 1


To add additional custom fields to your article you can create a content plugin by following steps on this article

Or you can install this plugin and learn how to add the custom fields for joomla article from it.

To add custom fields for other component you can follow this documentation

To override the article.xml in the models/forms/ folder you can install this plugin and add your override file in the folder


for the admin side



for the frontend side

  • thank you very much, i used the Joomla XML form plugin and it works like a charm. thanks for that
    – Peter
    Commented Oct 22, 2015 at 7:07

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