I am working on a custom component. The component has some component options, using the standard config.xml file and saving it to the extensions table.

But what if I need to execute a custom script when saving the component configs? Depending on the settings of the component, I want to make some changes in the components db tables.

Is there a way provided by Joomla to add a script to the save event for component configs?

I'm still very new to Joomla component building. Any advice is most welcome!


  • Welcome to JSE, please take the tour. Feb 10, 2020 at 12:28

1 Answer 1


Create an extension plugin with onExtensionAfterSave event.

defined('_JEXEC') or die;

use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\Registry\Registry

class PlgExtensionExample extends CMSPlugin
    public function onExtensionAfterSave($context, $table, $isNew)
        // Check that we're modifying the correct component.
        if ($context !== 'com_config.component' || $table->element !== 'com_content')

        // New component params.
        $params = new Registry($table->params);

        // Your code here.

Creating a Plugin for Joomla

  • Great, thanks, will try this.
    – TVBZ
    Feb 10, 2020 at 10:30

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