Create custom plugin joomla with custom ordering on install - joomla

Question

Is the a trick to set my custom plugin to load the final plugin in joomla?
I want to set order on install and not after.
Is s there a custom params to set in xml like order="xxx" ?

Answer 1

I just found the answer by adding in the xml file
<scriptfile>script.php</scriptfile>
And in the script file
<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
/**
* Script file of yourplugin component.
*/
class plgSystemyourplginInstallerScript
{
/**
* method to run after an install/update/uninstall method.
*/
public function postflight($type, $parent)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$fields = array(
$db->quoteName('ordering').' = '.(int) 999,
);
$conditions = array(
$db->quoteName('element').' = '.$db->quote('wraprotect'),
$db->quoteName('type').' = '.$db->quote('plugin'),
);
$query->update($db->quoteName('#__extensions'))->set($fields)->where($conditions);
$db->setQuery($query);
$db->execute();
// $parent is the class calling this method
// $type is the type of change (install, update or discover_install)
}
}
Don't forget to edit your plugin name
And in joomla 1.5 edit #__extensions to #__plugins
And delete the line $db->quoteName('type').' = '.$db->quote('plugin')