Why doesn't onUserAfterSaveGroup get triggered when editing groups as Administrator?

Question

I'm having problems getting onUserAfterSaveGroup to fire on Joomla3.4.x

I've published a system plugin and tested that it works using function onUserLogin(), but when I try to use function onUserAfterSaveGroup() I fail to trigger the event.

To test the plugin, I logged into the frontend as the testuser and I logged into the backend as Admin and went to Users>Usermanager>testuser>Assigned User Groups. I then added testuser to a new usergroup and clicked Save.

In the plugin I had the following code (UPDATED)

    defined('_JEXEC') or die;
    jimport('joomla.plugin.plugin');
    class plgSystemcustomcheckJoomlaEvents extends JPlugin {

    /**
     * Constructor.
     *
     * @param   $subject
     * @param   array $config
     */     

    public function onUserAfterSaveGroup()
    {
        echo "onUserAfterSaveGroup triggered";
        die(); 
    }

    public function onUserLogin($user,$options)
    {
        /*THis WORkS */
        //echo 'onUserLogin triggered'; 
        //die();
    }
}

I expected to see the message "onUserAfterSaveGroup" show for testuser, but this didn't happen. I tried refreshing the page, but that didn't do anything either. The event wasn't triggered for Admin either (although I wasn't expecting it to). Can someone explain why the event is not triggered for testuser?

This is a follow up to my question posted at What Joomla events are triggered when a usergroup is changed?

Answer 1

Maybe I wasn't clear enough on your previous question. onUserAfterSaveGroup get's triggered only if you change usergroup (not user). This is view administrator/index.php?option=com_users&view=groups.