/**
* Instantly redirect back in case the user is already a member of all groups
*/
public function onRequest()
{
if ($this->createDataSource()->select()->from('group')->count() === 0) {
Notification::info(sprintf($this->translate('User %s is already a member of all groups'), $this->userName));
$this->getResponse()->redirectAndExit($this->getRedirectUrl());
}
}
