public function execute()
{
$feedbackId = $this->getParameter('id', 'int');
$feedback = BackendFaqModel::getFeedback($feedbackId);
BackendModel::triggerEvent($this->getModule(), 'after_delete_feedback', array('item' => $feedback));
// there is no feedback data, so redirect
if (empty($feedback)) {
$this->redirect(BackendModel::createURLForAction('Index') . '&error=non-existing');
}
BackendFaqModel::deleteFeedback($feedbackId);
$this->redirect(BackendModel::createURLForAction('Edit') . '&id=' . $feedback['question_id'] . '&report=deleted#tabFeedback');
}