/** * Generate the message filter * * @return string */ public function generateMessageFilter() { if (Input::post('FORM_SUBMIT') === 'tl_filters' && Input::post($this->filterName, true) !== 'tl_' . $this->filterName) { $session = Session::getInstance()->getData(); $session['seo_serp_expand_tree'] = 'tl_page'; Session::getInstance()->setData($session); } return parent::generateMessageFilter(); }