public function listSubAssociationsAction(string $aID = null, string $filter = null)
    {
        $this->checkStaticTemplateIsIncluded();
        $this->checkSettings();

        $this->slotExtendedAssignMultiple([
            self::VIEW_VARIABLE_ASSOCIATION_ID => $aID,
            self::VIEW_VARIABLE_FILTER => $this->getAssociationsFilter($filter),
            self::VIEW_VARIABLE_USER_FILTER => $this->getUserAssociationsFilter($filter)
        ], __CLASS__, __FUNCTION__);

        return $this->view->render();
    }