protected function getSubMenu()
    {
        return array(
            array(
                'label' => Yii::t('AuthModule.main', 'Assignments'),
                'url' => array('/auth/assignment/index'),
                'active' => $this instanceof AssignmentController,
            ),
            array(
                'label' => $this->capitalize($this->getItemTypeText(CAuthItem::TYPE_ROLE, true)),
                'url' => array('/auth/role/index'),
                'active' => $this instanceof RoleController,
            ),
            array(
                'label' => $this->capitalize($this->getItemTypeText(CAuthItem::TYPE_TASK, true)),
                'url' => array('/auth/task/index'),
                'active' => $this instanceof TaskController,
            ),
            array(
                'label' => $this->capitalize($this->getItemTypeText(CAuthItem::TYPE_OPERATION, true)),
                'url' => array('/auth/operation/index'),
                'active' => $this instanceof OperationController,
            ),
        );
    }