public static function mayGenerally($model_object, $action) {
        $user = self::getUser();
        $model_class = get_class($model_object);
        $authItem = self::createAuthItem($action, 'any', $model_class);
        if ($model_object->autoAuthItemMatch == false) {
            $accessRules = $model_object->accessRules();
            $autItem = $accessRules[$action][$model_object->accessTerms['generalAccessTerm']];
            //this part here is defined by the user in a model in a method called accessRules()
        //what would be the best checking method if the array has been set at all
        }
        if ($user->profile->branch_id == Branch::ROOT_BRANCH && Yii::app()->user->checkAccess($authItem))
            return true;

        return false;
    }