public static function getNonBlameds($user = null)
    {
        $noInit = static::buildNoInitModel();
        /* @var $noInit static */
        $createdByAttribute = $noInit->createdByAttribute;
        if (!$user) {
            $user = \Yii::$app->user->identity;
        }
        $cond = [
            $createdByAttribute => $user->getGUID(),
            $noInit->multiBlamesAttribute => ''
        ];
        return static::find()->where($cond)->all();
    }