amnah\yii2\user\models\User::setRegisterAttributes PHP Method

    public function setRegisterAttributes($roleId, $status = null)
    {
        // set default attributes
        $attributes = ["role_id" => $roleId, "created_ip" => Yii::$app->request->userIP, "auth_key" => Yii::$app->security->generateRandomString(), "access_token" => Yii::$app->security->generateRandomString(), "status" => static::STATUS_ACTIVE];
        // determine if we need to change status based on module properties
        $emailConfirmation = $this->module->emailConfirmation;
        $requireEmail = $this->module->requireEmail;
        $useEmail = $this->module->useEmail;
        if ($status) {
            $attributes["status"] = $status;
        } elseif ($emailConfirmation && $requireEmail) {
            $attributes["status"] = static::STATUS_INACTIVE;
        } elseif ($emailConfirmation && $useEmail && $this->email) {
            $attributes["status"] = static::STATUS_UNCONFIRMED_EMAIL;
        }
        // set attributes and return
        $this->setAttributes($attributes, false);
        return $this;
    }