Yii2 how to make a redirect in a modal window on successful form validation?

Question

Yii

Hello everyone, help me understand, I can not figure out how to implement the idea correctly. In yii2, the idea is to implement a two-step registration in a modal window. Click "Register", a modal window opens with fields

public function actionSignupStepOne()
    {
        $model = new Signup;
        if (Yii::$app->request->isAjax && $model->load(Yii::$app->request->post())) {
            if ($user = $model->save()) {
                return $this->redirect('site/signup-step-two');
            } else {
                Yii::$app->response->format = Response::FORMAT_JSON;
                return ActiveForm::validate($model);
            }
        }
        return $this->renderAjax('signup-step-one', [
            'model' => $model,
        ]);
    }

, after clicking submit and successful validation, you need the second registration form to open in the same modal window, but it just redirects to the page. Tell me how can I implement this? I tried to catch the event to transfer to the success view with successful validation, and in the view already render if the success is true, but nothing happens. Tried afterValidate but also without much success.

Answer 1

Good afternoon.
This line is a redirect to another page . Return some value instead of a redirect, and in 'success' check what is returned. If the desired value is returned, then show the second form. Or try to return the form in the same way as the first

return $this->renderAjax('signup-step-two', [
'model' => $model,
]);

ps Why exactly like this $user = $model->save()?

Answer 2

It's probably X-Redirect , yii.js sends the browser to a new URL by default.
You can try

return $this->redirect('site/signup-step-two', 302, false);