Access my Model after HTTP-POST (newbee question)

Yii 2.0 General Discussions
1

Hi there,

I have a best practice question as I’m still struggling with the whole concept of Yii (2). And I’m a network engineer and not much of a SE :slight_smile:

I would basically like to access my model after a POST and don’t know where to initialize it to be able to do so.

Say I have a controller with one actionMethod():




public function actionProvision()

    {

        $model = new Model();

        

        if ($model ->load(Yii::$app->request->post()) && $model->validate()){

            //here I'd like to access my Model

            return $this->render('provision-confirm', ['model' => $model]);

        } else {

            $model ->loadStuffFromSSH();

            $model ->loadALotMore();

            return $this->render('provision', ['model' => $model]);

        }

    }

In the Model I have the functions loadStuffFromSSH(), etc. these functions load various stuff which are then held in public accessible vars/arrays in the Model.

The provision-View consists basically of a Form with a few drop-down lists on which the user can select various things and then hit the "provision" button.

Now I would like to access my model because I need quite a few things which are not getting submitted in the HTTP-POST.

How would you ideally accomplish this?

Or is it better to save all those things to a temporary DB-Table or submit EVERYTHING in hidden fields?

Thank you for pointing me here in the right direction :)

br

Simon

2

What is the problem in accessing model in ‘//here I’d like to access my Model’ comment row ?

Why should you save to a temporary DB-Table or submit EVERYTHING in hidden fields?

Take care that you enter in this block




if ($model ->load(Yii::$app->request->post()) && $model->validate()){

only if $_POST[$model->formName()] is set and data are validated. So it’s not enough that user submits form, but data have to verify all model rules validation.

3

Thank you for your answer but I do not understand…

the function actionProvision() is called again when I submit the Form.

So I have again a new $model which is then filled with (only) the data POSTed in the Form by calling


$model->load(Yii:$app->request->post())

but my previous instance of $model is lost.

But I like to access data contained in the $model before the POST.

Maybe the question is really: where should I put data that is gathered when calling actionProvision() initially and still be accessible when calling actionProvision() again (because the Form has been submitted).

I hope I’ve explained that not too confused ;)

4

To access data before post:




public function actionProvision()

    {

        $model = new Model();

     

        if ($model ->load(Yii::$app->request->post()) && $model->validate()){

            //here I'd like to access my Model


            $modelBeforePost = Model::findOne(['id_or_other_unique_field' => $model->id_or_other_unique_field]);


            return $this->render('provision-confirm', ['model' => $model]);

        } else {

            $model ->loadStuffFromSSH();

            $model ->loadALotMore();

            return $this->render('provision', ['model' => $model]);

        }

    }