model->attributes in Yii2 always has NULL value

Question

I have one temporary model as viewModel. In my CRUD actions (for example actionCreate) I want to get this viewModel data and assign that to a ActiveRecord model. I used below code but my model object atrribute always show NULL value for attributes:

$model = new _Users();
if ($model->load(Yii::$app->request->post())) {
    Yii::info($model->attributes,'test'); // NULL
    $attributesValue =[
            'title' => $_POST['_Users']['title'],
            'type' => $_POST['_Users']['type'],
        ];
    $model->attributes = $attributesValue;
    Yii::info($model->attributes,'test'); // NULL

    $dbModel = new Users();
    $dbModel->title = $model->title;
    $dbModel->type = $model->type . ' CYC'; // CYC is static type code
    Yii::info($dbModel->attributes,'test'); // NULL

    if ($dbModel->save()) {
            return $this->redirect(['view', 'id' => $dbModel->id]); // Page redirect to blank page
        }
}
else {
        return $this->render('create', [
            'model' => $model,
        ]);
}

I think $model->load(Yii::$app->request->post()) not working and object attribute being NULL. Is it Yii2 bug or my code is incorrect??

You must set rules for this attributes – Fortran Jul 23 '14 at 06:53 — Fortran, Jul 23 '14 at 06:53
First... show me your form and model – Fortran Jul 23 '14 at 07:52 — Fortran, Jul 23 '14 at 07:52
$model->attributes = $_POST['_Users']; – Kshitiz Sep 18 '14 at 12:25 — Kshitiz, Sep 18 '14 at 12:25

score 21 · Accepted Answer · edited Dec 25 '15 at 05:53

21

If there is no rule for your attribute the $model->load() will ignore those not in the rules of the model.

Add your attributes to the rules function

public function rules()
{
    return [
        ...
        [['attribute_name'], 'type'],
        ...
    ];
}

edited Dec 25 '15 at 05:53

GAMITG

3,670
7
30
50

answered Sep 23 '14 at 15:08

Jason G

1,288
16
32

score 3 · Answer 2 · edited Oct 15 '15 at 07:35

3

To fetch data for an individually attributes(db-fields) in yii2.0 then you should just do as:

echo $yourModel->getAttribute('email');

edited Oct 15 '15 at 07:35

Kristijan Iliev

4,747
9
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45

answered Oct 15 '15 at 07:25

Amjad Ali Chauhdry

31
1

score 1 · Answer 3 · edited Dec 25 '15 at 05:53

1

ActiveRecord $attributes is a private property Use $model->getAttribute(string)

edited Dec 25 '15 at 05:53

GAMITG

3,670
7
30
50

answered Aug 24 '14 at 11:07

Alex

19
1

Mahmut Aydın · Answer 4 · 2016-04-24T02:22:19.473

1

You can use following codes:

$model = new _Users();
$model->attributes=Yii::$app->request->post('_Users');
$model->title= $model->title
$model->type = $model->type . ' CYC'; // CYC is static type code
#$model->sampleAttribute='Hello World';

edited Apr 24 '16 at 02:22

answered Apr 24 '16 at 02:15

Mahmut Aydın

715
10
21

score 1 · Answer 5 · answered Apr 21 '21 at 10:37

1

Declare attribute as private then

echo $yourModel->attribute

work as expected

answered Apr 21 '21 at 10:37

noc_nokout

37
5

score 0 · Answer 6 · edited Apr 02 '16 at 20:28

0

You must remove all public properties (title, type, etc.) in your _User model and $model->attributes = $post will work correctly.

edited Apr 02 '16 at 20:28

Michael

50,573
20
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136

answered Apr 02 '16 at 19:17

Alexander

1

soc · Answer 7 · 2017-02-23T13:57:21.487

I have also encountered the same problem, i Add my attributes to the rules function,but also error. And i found the reason for this problem. It is beause that the submit form's name in corresponding view file is not the same as the model's name which you use in controller

[controller file]:

$model=new SearchForm();

[view file]:

<input name="SearchForm[attribus]" ...

or 

[view file]:

<?= $form->field($model,'atrribus')->textInput()?>

model->attributes in Yii2 always has NULL value

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