Failed to save dynamic attributes from POST

[outOFFspace]

If add to from dynamic field e.g:

$form->field($product, 'dynamic_attribute_name')
                ->dropDownList(explode(',', $attribute->variants), ['required' => $attribute->required])
                ->label($attribute->title);

those attributes will not saved.

[tom--]

Have you verified that dynamic attributes in this model can be set and saved by other methods?

[outOFFspace]

I just created new model and detect that dynamic attributes saved to db, but when i try to access them - I always get null

[tom--]

I'm not in a position to debug this from here. I would need to see all of the relevant code.

[outOFFspace]

model:

class Product extends \spinitron\dynamicAr\DynamicActiveRecord {

   public static function dynamicColumn()
   {
        return 'params';
    }
}

view _attributes:

if($attributes) {
    foreach($attributes as $attribute) {
        if ($attribute->is_multiple) {
            echo $form->field($product,  $attribute->alias)->dropDownList(explode(',', $attribute->variants));
        } else {
            echo $form->field($product, $attribute->alias);
        }
    }
}

action:

public function actionEdit($id = null)
    {
        $model = null;
        $parent = null;
        if (null === $id) {
            $model = new Product();
            $model->loadDefaultValues();
            $model->currency_id = Currency::getMainCurrency()->id;
        } else {
            $model = Product::findOne($id);
        }

        $attributes = ProductAttribute::find()->all();
        if (null === $model) {
            throw new NotFoundHttpException();
        }

        $post = \Yii::$app->request->post();
        if ($model->load($post)) {
            if ($model->validate()) {
                $saveResult = $model->save();
                if ($saveResult) {
                    $model->invalidateTags();
                    $action = \Yii::$app->request->post('action', 'save');
                    $returnUrl = \Yii::$app->request->get('returnUrl', ['index']);
                    switch ($action) {
                        case 'next':
                            return $this->redirect(
                                [
                                    'edit',
                                    'returnUrl' => $returnUrl
                                ]
                            );
                        case 'back':
                            return $this->redirect($returnUrl);
                        default:
                            return $this->redirect(
                                Url::toRoute([
                                    'edit',
                                    'id' => $model->id,
                                    'returnUrl' => $returnUrl,
                                    'parent_id' => $model->category_id
                                ])
                            );
                    }
                } else {
                    \Yii::$app->session->setFlash('error', \Yii::t('app', 'Cannot save data'));
                }
            } else {
                \Yii::$app->session->setFlash('error', \Yii::t('app', 'Cannot save data'));
            }
        }

        $items = ArrayHelper::map(
            Category::find()->all(),
            'id',
            'name'
        );

        return $this->render(
            'form',
            [
                'model' => $model,
                'attributes' => $attributes,
                'items' => $items,
                'selected' => (array) $model->category_id,
                'parent' => $parent,
            ]
        );
    }

[dakipro]

I also get null when I try to access attribute. I tried basic

$model = $this->findModel($id);
$model->specs = 'test';
$model->save();

and I see [BLOB - 19 B] in database, then when I load model and dump it I get
.....
private _attributes -> array (9) [
'id' => integer 2
'dynamic_attribute' => string UTF-8 (19) "?????????specs!test"
]

however
$model->getAttribute('specs') just returns null

I tried different combinations and, but no success.
Using all the latest versions of yii2, php7 and mariadb
Where could I start debugging and fixing?
Any advice would be appreciated :)

[dakipro]

I think i have figured it out and it was supper obvious, i was not extending DynamicActiveQuery for my ModelQuery.
Now it appears to be working with simple tests (I will test it further).
Thanks for writing the extension by the way!