Yii2 - ActiveRecord with relations to array - yii2

Question

I know there is the answer to use asArray().
But what if I need model from relation and array at the same time?
In this example demoJson is without relations:
$demo = Demo::find()->with('bundles')->one();
// view
<?= var demoJson = json_encode($demo) ?> <!-- Using as array ERROR -->
<?= $demo->bundles[0]->someFunc() ?> <!-- Using model OK -->
In this example there is no someFunc() because a simple array used:
$demo = Demo::find()->with('bundles')->asArray()->one();
// view
<?= var demoJson = json_encode($demo) ?> <!-- Using as array OK -->
<?= $demo['bundles'][0]->someFunc() ?> <!-- Using model ERROR -->
So, how to get array from model with all its relations but without using asArray.

Answer 1

You might try:
$demo = Demo::find()->with('bundles')->limit(1)->one();
// view
<?= var demoJson = json_encode($demo->toArray()) ?>
<?= $demo->bundles[0]->someFunc() ?>
The Demo model could be this:
namespace app\models;
use yii\db\ActiveRecord;
Class Demo extends ActiveRecord
{
// ...
/**
* #return array
*/
public function fields()
{
$fields = parent::fields();
if ($this->isNewRecord) {
return $fields;
}
$fields['bundles'] = function() {
$bundles = [];
foreach ($this->bundles as $bundle) {
$bundles[] = $bundle->toArray();
}
return $bundles;
}
return $fields;
}
}