Yii2 - Count and sum not include of result of ActiveQuery - mysql

Question

Basically I have a legacy query in mysql that I will be implement into ActiveRecord,
Legacy Way, as expected
SELECT
a.container_seal,
a.size ,
count(a.size) as bundles,
sum(a.piece) as pieces
FROM pipe a
WHERE a.outgoing_pipe_id IS NULL
GROUP by a.container_seal, a.size
ORDER by a.container DESC
AR Way
$modelPipe = Pipe::find()
->select([
"container_seal",
"size",
"count(size) as bundles",
"sum(piece) as pieces"
])
->where(['outgoing_pipe_id' => NULL])
->groupBy(['container_seal', 'size'])
->orderBy(['container' => SORT_DESC])
->all();
But why, when I debug it,
<pre>
<?php
print_r($modelPipe);
?>
</pre>
The count and sum is not into.
Array
(
[0] => app\models\hanwa\Pipe Object
(
[_attributes:yii\db\BaseActiveRecord:private] => Array
(
[container_seal] => TEMU6099067/ EMCCSQ6566
[size] => 15 x 35 x 0.85 x 6000
)
[_oldAttributes:yii\db\BaseActiveRecord:private] => Array
(
[container_seal] => TEMU6099067/ EMCCSQ6566
[size] => 15 x 35 x 0.85 x 6000
)
[_related:yii\db\BaseActiveRecord:private] => Array
(
)
[_errors:yii\base\Model:private] =>
[_validators:yii\base\Model:private] =>
[_scenario:yii\base\Model:private] => default
[_events:yii\base\Component:private] => Array
(
)
[_behaviors:yii\base\Component:private] => Array
(
)
)
[1] => app\models\hanwa\Pipe Object
(
[_attributes:yii\db\BaseActiveRecord:private] => Array
(
[container_seal] => TEMU6099067/ EMCCSQ6566
[size] => 35 x 35 x 0.75 x 6000
)
Is it Yii2 have another way to use sum and count in case 'select' ?

Answer 1

You shoudl add the pubblic var for bundles and pieces in your pipe model
(for recive the result of query )
class Pipe extends \yii\db\ActiveRecord
{
public $bundles;
public $pieces;
......