Yii2 select dropdown text - yii2

Question

If I have a table in mysql like this :
mysql> select * from tipe_karyawan;
+----+-----------+-------+
| id | nama_tipe | level |
+----+-----------+-------+
| 1 | Stylist | 1 |
| 2 | Stylist | 2 |
| 3 | Stylist | 3 |
| 4 | Therapist | 0 |
+----+-----------+-------+
4 rows in set (0.00 sec)
mysql>
I want to display nama_tipe & level, so, I created like this :
<?=
$form->field($model, 'type_id')->dropDownList(
ArrayHelper::map(TipeKaryawan::find()->all(), 'id', 'nama_tipe'.'level'), ['prompt' => 'Select tipe']
)
?>
Yii2 said unknown property TipeKaryawan::nama_tipelevel
Please advice

Answer 1

Try This:
<?php
$result=ArrayHelper::map(TipeKaryawan::find()->all(), 'id',
function($model, $defaultValue) {
return $model['nama_tipe'].'-'.$model['level'];
}
);
?>
<?= $form->field($model, 'type_id')->dropDownList($result , ['prompt' => 'Select tipe']); ?>
Refer : http://www.yiiframework.com/doc-2.0/yii-helpers-basearrayhelper.html#map%28%29-detail

Answer 2

I think you should perform the concatenation in select and use alias
<?=
$form->field($model, 'type_id')->dropDownList(
ArrayHelper::map(TipeKaryawan::find()->
select(' id, concat(nama_tipe, level) as description ')->all(),
'id', 'description'), ['prompt' => 'Select tipe']
)
?>

Answer 3

You can create required array in controller, and then send it to view. Yii2 is MVC.
In controller:
$tipes = <Your concatenated array...>;
return $this->render('model' => $model, 'tipes' => $ties);
In view:
*/*#var $ties array*/
<?= $form->field($model, 'type_id')->dropDownList($ties, ['prompt' => 'Select tipe'])?>

Answer 4

In your Model add the next function:
public function getConcatenate() {
return this->nama_type . ' ' . $this->level;
}
To get this field, do the following:
Again in your model add:
public static function getList() {
$cat = TipeKaryawan::find()->all();
return yii\helpers\ArrayHelper::map($cat, 'id', 'concatenate');
}
In your View
<?= $form->field($model, 'type_id')->dropDownList( TipeKaryawan::getList() , ['prompt' => 'Select tipe']); ?>