Reusable action Yii2, failed load form view - php

Question

I want to create a reusable action inside a controller.
Yii2 usually creates the following views:
update -> render form
create -> render form
The problem is, I failed to load this form.
Yii2 throw an error Call to a member function isAttributeRequired() on string
Here is the list of My apps directory.
modules
finance
actions
- BuatPengeluaranDiBukuBankAction.php
controllers
- BukuBankController.php
views
- buku-bank
* create-pengeluaran-by-kasbon.php
* _form-pengeluaran-by-kasbon
I will describe the following code.
BuatPengeluaranDiBukuBankAction.php
class BuatPengeluaranDiBukuBankAction extends Action {
public $modelClass;
public $modelsDetailClass;
public function run() {
$request = Yii::$app->request;
if($this->modelClass->load($request->post)){
... save here & redirect
}
### Calling view
return $this->controller->render('create-pengeluaran-by-kasbon', [
'model' => $this->modelClass,
'modelsDetail' => empty($this->modelsDetailClass) ? [new BukuBankDetail()] : $this->modelsDetailClass,
]);
}
}
BukuBankController.php
class BukuBankController extends Controller {
public function actions() {
return ArrayHelper::merge(parent::actions(),[
'create-pengeluaran-by-kasbon' => [
'class' => BuatPengeluaranDiBukuBankAction::class,
'modelClass' => BukuBank::class,
'modelsDetailClass' => BukuBankDetail::class
]
]);
}
}
create-pengeluaran-by-kasbon.php
<div class="buku-bank-create-by-kasbon">
<?php echo $this->render('_form-pengeluaran-by-kasbon', [ # Failed to load
'model' => $model,
'modelsDetail' => $modelsDetail,
]) ?>
</div>
_form-pengeluaran-by-kasbon
<?php $form = ActiveForm::begin([
'id' => 'dynamic-form',
/*'type' => ActiveForm::TYPE_HORIZONTAL,
'formConfig' => ['labelSpan' => 3, 'deviceSize' => ActiveForm::SIZE_SMALL]*/
]); ?>
.... lot of field here
<?php ActiveForm::end(); ?>

Answer 1

What is happening
'modelClass' => BukuBank::class,
'modelsDetailClass' => BukuBankDetail::class
are passed as strings and not objects to your action class so before use you need to instantiate (create) this models (objects) see code below with comments.
class BuatPengeluaranDiBukuBankAction extends Action {
public $modelClass;
public $modelsDetailClass;
public function run() {
$request = Yii::$app->request;
// create instances of models here
$model = Yii::createObject($this->modelClass);
$modelsDetails = Yii::createObject($this->modelsDetailClass);
// now you can use models
if($model->load($request->post)){
... save here & redirect
}
### Calling view
return $this->controller->render('create-pengeluaran-by-kasbon', [
'model' => $model,
'modelsDetail' => $modelsDetails,
]);
}
}