How to get last insert record - Yii 2 - yii

Question

I am making application to create barcode
in my application, i want to create Barang but in issue slip i want issue slip filled automatically from the last issue slip
what can i do to fix it?
this is my view
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
/* #var $this yii\web\View */
/* #var $model backend\models\Barang */
/* #var $form yii\widgets\ActiveForm */
?>
<div class="barang-form">
<?php $form = ActiveForm::begin(); ?>
<?= $form->field($model, 'rm_code')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'nama_barang')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'berat')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'issue_slip')->textInput(['maxlength' => true]) ?>
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
<div class="row">
<?= $form->field($model, 'berat')->textInput(['maxlength' => true]) ?>
<?php echo \Yii::$app->db->getLastInsertId('{{barang}}');?>
</div>

Answer 1

In controller before render
public function actionCreate()
{
$model = new Barang();
$modelForSlip = Barang::find()->orderBy(['id'=> SORT_DESC])->one();
$model->issue_slip = $modelForSlip->issue_slip;
if ($model->load(Yii::$app->request->post())){
$model->waktu = date('Y-m-d h:m:s');
$model->user = \Yii::$app->user->identity->username;
$model->save();
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('create', [
'model' => $model,
]);
//$model->issue_slip= \Yii::$app->db->getLastInsertId();
}
}

Answer 2

Let say this is your create function:
public function actionCreate()
{
$model = new Modal();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['update', 'id' => $model->Id]);
} else {
return $this->render('create', [
'model' => $model,
]);
}
}
then redirect to new page with last inserted ID
Now make you update function like this
public function actionUpdate($id)
{
$model2 = Model::findOne($id);
$model = new Modal();
$model->issue_slip = $model2['issue_slip'];
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->Id]);
} else {
return $this->render('update', [
'model' => $model,
]);
}
}
In YII2 you can get last inserted record after save() function easily
like
$model->save();
echo $model->Id
or whatever column you want to get
instead of issue_slip you can use whatever column you want