How to autosave in Yii2?

Question

Yii

Show with an example how to make autosave if not difficult)
I roughly know that I need to apply behaviors, but I just can’t understand how it works.
For example, there is a behaviors controller with an action:

public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['post'],
                ],
            ],
        ];
    }

action:

public function actionCreate()
    {
        $model = new History();

        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            return $this->redirect(['view', 'id' => $model->history_id]);
        } else {
            return $this->render('create', [
                'model' => $model,
            ]);
        }
    }

well, the form:

<?php $form = ActiveForm::begin(); ?>
<?= Html::activeTextInput($model, 'ik_co_id', ['class'=>'form-item req', 'value' => "{$_POST['ik_co_id']}"]) ?>
<div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('frontend', 'Create') : Yii::t('frontend', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

Answer 1

In your example, behavior describes only restrictions on the type of request (GET, POST) for actions. Can you elaborate on what exactly you mean by autosave?