How to add properties to model after save in Yii2?

Question

Yii

Hello. I'm trying to add the current value of the date to the model when Create , but for some reason I always get null in the database.

public function afterSave($insert, $changedAttributes)
    {
        parent::afterSave($insert, $changedAttributes);

        $this->date =  new \DateTime();
    }

The date is stored in the database as a DateTime . Where is the mistake?
Thanks in advance!

Answer 1

Good evening.
Use the behavior and everything will be fine.
Add the following code to the models:

use yii\behaviors\TimestampBehavior;

    public function behaviors()
    {
        return [

            TimestampBehavior::className()

        ];
    }

And in afterSave() delete everything

Answer 2

First, not after (after saving), but before.
Secondly, better www.yiiframework.com/doc-2.0/yii-behaviors-timesta...
And for other fields (for example, user) www.yiiframework.com/doc-2.0/yii-behaviors-attribu...