如何用yii2 ActiveRecord在处理mysql所有表insert的时候，实现默认主键为uuid的简便方法吗？

<code>select uuid();</code>

<code><?php
$model = new xx();
$model->id = 'uuid()';
...
$model->save();</code>

<code>select uuid();</code>

<code><?php
$model = new xx();
$model->id = 'uuid()';
...
$model->save();</code>

<code>class PrimaryKeyBehavior extends AttributeBehavior
{
    public $primaryKeyAttribute = 'id';
    
    public $value;

    public function init()
    {
        parent::init();

        if (empty($this->attributes)) {
            $this->attributes = [
                BaseActiveRecord::EVENT_BEFORE_INSERT => [$this->primaryKeyAttribute],
            ];
        }
    }

    protected function getValue($event)
    {
        return new Expression('UUID()');
    }

}</code>

<code>class Test extends \yii\db\ActiveRecord
{
    ...
    public function behaviors()
    {
        return [
            \common\behaviors\PrimaryKeyBehavior::className(),
        ];
    }
    ...
}</code>

<code>$model->id = new \yii\db\Expression('uuid()');
</code>