FRONTEND_MVC/components/behaviors/CachedBehavior.php

<?php
namespace app\components\behaviors;

use Yii;
use yii\base\Behavior;
use yii\db\ActiveRecord;

class CachedBehavior extends Behavior
{
	public $cache_key;

	public function events()
	{
		return [
		ActiveRecord::EVENT_AFTER_INSERT => 'deleteCache',
		ActiveRecord::EVENT_AFTER_UPDATE => 'deleteCache',
		ActiveRecord::EVENT_AFTER_DELETE => 'deleteCache',
		];
	}

	public function deleteCache()
	{
		foreach ($this->cache_key as $id){
			if( isset($this->owner->id) ){
				$key = str_replace( '##', $this->owner->id, $id );
			}else{
				$key = str_replace( '##', '', $id );
			}
			Yii::$app->cache->delete($key);
		}
	}
}