grabbee

~# more /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid10] 
md1 : active raid5 sdb2[1] sda2[0]
      39028736 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/2] [UU_]
      
md2 : active raid5 sdb3[1] sda3[0]
      460208128 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/2] [UU_]
      bitmap: 2/2 pages [8KB], 65536KB chunk

md0 : active raid1 sdb1[1] sda1[0]
      291520 blocks super 1.2 [3/2] [UU_]

In Doctrine 2.4, a feature called Entity Listeners was introduced. It is a lifecycle listener class used for an entity. You can read about it in the Doctrine Documentation.

<?php
// User.php

/** @Entity @EntityListeners({"UserListener"}) */
class User
{
    // ....
}

// UserListener.php
class UserListener
{
    public function __construct(MyService $service)  <<<
    {
        $this->service = $service;
    }

    public function preUpdate(User $user, PreUpdateEventArgs $event)
    {
        $this->service->doSomething($user);
    }
}

// register a entity listener.
$listener = $container->get('user_listener');
$em->getConfiguration()->getEntityListenerResolver()->register($listener);