Persist ot not persist?

gistfile1.txt

File: Zen\IgBundle\Entity\AdminNotification.php

<?php
namespace Zen\IgBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\ORM\EntityManager; 

/**
 * @ORM\Entity
 * @ORM\Table(name="admin_notification")
 * @ORM\HasLifecycleCallbacks
 */
class AdminNotification {

    private $em;
    
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

[... varie definizioni di elementi ...]

       public function __construct($message="")
    {
        $em = $this->getContainer()->get('doctrine')->getEntityManager();
        $this->em = $em;
        $this->message=$message;
        $em->persist($this);
        $em->flush();
        }
    }
 
?>


File: services.xml

<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<parameters>
    <parameter key="admin_notification.class">Zen\Ig\Entity\AdminNotification</parameter>
</parameters>
    <services>
       <service id="admin_notification" class="%admin_notification.class%" public="false">
            <argument type="service" id="router"></argument>
            <!--Inject entity manager-->
            <argument type="service" id="doctrine.orm.entity_manager" />        
       </service>
    </services>
    
</container>



Nel file del controller o del command:

      new AdminNotification('CRON: Cron start');