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    <p>Stop messing with the UOW (it's kind of hacking), just flush it again:</p> <p><strong>Config</strong></p> <pre><code>services: bill.listener: class: MyCompany\CompanyBundle\EventListener\BillListener arguments: ["@pdf_service"] tags : - { name: doctrine.event_subscriber, connection: default } </code></pre> <p><strong>Listener</strong></p> <pre><code>&lt;?php namespace MyCompany\CompanyBundle\EventListener; use Symfony\Component\EventDispatcher\EventDispatcherInterface; use Doctrine\Common\EventSubscriber; use Doctrine\ORM\Event\OnFlushEventArgs; use Doctrine\ORM\Event\PostFlushEventArgs; use MyCompany\CompanyBundle\Service\MyPDFService; use MyCompany\CompanyBundle\Entity\Bill; class BillListener implements EventSubscriber { protected $pdfs; protected $bills; public function __construct(MyPDFService $pdfs) { $this-&gt;pdfs = $pdfs; } public function getSubscribedEvents() { return [ 'onFlush', 'postFlush' ]; } public function onFlush(OnFlushEventArgs $event) { $this-&gt;bills = []; /* @var $em \Doctrine\ORM\EntityManager */ $em = $event-&gt;getEntityManager(); /* @var $uow \Doctrine\ORM\UnitOfWork */ $uow = $em-&gt;getUnitOfWork(); foreach ($uow-&gt;getScheduledEntityInsertions() as $entity) { if ($entity instanceof Bill) { $this-&gt;bills[] = $entity; } } } public function postFlush(PostFlushEventArgs $event) { if (!empty($this-&gt;bills)) { /* @var $em \Doctrine\ORM\EntityManager */ $em = $event-&gt;getEntityManager(); foreach ($this-&gt;bills as $bill) { /* @var $bill \MyCompany\CompanyBundle\Entity\Bill */ $this-&gt;pdfs-&gt;generateFor($bill); $em-&gt;persist($bill); } $em-&gt;flush(); } } } </code></pre>
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      1. VTUpMod
    1. COthat worked for me. had to change the getSubscribedEvents function to return array( 'onFlush', 'postFlush' );
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      1. USuser2898771
    2. COWith this you will enter on a loop. onFlush -> postFlush -> onFlush and so on..
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      1. USJoão Alves
    3. COSorry but... "insertion" only happens once, the first time an entity is persisted. Anyway, the loop can be avoided using some property as a flag.
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