public function onFlush(OnFlushEventArgs $args)
    {
        $this->em = $args->getEntityManager();
        $this->uow = $this->em->getUnitOfWork();
        $this->widgetRepo = $this->em->getRepository('Victoire\Bundle\WidgetBundle\Entity\Widget');
        $this->viewRepo = $this->em->getRepository('Victoire\Bundle\CoreBundle\Entity\View');

        $updatedEntities = $this->uow->getScheduledEntityUpdates();
        $deletedEntities = $this->uow->getScheduledEntityDeletions();

        //Update View's CSS and inheritors of updated and deleted widgets
        foreach (array_merge($updatedEntities, $deletedEntities) as $entity) {
            if (!($entity instanceof Widget)) {
                continue;
            }

            /* @var Widget $entity */
            $widgetMap = $entity->getWidgetMap();
            if ($widgetMap->getAction() !== WidgetMap::ACTION_DELETE) {
                $view = $widgetMap->getView();
                if ($this->em->contains($view)) {
                    $this->updateViewCss($view);
                    $this->setTemplateInheritorsCssToUpdate($view);
                }
            }
        }

        //Remove CSS of deleted View and update its inheritors
        foreach ($deletedEntities as $entity) {
            if (!($entity instanceof View)) {
                continue;
            }

            $this->viewCssBuilder->removeCssFile($entity->getCssHash());
            $this->setTemplateInheritorsCssToUpdate($entity);
        }

        //Update CSS of updated View and its inheritors
        foreach ($updatedEntities as $entity) {
            if (!($entity instanceof View)) {
                continue;
            }

            $this->updateViewCss($entity);
            $this->setTemplateInheritorsCssToUpdate($entity);
        }

        $this->uow->computeChangeSets();
    }