private function importNewsletterDemoData() { $this->modelManager = Shopware()->Container()->get('models'); $newsletterGroup = $this->modelManager->find(Group::class, 1); for ($addressAmount = 0; $addressAmount < 25; $addressAmount++) { $address = new Address(); $address->setEmail('test_' . $addressAmount . '@example.com'); $address->setAdded(new \DateTime()); $address->setNewsletterGroup($newsletterGroup); $address->setIsCustomer(false); $this->modelManager->persist($address); } $this->modelManager->flush(); }