function load(ObjectManager $manager)
{

  $xml = simplexml_load_file('data/novels.xml');
  foreach ($xml->novel as $n) {

    $Detective = $manager
      ->getRepository('MyFrontendBundle:Detective')
      ->findOneByName($n->detective);

    if (!$Detective) {
      $Detective = new Detective();
      $Detective->setName($n->detective);
      $manager->persist($Detective);
      $manager->flush();
    };

    $Novel = new Novel();
    $Novel->setTitle($n->title);
    $Novel->setDetective($Detective);
    $manager->persist($Novel);
    $manager->flush();

    foreach ($n->methods->method as $m) {
      $Method = $manager
        ->getRepository('MyFrontendBundle:Method')
        ->findOneByName($m);

      if (!$Method) {
        $Method = new Method();
        $Method->setName($m);
        $manager->persist($Method);
        $manager->flush();
      };

      $Novel->addMethod($Method);
      $manager->flush();
    }
  }
}

Listing 34.10. Plik LoadData.php z przykładu 34.1

Rozdział 34. Relacje, akcje index i show oraz widoki częściowe