php - 可捕获的 fatal error : Argument 1 passed to (. ..) 必须是给定的 (...) 整数的实例

Question

我正在制作固定装置，当我尝试加载它们时出现错误。我需要一个 Movie 对象的实例，但我不知道为什么给出的是一个整数。出于这个原因，它告诉我我有以下错误:

 [Symfony\Component\Debug\Exception\ContextErrorException]
 Catchable Fatal Error: Argument 1 passed to Filmboot\MovieBundle\Document\A
 ward::setMovie() must be an instance of Filmboot\MovieBundle\Document\Movie
 , integer given, called in C:\Programming\xampp\htdocs\filmboot.web\src\Fil
 mboot\MovieBundle\DataFixtures\MongoDB\Awards.php on line 143 and defined i
 n C:\Programming\xampp\htdocs\filmboot.web\src\Filmboot\MovieBundle\Documen
 t\Award.php line 107

这是我的 Fixture 类:

namespace Filmboot\MovieBundle\DataFixtures\MongoDB;

use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;

use Filmboot\MovieBundle\Document\Award;

class Awards extends AbstractFixture implements OrderedFixtureInterface {
    public function load(ObjectManager $manager) {
        $awards = array(
            array(
                "name"     => "Sitges",
                "year"     => "1992",
                "category" => "Best director"
        );

        foreach ($awards as $award) {
            $document = new Award();
            $document->setName    ($award["name"]);
            $document->setYear    ($award["year"]);
            $document->setCategory($award["category"]);

            $manager->persist($document);
            $this->addReference("award-" .$i, $award);

        }

        $manager->flush();
    }
    public function getOrder() {
        return 1;
    }
}

这是文档类:

namespace Filmboot\MovieBundle\Document;

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Doctrine\Common\Collections\ArrayCollection;
use Filmboot\MovieBundle\Util;

/**
 * @ODM\Document(db="filmbootdb", collection="awards")
 * @ODM\Document(repositoryClass="Filmboot\MovieBundle\Document\AwardRepository")
 */
class Award {
    /**
     * @ODM\Id
     */
    private $id;

    /**
     * @ODM\String
     */
    private $name;

    /**
     * @ODM\Int
     */
    private $year;

    /**
     * @ODM\String
     */
    private $category;


    /**
     * @ODM\ReferenceOne(targetDocument="Movie", mappedBy="awards", cascade={"persist"})
     */
    private $movie;



    public function getId()        {
        return $this->id;
    }

    public function setName($name) {
        return $this->name = $name;
    }

    public function getName()      {
        return $this->name;
    }

    public function setYear($year) {
        return $this->year = $year;
    }

    public function getYear()      {
        return $this->year;
    }

    public function setCategory($category) {
        return $this->category = $category;
    }

    public function getCategory()  {
        return $this->category;
    }    

    public function setMovie(\Filmboot\MovieBundle\Document\Movie $movie)   {
        $movie->setAward($this);
        return $this->movie = $movie;
    }

}

Answer 1

正如我们所看到的，您明确地为电影提供了一个整数:

$awards = array(
            array(
                // ...
                "movie"    => 1,
            ),
          );

// ...

$document->setMovie   ($award["movie"]);

而不是电影对象，所以脚本崩溃，因为它需要一个电影对象:

public function setMovie(\Filmboot\MovieBundle\Document\Movie $movie)   {
    return $this->movie = $movie;
}

所以解决方案是创建电影的固定装置并给它们一个 reference :

// When saving inside Movie fixtures
$manager->persist($movie);
$manager->flush();
$this->addReference('movie-'.$i, $movie); // Give the references as movie-1, movie-2...

然后首先使用 getOrder() 方法加载它们:

public function getOrder()
{
    return 0; // 0, loaded first
}

控制奖项在电影之后加载:

public function getOrder()
{
    return 1; // loaded after 0...
}

并且在您的 Award fixtures 中通过引用检索它们之后，它将加载整个对象，而不仅仅是一个 id(整数):

$awards = array(
            array(
                // ...
                "movie"    => $this->getReference('movie-1'), // Get the Movie object, not just id
            ),
          );

// ...

$document->setMovie   ($award["movie"]);

请注意，如果您想使用引用和顺序，您的 fixture 类需要实现 OrderedFixtureInterface :

namespace Acme\HelloBundle\DataFixtures\ORM;

use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Acme\HelloBundle\Entity\Group;

class LoadGroupData extends AbstractFixture implements OrderedFixtureInterface

你必须对所有其他实体(如 Actor 、导演...)执行此操作

您可以找到有关在灯具之间共享对象(通过引用)的文档 here .

编辑:

为了双向工作，调整奖励 setter :

public function setMovie(\Filmboot\MovieBundle\Document\Movie $movie)   {
    $movie->setAward($this);
    return $this->movie = $movie;
}

并使用 cascade persist 调整持久性:

/**
 * @ODM\ReferenceOne(targetDocument="Movie", mappedBy="awards", cascade={"persist"})
 */
private $movie;