可捕获的致命错误:传递给 (..) 的参数 1 必须是给定的 (..) 整数的实例


Catchable Fatal Error: Argument 1 passed to (...) must be an instance of (...) integer given

我正在制作夹具,当我尝试加载它们时,我遇到了错误。我需要一个 Movie 对象的实例,但我给出的,我不知道为什么,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

这是我的夹具类:

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;
    }
}

正如我们所看到的,你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;
}

因此,解决方案是创建电影的固定装置并给它们一个参考:

// 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
}

控制电影后加载奖项:

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

在您的奖项灯具中通过引用像这样检索它们之后,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,如果你想使用引用和排序,你的夹具类需要实现 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(如演员、导演)这样做......

您可以在此处找到有关在灯具之间共享对象(通过参考)的文档。

编辑:

要使双向工作,请调整 奖项设定者:

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

并通过级联持久性适应持久性:

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

因为您收到的错误消息足够清楚。这是您可以解决此错误参数映射问题的方法。

而不是将整数设置为用于填充document实例的awards数组的movie。为什么不只设置一个给定的Movie实体,你已经坚持了。

为此,您必须加载一个或多个movies(这取决于您的需求)并将此/那些 entit(y/ies) 设置为参数以填充您的document实例。

举个例子,看看这个由已经持久化的用户组填充的用户的示例(关于问题)。你可以在这里使用同样的想法。