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当我尝试持久化数据时遇到一个错误,并且我没有找到关于有人遇到完全相同问题的帮助....

我有两个链接实体score (ManyToOne)/ player (OneToMany),当我坚持score时,学说插入存储在与我要存储的分数相对应的玩家的数组集合 $scores 中的所有分数。作为信息,我存储了一轮的每个分数,因此用户有多个分数(因此是 manyToOne/OneToMany 关系)。

我有一个包含所有分数的球员名单。我只想插入最后一个,就像其他人已经在数据库中一样。但是对于我尝试的每个解决方案,学说都会插入所有分数......即使我只将最后一个分数放在玩家分数中。然后,我删除每个实体上的持久级联,教义抛出关于实体链接的异常......

这是分数实体

/**
 * Score
 *
 * @ORM\Table(name="score")
 * @ORM\Entity(repositoryClass="AppBundle\Entity\Repository\ScoreRepository")
 */
class Score
{
/**
 * @var int
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
protected $id;

/**
 * @ORM\ManyToOne(targetEntity="AppBundle\Entity\Player", inversedBy="scores", cascade={"persist"})
 * @ORM\JoinColumn(name="player", referencedColumnName="id")
 *
 * @var Player
 */
private $player;

/**
 * @var DateTime
 *
 * @ORM\Column(name="played_at", type="datetime")
 */
private $playedAt;

/**
 * @var int
 *
 * @ORM\Column(name="value", type="integer")
 */
private $value;

这是 Player 实体:

/**
 * Player
 *
 * @ORM\Table(name="player")
 * @ORM\Entity(repositoryClass="AppBundle\Entity\Repository\PlayerRepository")
 */
class Player extends BaseUser
{
/**
 * @var int
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
protected $id;

/**
 * @var string
 *
 * @ORM\Column(name="firstname", type="string", length=255)
 */
private $firstname;

/**
 * @var string
 *
 * @ORM\Column(name="lastname", type="string", length=255)
 */
private $lastname;

/**
 * @var string
 *
 * @ORM\Column(name="job", type="string", length=255)
 */
private $job;

 /**
 * @ORM\OneToMany(targetEntity="AppBundle\Entity\Score", mappedBy="player", cascade={"persist"})
 *
 * @var ArrayCollection|Score[]
 */
private $scores;

现在是我的控制器,我想在其中保留分数

$content = $request->getContent();
    $scoresParams = [];
    if (!empty($content))
    {
        $scoresParams = json_decode($content, true); // 2nd param to get as array
    }
    $players = array();

    $transformer = $this->get('app.transformer.score');
    foreach($scoresParams as $k=>$v) {
        $players[] = $transformer->reverseTransform($v);
    }
    foreach($players as $k=>$p) {
        $index = count($p->getScores()) - 1;
        $s = $p->getScores()[$index];
        $p->setScores(array($s));
        $this->get('app.repository.score')->persist($s);
    }

我只用我想保存的分数设置了玩家分数......因为,就像我在级联上有一个坚持,而用户的所有其他分数都没有从学说中检索,命中会尝试插入它们......所以,对于第一个玩家,好的,但是对于第二个,当我持久化 $s 时,它已经有一个 ID,并且它持久化了玩家的所有数据(不仅仅是最后一个)。

转换器是一个捆绑包(League\Fractal\Transformer),它从一组数据创建一组玩家

public function reverseTransform(array $data)
{
    $this->checkRequiredFields($data);

    $player = $this->playerRepository->find($data[self::KEY_ID]);

    if (!$player) {
        throw new NotFoundException('User not found');
    }

    $scoresRaw = $data[self::KEY_ENC_SCORES];
    $scores = array();

    foreach($scoresRaw as $k => $s) {
        $score = new Score($player);
        if($s[self::KEY_ENC_SCORE_ID] != 0) {
            $score->setId($s[self::KEY_ENC_SCORE_ID]);
        }
        $score->setPlayedAt( ( new \DateTime() )->setTimestamp( $s[self::KEY_ENC_SCORE_DATE] ) );
        $score->setValue($s[self::KEY_ENC_SCORE_VALUE]);
        $scores[] = $score;
    }

    $player->setScores($scores);

    return $player;
}

你能看出这里有什么问题吗?


这是解决方案->控制器

        $content = $request->getContent();
    $scoresParams = [];
    if (!empty($content))
    {
        $scoresParams = json_decode($content, true); // 2nd param to get as array
    }
    $players = array();

    $transformer = $this->get('app.transformer.score');
    // For each players
    foreach($scoresParams as $i=>$player) {
        $scores = $player['scores'];
        foreach($scores as $j=>$s) {
            $score = $transformer->reverseTransform($s['data']);
            $this->get('app.repository.score')->merge($score);
        }
    }

    $response = new JsonResponse(array('data' => ''));
    $response->setStatusCode(201);

    return $response;

以及将分数数组反转为对象的函数

    $player = $this->playerRepository->find($data[self::KEY_USER]);

    if (!$player) {
        throw new NotFoundException('User not found');
    }

    $score = new Score($player);
    if($data[self::KEY_ID] != 0) {
        $score->setId($data[self::KEY_ID]);
    }
    $score->setPlayedAt( ( new \DateTime() )->setTimestamp( $data[self::KEY_DATE] ) );
    $score->setValue($data[self::KEY_VALUE]);

    return $score;
4

1 回答 1

1

由于您的实体来自 json,因此它未链接到实体管理器。

我认为你应该使用merge()方法来链接它。

http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/working-with-objects.html#merging-entities

    $score->setValue($s[self::KEY_ENC_SCORE_VALUE]);
    $this->get('app.repository.score')->merge($score);
    $scores[] = $score;
}
$player->setScores($scores);
于 2017-07-05T10:05:53.133 回答