Php 原则：使用复合外键查询实体 设置

我有三个实体：

• 词表
• 单词列表
• 定义

WordList与WordInList有一个OneToMany关系。 WordInList与Definition之间有一种单一的关系

---

我在尝试什么 我试图查询所有定义行，其中单词_id=？单词列表_id=

在标准SQL中，我将编写以下内容：

SELECT * FROM definition WHERE word_wordlist_word_id = ? AND word_wordlist_wordlist_id = ?;

---

代码片段 WordInWordlist实体的适用部分为：

class WordInWordlist
{   
    /**
     *
     * @ORM\OneToMany(targetEntity="Definition", mappedBy="wordInWordlist")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="word_id", referencedColumnName="word_wordlist_word_id"),
     *   @ORM\JoinColumn(name="wordlist_id", referencedColumnName="word_wordlist_wordlist_id")
     * })
     * @Expose()
     **/
    protected $definitions;


    /**
     * @ORM\Id
     * @ORM\ManyToOne(targetEntity="Wordlist", inversedBy="wordInWordlist")
     * @ORM\JoinColumn(name="wordlist_id", referencedColumnName="id")
     **/
    protected $wordlist;

定义实体的适用部分如下：

class Definition
{

    /**
     * @ORM\ManyToOne(targetEntity="WordInWordlist", inversedBy="definitions")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="word_wordlist_word_id", referencedColumnName="word_id"),
     *   @ORM\JoinColumn(name="word_wordlist_wordlist_id", referencedColumnName="wordlist_id")
     * })
     **/
    protected $wordInWordlist;

我的尝试 1. 结果:

PHP Fatal error:  Uncaught Doctrine\ORM\Query\QueryException: SELECT d FROM Spellingbee\Business\Entity\Definition d WHERE d.word_wordlist_word_id = :word_id AND d.word_wordlist_wordlist_id = :wordlist_id in /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php:41 Stack trace:
#0 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(483): Doctrine\ORM\Query\QueryException::dqlError('SELECT d FROM S...')
#1 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(758): Doctrine\ORM\Query\Parser->semanticalError('line 0, col 63 ...', Array)
#2 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(279): Doctrine\ORM\Query\Parser->processDeferredPathExpressions(Object(Doctrine\ORM\Query\AST\SelectStatement))
#3 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(351): Doctrine\ORM\Query\Parser->getAST()
#4 /home/dporter/projects/lis in /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php on line 63

2. 结果:

Fatal error: Uncaught Doctrine\ORM\Query\QueryException: A single-valued association path expression to an entity with a composite primary key is not supported. Explicitly name the components of the composite primary key in the query. in /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php:235 Stack trace:
#0 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/SqlWalker.php(676): Doctrine\ORM\Query\QueryException::associationPathCompositeKeyNotSupported()
#1 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/AST/PathExpression.php(79): Doctrine\ORM\Query\SqlWalker->walkPathExpression(Object(Doctrine\ORM\Query\AST\PathExpression))
#2 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/SqlWalker.php(2295): Doctrine\ORM\Query\AST\PathExpression->dispatch(Object(Doctrine\ORM\Query\SqlWalker))
#3 /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/SqlWalker.php in /home/dporter/projects/list_management/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php on line 235

---

问题: 如何创建条令查询以获得我在上文“我在尝试什么”一节中概述的结果

---

谢谢

您是否尝试过这样做，方法的签名是数组

public function getDefinitions(array $ids)
{
 $query = $this->createQueryBuilder('d')
  ->where('d.wordInWordlist IN (:wordlist_id)')
  ->setParameter('wordlist_id', $ids)
  ->getQuery();

 return $query->getResult();
}

---

希望它能帮助您。

不幸的是，条令不允许我尝试的查询（这似乎很基本）。使用DQL或查询生成器执行此操作的唯一方法是在反向表上进行联接，并通过适当的字段进行过滤

这是我的最终结果：

public function getDefinitions($wordlist_id, $word_id)
{
    $query = $this->createQueryBuilder('d')
      ->innerJoin('d.wordInWordlist', 'w')
      ->where('w.wordlist = :wordlist')
      ->andWhere('w.word = :word')
      ->setParameters(array(
        'word' => $word_id,
        'wordlist' => $wordlist_id
        )
      )
      ->getQuery();

    return $query->getResult();
}

---

这是行不通的。IN子句用于获取实体集合。事实证明，我想要完成的事情并没有得到教义的支持。我发现注释在代码中也表达了同样的意思。

public function getDefinitions(array $ids)
{
 $query = $this->createQueryBuilder('d')
  ->where('d.wordInWordlist IN (:wordlist_id)')
  ->setParameter('wordlist_id', $ids)
  ->getQuery();

 return $query->getResult();
}

public function getDefinitions($wordlist_id, $word_id)
{
    $query = $this->createQueryBuilder('d')
      ->innerJoin('d.wordInWordlist', 'w')
      ->where('w.wordlist = :wordlist')
      ->andWhere('w.word = :word')
      ->setParameters(array(
        'word' => $word_id,
        'wordlist' => $wordlist_id
        )
      )
      ->getQuery();

    return $query->getResult();
}