我想知道是否可以在 Doctrine 查询构建器中检查一个数组是否包含另一个数组的任何元素。

在我的例子中，我想获得所有产品(项目)，这些产品(项目)至少具有传入参数的数组中的一个类别。

Relationship between Item and Category :

/**
 *  @ORM\ManyToMany(targetEntity="Category")
 *  @ORM\JoinTable(name="items_categories",
 *      joinColumns={@ORM\JoinColumn(name="item_id", referencedColumnName="id", nullable=false)},
 *      inverseJoinColumns={@ORM\JoinColumn(name="category_id", referencedColumnName="id", nullable=false)}
 *      )
 */
private $categories;

My first try from the Item repository (i know this work if i have only one value to check):

public function getListItemsFromCatList($listCat) {
    $qb = $this->createQueryBuilder('i');

    $qb->select('i')
            ->where($qb->expr()->like('i.categories', ':listCat'))
            ->setParameter('listCat', '%"' . $listCat . '"%');

    return $qb->getQuery()->getResult();
}

$listCat 是类别实体的数组:

array (size=5)
  0 => 
    object(ItemBundle\Entity\Category)[518]
      private 'id' => int 22
      private 'children' => 
        object(Doctrine\ORM\PersistentCollection)[520]
          private 'snapshot' => 
            array (size=2)
              ...
          private 'owner' => 
            &object(ItemBundle\Entity\Category)[518]
          private 'association' => 
            array (size=15)
              ...
          private 'em' => 
            object(Doctrine\ORM\EntityManager)[796]
              ...
          private 'backRefFieldName' => string 'parent' (length=6)
          private 'typeClass' => 
            object(Doctrine\ORM\Mapping\ClassMetadata)[579]
              ...
          private 'isDirty' => boolean false
          protected 'collection' => 
            object(Doctrine\Common\Collections\ArrayCollection)[515]
              ...
          protected 'initialized' => boolean true
      private 'parent' => null
      private 'name' => string 'Luxe' (length=4)
  1 => 
    object(ItemBundle\Entity\Category)[504]
      private 'id' => int 25
      private 'children' => 
        object(Doctrine\ORM\PersistentCollection)[505]
          private 'snapshot' => 
            array (size=0)
              ...
          private 'owner' => 
            &object(ItemBundle\Entity\Category)[504]
          private 'association' => 
            array (size=15)
              ...
          private 'em' => 
            object(Doctrine\ORM\EntityManager)[796]
              ...
          private 'backRefFieldName' => string 'parent' (length=6)
          private 'typeClass' => 
            object(Doctrine\ORM\Mapping\ClassMetadata)[579]
              ...
          private 'isDirty' => boolean false
          protected 'collection' => 
            object(Doctrine\Common\Collections\ArrayCollection)[500]
              ...
          protected 'initialized' => boolean false
      private 'parent' => 
        object(ItemBundle\Entity\Category)[512]
          private 'id' => int 23
          private 'children' => 
            object(Doctrine\ORM\PersistentCollection)[513]
              ...
          private 'parent' => 
            object(ItemBundle\Entity\Category)[518]
              ...
          private 'name' => string 'Bijoux' (length=6)
      private 'name' => string 'Bagues' (length=6)

最佳答案

我会通过添加连接来解决它。

public function getListItemsFromCatList($listCat) {

    $em = $this->getDoctrine()->getManager();

    $qb = $em->createQueryBuilder();
    $qb->select('i')           
        ->from('AppBundle:Item', 'i')
        ->innerJoin('i.categories','cat')
        ->where('cat IN (:listCat)')
       ->setParameter('listCat', $listCat);

    return  = $qb->getQuery()->getResult();
}

请注意，此方法将过滤项目内的类别。这意味着当您尝试从给定项目中获取类别时 i , $i->getCategories() , 它只会返回 i 中的类别与 $listCat 匹配.

如果您需要使用每个项目的所有类别，即使那些与 $listCat 不匹配的类别.我会建议您使用子查询进行过滤，并使用主查询返回完整项目。如果您需要任何进一步的帮助，请发表评论。

关于php - 检查一个数组是否包含 Doctrine 查询生成器中另一个数组的任何元素，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41685305/