查询构建器：多个 AND 就像一个 OR

Question

我在实体内容和过滤器之间存在多对多关系。我想获得所有具有过滤器“1”、“2”和“3”（全部三个）的内容。我的查询给我的结果就像我会使用“或”一样，因为我得到的很多内容只有三个过滤器之一。

我的查询：

public function getContentByFilters($categ, $filter, $filter2, $filter3){
    $query = $this->createQueryBuilder('c')
    ->leftJoin('c.filterfilter', 'f')
    ->where('f.idfilter = :filter_idfilter')
    ->setParameter('filter_idfilter', $filter)
    ->andWhere('f.idfilter = :filter_idfilter')
    ->setParameter('filter_idfilter', $filter2)
    ->andWhere('f.idfilter = :filter_idfilter')
    ->setParameter('filter_idfilter', $filter3)
    ->andWhere('c.contentCategorycontentCategory = ?2')
    ->setParameter(2, $categ)
    ->getQuery()->getResult();

    return $query;
}

实体内容：

/**
 * Content
 *
 * * @ORM\Entity(repositoryClass="loic\ContentBundle\Entity\ContentRepository")
 * @ORM\Table(name="content", uniqueConstraints={@ORM\UniqueConstraint(name="idcontent_UNIQUE", columns={"idcontent"})}, indexes={@ORM\Index(name="user_id", columns={"user_id"}), @ORM\Index(name="fk_content_content_category1_idx", columns={"content_category_idcontent_category"})})
 */
class Content
{
    /**
     * @var integer
     *
     * @ORM\Column(name="idcontent", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $idcontent;

.............
/**
 * @var \Doctrine\Common\Collections\Collection
 *
 * @ORM\ManyToMany(targetEntity="loic\FilterBundle\Entity\Filter", inversedBy="contentcontent")
 * @ORM\JoinTable(name="content_has_filter",
 *   joinColumns={
 *     @ORM\JoinColumn(name="content_idcontent", referencedColumnName="idcontent")
 *   },
 *   inverseJoinColumns={
 *     @ORM\JoinColumn(name="filter_idfilter", referencedColumnName="idfilter")
 *   }
 * )
 */
private $filterfilter;

/**
 * Constructor
 */
public function __construct()
{
    $this->contentLinked = new \Doctrine\Common\Collections\ArrayCollection();
    $this->filterfilter = new \Doctrine\Common\Collections\ArrayCollection();
    $this->creationDate = new \DateTime();
}

.........

/**
 *
 * @return the \Doctrine\Common\Collections\Collection
 */
public function getFilterfilter() {
    return $this->filterfilter;
}

/**
 *
 * @param
 *          $filterfilter
 */
public function setFilterfilter($filterfilter) {
    $this->filterfilter = $filterfilter;
    return $this;
}

}

实体过滤器：

 use Doctrine\ORM\Mapping as ORM;

    /**
     * Filter
     *
     * * @ORM\Entity(repositoryClass="loic\FilterBundle\Entity\FilterRepository")
     * @ORM\Table(name="filter", uniqueConstraints={@ORM\UniqueConstraint(name="idfilter_UNIQUE", columns={"idfilter"})}, indexes={@ORM\Index(name="fk_filter_filter_category1_idx", columns={"filter_category_idfilter_category"})})
     */
    class Filter
    {
        /**
         * @var integer
         *
         * @ORM\Column(name="idfilter", type="integer", nullable=false)
         * @ORM\Id
         * @ORM\GeneratedValue(strategy="IDENTITY")
         */
        private $idfilter;

    ............


        /**
         * @var \Doctrine\Common\Collections\Collection
         *
         * @ORM\ManyToMany(targetEntity="loic\ContentBundle\Entity\Content", mappedBy="filterfilter")
         */
        private $contentcontent;

    .....

      /**
         * Constructor
         */
        public function __construct()
        {
            $this->contentcontent = new \Doctrine\Common\Collections\ArrayCollection();
            $this->user = new \Doctrine\Common\Collections\ArrayCollection();
            $this->status = 1;
        }

    ......

        /**
         *
         * @return the \Doctrine\Common\Collections\Collection
         */
        public function getContentcontent() {
            return $this->contentcontent;
        }

        /**
         *
         * @param
         *          $contentcontent
         */
        public function setContentcontent($contentcontent) {
            $this->contentcontent = $contentcontent;
            return $this;
        }

Answer 1

由于要检查 3 个过滤器，因此还需要 JOIN 3 次。就好像您有 3 个不同的 ManyToMany 关系并且只想要一行，这符合 3 个特定要求 - 唯一的区别是，您加入了相同的 table。未经测试，但它应该像这样工作

$query = $this->createQueryBuilder('c')
    ->join('c.filterfilter', 'f1')
    ->join('c.filterfilter', 'f2')
    ->join('c.filterfilter', 'f3')
    ->where('f1.idfilter = :filter_idfilter1')
    ->andWhere('f2.idfilter = :filter_idfilter2')
    ->andWhere('f3.idfilter = :filter_idfilter3')
    ->andWhere('c.contentCategorycontentCategory = :category')
    ->setParameters(array(
        'filter_idfilter1' => $filter,
        'filter_idfilter2' => $filter2,
        'filter_idfilter3' => $filter3,
        'category' => $categ,
    ))
    ->getQuery()->getResult();

内部联接可能更好，因为您只需要满足这些要求的行。另请注意，使用过多的联接通常被认为是不好的做法，并且可能会降低性能。首选解决方案通常是构建特定视图而不是多个连接。

查询构建器：多个 AND 就像一个 OR

Query builder: multiple AND act like an OR

query-builder

symfony

doctrine-orm