Question

我的联接在sql中看起来像这样：

   SELECT m.* 
     FROM settings AS s 
LEFT JOIN modules AS m on s.name = m.module 
    WHERE s.value = 1 
      AND s.category = 'module_status'

我无法弄清楚如何在Doctrine 2中重现这一点。非常感谢任何帮助！

以下是我的实体：

namespace Entities;
use Doctrine\Common\Collections\ArrayCollection;

/**
 * Modules
 *
 * @Table(name="modules")
 * @Entity(repositoryClass="Repositories\Modules")
 */
class Modules
{
    /**
     * @var integer $id
     *
     * @Column(name="id", type="integer", nullable=false)
     * @Id
     * @GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var string $module
     * @Column(name="module", type="string", length=255, nullable=false)
     */
    private $module;

    /**
     * @var string $label
     * @Column(name="label", type="string", length=255, nullable=false)
     */
    private $label;

    /**
     * @var string $package
     *
     * @Column(name="package", type="string", length=255, nullable=true)
     */
    private $package;

    /**
     * @var string $path
     *
     * @Column(name="path", type="string", length=255, nullable=true)
     */
    private $path;

    /**
     * @var float $version
     *
     * @Column(name="version", type="float", nullable=false)
     */
    private $version;

    public function getId() {
        return $this->id;
    }

    public function getModule() {
        return $this->module;
    }

    public function getLabel() {
        return $this->label;
    }

    public function getPackage() {
        return $this->package;
    }

    public function getPath() {
        return $this->path;
    }

    public function getVersion() {
        return $this->version;
    }

    public function setId($id) {
        $this->id = $id;
    }

    public function setModule($module) {
        $this->module = $module;
    }

    public function setLabel($label) {
        $this->label = $label;
    }

    public function setPackage($package) {
        $this->package = $package;
    }

    public function setPath($path) {
        $this->path = $path;
    }

    public function setVersion($version) {
        $this->version = $version;
    }


}



namespace Entities;


use Doctrine\ORM\Mapping as ORM;

/**
 * Settings
 *
 * @Table(name="settings")
 * @Entity(repositoryClass="Repositories\Settings")
 */
class Settings
{
    /**
     * @var integer $id
     *
     * @Column(name="id", type="integer", nullable=false)
     * @Id
     * @GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var string $name
     *
     * @Column(name="name", type="string", length=255, nullable=true)
     */
    private $name;

    /**
     * @var string $category
     *
     * @Column(name="category", type="string", length=255, nullable=true)
     */
    private $category;

    /**
     * @var text $value
     *
     * @Column(name="value", type="text", nullable=true)
     */
    private $value;

    public function getId() {
        return $this->id;
    }

    public function getName() {
        return $this->name;
    }

    public function setName($name) {
        $this->name = $name;
    }

    public function getCategory() {
        return $this->category;
    }

    public function setCategory($category) {
        $this->category = $category;
    }

    public function getValue() {
        return $this->value;
    }

    public function setValue($value) {
        $this->value = $value;
    }
}

Answer 1

首先，您需要在“设置”和“模块”实体之间配置关联。我假设两者之间的关系是多对多的：

Class Modules
{
    /**
     * @ManyToMany(targetEntity="Settings", inversedBy="modules")
     * @JoinTable(name="modules_settings")
     */
    private $settings;
}

Class Settings
{
    /**
     * @ManyToMany(targetEntity="Modules", mappedBy="settings")
     */
    private $modules;
}

然后您的查询语法如下所示：

$qb->select('s', 'm')
   ->from('Entities\Settings', 's')
   ->leftJoin('s.modules')
   ->where('s.value = 1');

我无法分析你的AND子句中发生了什么，但是如果你拥有的是正确的，那么你只需将这一行添加到查询的末尾：

->andWhere('s.category = m.status');

Answer 2

感谢您的帮助。这就是查询最终的结果：

$qb = $this->_em->createQueryBuilder()
   ->select('m')
   ->from('Entities\Modules', 'm')
   ->leftJoin('m.settings', 's')
   ->where('s.value = :enabled')
   ->andWhere('s.category = :moduleStatus')
   ->setParameter('moduleStatus', 'module_status')
   ->setParameter('enabled', 1)
   ->getQuery();

这是我配置模块实体的方式：

/**
* @OneToOne(targetEntity="Entities\Settings")
* @JoinColumn(name="module", referencedColumnName="name")
*/
private $settings;

如何使用Doctrine 2重现此JOIN？

2 个答案: