简单的 Doctrine 查询生成器

Question

我是 Symfony 和 Doctrine 的新手。无法理解如何编写 queryBuilder。简单来说 SQL 两者之一：

select c.*, s.result
from client c
 inner join score s on c.id = s.client_id;

select c.*, s.result
from client c, score s where c.id = s.client_id;

我从 ClientRepository 尝试了以下内容：

$clients = $this->createQueryBuilder('c')
    ->select('c')
    ->innerJoin(Score::class, 's', 'with', 's.client = c.id')
    ->getQuery()
    ->getResult();

没有看到 score.result 数据。关系客户端<=>得分为OneToOne 那么如何 return 带有附加结果属性的客户端对象数组？

实体：

客户：

/**
 * @ORM\Entity(repositoryClass="App\Repository\ClientRepository")
 */

class Client
{
    use TimestampableEntity;

    /**
     * @ORM\Id()
     * @ORM\GeneratedValue()
     * @ORM\Column(type="integer")
     *
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=64)
     * @Assert\NotBlank()
     */
    private $name;

    /**
     * @ORM\Column(type="string", length=64)
     * @Assert\NotBlank()
     */
    private $surname;

    /**
     * @ORM\Column(type="string", length=128, unique=true)
     * @Assert\NotBlank()
     * @Assert\Email(
     *     message = "The email '{{ value }}' is not a valid email."
     * )
     */
    private $email;

    /**
     * @ORM\Column(type="string", length=32)
     * @Assert\NotBlank()
     * @Assert\Type(
     *     type="numeric",
     *     message="The value {{ value }} is not a number {{ type }}."
     * )
     * @Assert\Length(
     *      min = 11,
     *      max = 32,
     *      minMessage = "Your phone number must be at least {{ limit }} characters long",
     *      maxMessage = "Your phone number cannot be longer than {{ limit }} characters",
     *      allowEmptyString = false
     * )
     */
    private $phone;

    /**
     * @ORM\Column(type="boolean")
     */
    private $processData;

    /**
     * @ORM\ManyToOne(targetEntity="App\Entity\Education")
     * @ORM\JoinColumn(nullable=false)
     * @Assert\NotBlank()
     */
    private $education;

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

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

    public function setName(string $name): self
    {
        $this->name = $name;

        return $this;
    }

    public function getSurname(): ?string
    {
        return $this->surname;
    }

    public function setSurname(string $surname): self
    {
        $this->surname = $surname;

        return $this;
    }

    public function getEmail(): ?string
    {
        return $this->email;
    }

    public function setEmail(string $email): self
    {
        $this->email = $email;

        return $this;
    }

    public function getPhone(): ?string
    {
        return $this->phone;
    }

    public function setPhone(string $phone): self
    {
        $this->phone = $phone;

        return $this;
    }

    public function getProcessData(): ?bool
    {
        return $this->processData;
    }

    public function setProcessData(bool $processData): self
    {
        $this->processData = $processData;

        return $this;
    }

    public function getEducation(): ?Education
    {
        return $this->education;
    }

    public function setEducation(?Education $education): self
    {
        $this->education = $education;

        return $this;
    }
}

得分：

/**
 * @ORM\Entity(repositoryClass="App\Repository\ScoreRepository")
 */
class Score
{
    use TimestampableEntity;

    /**
     * @ORM\Id()
     * @ORM\GeneratedValue()
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="integer", nullable=true)
     */
    private $result;

    /**
     * @ORM\OneToOne(targetEntity="App\Entity\Client", cascade={"persist", "remove"})
     * @ORM\JoinColumn(nullable=false)
     */
    private $client;

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

    public function getResult(): ?int
    {
        return $this->result;
    }

    public function setResult(?int $result): self
    {
        $this->result = $result;

        return $this;
    }

    public function getClient(): ?Client
    {
        return $this->client;
    }

    public function setClient(Client $client): self
    {
        $this->client = $client;

        return $this;
    }
}

那么如何 return 带有附加结果属性的客户端对象数组？

Answer 1

正常的 Symfony 和 Doctrine 方法是将 Client - Score 关联更改为 bidirectional 而不是当前的单向关联。

正在更新您的客户端实体端：

/**
 * @ORM\OneToOne(targetEntity="App\Entity\Score", mappedBy="client")
 */
private $score;

public function getScore(): ?Score
{
    return $this->score;
}

public function setScore(Score $score): self
{
     $this->score = $score;

     return $this;
}

你的分数实体：

/**
 * @ORM\OneToOne(targetEntity="App\Entity\Client", inversedBy="score" cascade={"persist", "remove"})
 * @ORM\JoinColumn(nullable=false)
 */
private $client;

然后您不需要编写任何特定的查询生成器。当您有可用的 Client 对象时，您可以调用 getter 来获取关联的 Score 对象。

$client->getScore();

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