Symfony 按角色查找用户(JSON 数组 Doctrine 属性) [英] Symfony find user by role (JSON array Doctrine property)

问题描述

我正在做一个小项目，其中我有一个实体，其中包含一个由数组组成的角色属性.

我想要做的是，在某个控制器中，找到一个在角色数组中具有特定角色的现有实体.

我正在尝试使用 findOneBy() 方法，但我似乎无法使其工作，即使存在我试图找到的具有特定角色的实体，它也始终返回 null.

这是我的实体及其属性:

/*** @ORM\Entity(repositoryClass=SalarieRepository::class)*/工资等级{/*** @ORM\Id* @ORM\GeneratedValue* @ORM\Column(type=整数")*/私人 $id;/*** @ORM\Column(类型=字符串"，长度=255)*/私人 $nom;/*** @ORM\Column(类型=字符串"，长度=255)*/私人 $prenom;/*** @ORM\Column(类型=字符串"，长度=255)*/私人 $email;/*** @ORM\Column(类型=字符串"，长度=255，可为空=真)*/私人电话；/*** @ORM\Column(类型=字符串"，长度=255)*/私人服务；/*** @ORM\Column(type=json")*/私人 $roles = [];//吸气剂 &二传手}

这是我在控制器中使用 findOneBy() 尝试的示例，它返回 null:

$rolecheck = $this->salarieRepository->findOneBy([roles" => [ROLE_RESPONSABLE_RH"]]);

当我尝试使用不是数组的实体的任何其他属性时，如果我执行以下操作:

$rolecheck = $this->salarieRepository->findOneBy(["nom" => "test"]);dd($rolecheck);

它将显示正确的实体:

SalarieController.php 第 47 行:应用\实体\薪水{#1501 ▼-id: 6-nom:测试"-prenom:测试"-电子邮件:[e-mail]"-电话:空-服务:Graphisme"-角色:数组:3 [▼0 =>ROLE_RESPONSABLE_RH"1 =>ROLE_RESPONSABLE_SERVICE"2 =>ROLE_SALARIE"]}

我们还可以看到它确实有角色数组，其中包含我试图在其中找到的角色.

关于我如何尝试找到具有特定角色 ROLE_RESPONSABLE_RH" 的实体的任何线索?

解决方案

你的 $roles 属性是 json 类型，这意味着它在你的数据库中是这样存储的:

[ROLE_RESPONSABLE_RH"、ROLE_RESPONSABLE_SERVICE"、ROLE_SALARIE"]

您需要询问 Doctrine JSON 数组是否包含角色，但您不能使用 findOneBy() 方法这样做.

当您遇到 ORM 限制时，您可以使用 带有 ResultSetMapping 的本机查询.它允许您使用 DBMS 的特定功能编写纯 SQL 查询，但仍能获取实体对象.

在您的 SalarieRepository 类中创建此方法:

公共函数 findByRole(string $role): 数组{//ResultSetMapping 将 SQL 结果映射到实体$rsm = $this->createResultSetMappingBuilder('s');$rawQuery = sprintf('选择 %s来自薪水WHERE/* 你的 WHERE 子句取决于 DBMS */',$rsm->generateSelectClause());$query = $this->getEntityManager()->createNativeQuery($rawQuery, $rsm);$query->setParameter('role', $role);返回 $query->getResult();}

然后你需要根据DBMS替换我放在WHERE子句中的注释:

MariaDB - JSON_SEARCH():

SELECT %s来自薪水WHERE JSON_SEARCH(s.roles, 'one', :role) 不是 NULL

MySQL - JSON_CONTAINS():

SELECT %s来自薪水WHERE JSON_CONTAINS(s.roles, :role, '$')

<块引用>

警告:您必须用双引号将 role 参数括起来:

$query->setParameter('role', sprintf('"%s"', $role));

PostgreSQL - jsonb 转义了?";运算符:

SELECT %s来自薪水WHERE s.roles::jsonb ??:角色

<块引用>

警告:需要 PHP 7.4+.请参阅RFC

I am doing a small project where I have an entity with a roles property which consists of an array.

What I am trying to do is, in some controller, find an existing entity which has a specific role inside of the roles array.

I am trying to use the findOneBy() method, but I can't seem to make it work, it always returns null even though entities with the specific role I'm trying to find exist.

Here is my entity and its properties:

/**
 * @ORM\Entity(repositoryClass=SalarieRepository::class)
 */
class Salarie
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $nom;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $prenom;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $email;

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    private $telephone;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $service;

    /**
     * @ORM\Column(type="json")
     */
    private $roles = [];

    // Getters & setters
}

And here is an example of something I tried with findOneBy() inside a controller, that returns null:

$rolecheck = $this->salarieRepository->findOneBy(["roles" => ["ROLE_RESPONSABLE_RH"]]);

When I try with any other property of the entity which isn't an array it works well, if I do something like this:

$rolecheck = $this->salarieRepository->findOneBy(["nom" => "test"]);
dd($rolecheck);

It will show the right entity :

SalarieController.php on line 47:
App\Entity\Salarie {#1501 ▼
  -id: 6
  -nom: "test"
  -prenom: "test"
  -email: "[e-mail]"
  -telephone: null
  -service: "Graphisme"
  -roles: array:3 [▼
    0 => "ROLE_RESPONSABLE_RH"
    1 => "ROLE_RESPONSABLE_SERVICE"
    2 => "ROLE_SALARIE"
  ]
}

Where we can also see it does have the roles array with the role I'm trying to find inside it.

Any clues on how I could try to find one entity which has the specific role "ROLE_RESPONSABLE_RH"?

解决方案

Your $roles property is of type json, which means it is stored as this in your database:

["ROLE_RESPONSABLE_RH", "ROLE_RESPONSABLE_SERVICE", "ROLE_SALARIE"]

You need to ask Doctrine if the JSON array contains the role, but you can't do that with the findOneBy() method.

When you hit the ORM limitations you can use a Native Query with ResultSetMapping. It allows you to write a pure SQL query using specific features of your DBMS but still get entity objects.

Create this method in your SalarieRepository class:

public function findByRole(string $role): array
{
    // The ResultSetMapping maps the SQL result to entities
    $rsm = $this->createResultSetMappingBuilder('s');

    $rawQuery = sprintf(
        'SELECT %s
        FROM salarie s 
        WHERE /* your WHERE clause depending on the DBMS */',
        $rsm->generateSelectClause()
    );

    $query = $this->getEntityManager()->createNativeQuery($rawQuery, $rsm);
    $query->setParameter('role', $role);
    return $query->getResult();
}

Then you need to replace the comment I put in the WHERE clause depending on the DBMS:

MariaDB - JSON_SEARCH():

SELECT %s
FROM salarie s 
WHERE JSON_SEARCH(s.roles, 'one', :role) IS NOT NULL

MySQL - JSON_CONTAINS():

SELECT %s
FROM salarie s 
WHERE JSON_CONTAINS(s.roles, :role, '$')

Warning: you must enclose the role parameter with double quotes:

$query->setParameter('role', sprintf('"%s"', $role));

PostgreSQL - jsonb escaped "?" operator:

SELECT %s
FROM salarie s 
WHERE s.roles::jsonb ?? :role

Warning: will require PHP 7.4+. See the RFC

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