Php Symfony2在删除时级联

我有两个实体：

仓库

  id | name           
  ---------------------
  1  | Warehouse 1
  2  | Warehouse 2

项目

  id | warehouse_id   | name
  --------------------------------------
  1  | 1              |  Item 1
  2  | 2              |  Item 2

我想知道如果我从仓库表中删除“warehouse 1”，如何将warehouse_id的值设置为Null。实际上，如果我删除“warehouse 1”，我需要在数据库中的所有表上将warehouse_id设置为NULL

例如，在我的“Items”实体中，我设置了这个选项，当我删除“warehouse1”时，它似乎对我没有任何作用

这是我的完整仓库实体

这里有什么我需要设置的吗

 /**
 * @var integer
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var string
 * @ORM\Column(name="name", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="Location Name cannot be blank.")
 */
private $name;

/**
 * @var string $description
 *
 * @Common\Versioned
 * @ORM\Column(name="description", type="text")
 */
protected $description;

/**
 * @var string
 * @ORM\Column(name="address", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="Address cannot be blank.")
 */
private $address;

/**
 * @var string
 * @ORM\Column(name="address2", type="string", length=255, nullable=true)
 * @Common\Versioned
 */
private $address2;

/**
 * @var string
 * @ORM\Column(name="city", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="City cannot be blank.")
 */
private $city;

/**
 * @var string
 * @ORM\Column(name="state", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="State cannot be blank.")
 */
private $state;

/**
 * @var string
 * @ORM\Column(name="zip", type="string", length=255)
 * @Gedmo\Versioned
 * @Assert\NotBlank(message="Zip cannot be blank.")
 */
private $zip;

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

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

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

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

/**
 * @ORM\OneToMany(targetEntity="WIC\InventoryLocationBundle\Entity\InventoryLocation", mappedBy="inventoryLocation")
 */
protected $inventoryLocations;

/**
 * @ORM\ManyToOne(targetEntity="WIC\UserBundle\Entity\User")
 * @ORM\JoinColumn(name="created_by", referencedColumnName="id")
 * @Common\Blameable(on="create")
 */
private $createdBy;

/**
 * @ORM\ManyToOne(targetEntity="WIC\UserBundle\Entity\User")
 * @ORM\JoinColumn(name="updated_by", referencedColumnName="id")
 * @Common\Blameable(on="update")
 */
private $updatedBy;

/**
 * @ORM\ManyToOne(targetEntity="WIC\AccountBundle\Entity\Account", inversedBy="warehouses")
 * @ORM\JoinColumn(name="account_id", referencedColumnName="id", nullable=false)
 * @Common\Versioned
 * @Common\Blameable(on="create")
*/
protected $account;

/**
 * @var datetime $created
 *
 * @Common\Timestampable(on="create")
 * @ORM\Column(type="datetime")
 */
private $created;

/**
 * @var datetime $updated
 *
 * @Common\Timestampable(on="update")
 * @ORM\Column(type="datetime", nullable=true)
 */
private $updated;

/**
 * @ORM\Column(name="deletedAt", type="datetime", nullable=true)
 */
private $deletedAt;


public function __construct()
{
    $this->inventoryLocations = new ArrayCollection();
}

---

您最好将其保留为限制删除，然后使用doctrine事件订阅服务器将引用设置为null

---

这将使您能够更好地控制流程，并让您了解应用程序正在做什么。当涉及到数据破坏时，尽量不要让框架自行行动，否则您将在应用程序中开始创建难以诊断的漏洞。

可能重复我已经尝试过，onDelete=“SET NULL”但我似乎无法使其工作。是的，但您更新了模式吗？是的，然后我尝试删除一个仓库，但该项目的仓库id没有设置为null。

 /**
 * @var integer
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var string
 * @ORM\Column(name="name", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="Location Name cannot be blank.")
 */
private $name;

/**
 * @var string $description
 *
 * @Common\Versioned
 * @ORM\Column(name="description", type="text")
 */
protected $description;

/**
 * @var string
 * @ORM\Column(name="address", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="Address cannot be blank.")
 */
private $address;

/**
 * @var string
 * @ORM\Column(name="address2", type="string", length=255, nullable=true)
 * @Common\Versioned
 */
private $address2;

/**
 * @var string
 * @ORM\Column(name="city", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="City cannot be blank.")
 */
private $city;

/**
 * @var string
 * @ORM\Column(name="state", type="string", length=255)
 * @Common\Versioned
 * @Assert\NotBlank(message="State cannot be blank.")
 */
private $state;

/**
 * @var string
 * @ORM\Column(name="zip", type="string", length=255)
 * @Gedmo\Versioned
 * @Assert\NotBlank(message="Zip cannot be blank.")
 */
private $zip;

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

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

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

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

/**
 * @ORM\OneToMany(targetEntity="WIC\InventoryLocationBundle\Entity\InventoryLocation", mappedBy="inventoryLocation")
 */
protected $inventoryLocations;

/**
 * @ORM\ManyToOne(targetEntity="WIC\UserBundle\Entity\User")
 * @ORM\JoinColumn(name="created_by", referencedColumnName="id")
 * @Common\Blameable(on="create")
 */
private $createdBy;

/**
 * @ORM\ManyToOne(targetEntity="WIC\UserBundle\Entity\User")
 * @ORM\JoinColumn(name="updated_by", referencedColumnName="id")
 * @Common\Blameable(on="update")
 */
private $updatedBy;

/**
 * @ORM\ManyToOne(targetEntity="WIC\AccountBundle\Entity\Account", inversedBy="warehouses")
 * @ORM\JoinColumn(name="account_id", referencedColumnName="id", nullable=false)
 * @Common\Versioned
 * @Common\Blameable(on="create")
*/
protected $account;

/**
 * @var datetime $created
 *
 * @Common\Timestampable(on="create")
 * @ORM\Column(type="datetime")
 */
private $created;

/**
 * @var datetime $updated
 *
 * @Common\Timestampable(on="update")
 * @ORM\Column(type="datetime", nullable=true)
 */
private $updated;

/**
 * @ORM\Column(name="deletedAt", type="datetime", nullable=true)
 */
private $deletedAt;


public function __construct()
{
    $this->inventoryLocations = new ArrayCollection();
}