Symfony2 Doctrine association deletion problem

Question

Entity NotifyOrderCreate

/**
 * @ORM\Column(type="bigint",options={"unsigned"=true})
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @ORM\OneToOne(targetEntity="Order", inversedBy="notifyCreate",cascade={"persist"})
 * @ORM\JoinColumn(name="order_id", referencedColumnName="id",onDelete="CASCADE")
 **/
private $order;

Entity Order

/**
 * @ORM\Column(type="bigint",options={"unsigned"=true})
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @ORM\OneToOne(targetEntity="NotifyOrderCreate", mappedBy="order")
 **/
private $notifyCreate;

Find out that NotifyOrderCreate will also delete the order when executing remove. Please tell me how to break it.

Answer 1

I don’t understand how to write comments. Given below is the yml code:

oneToOne:
    order:
        targetEntity: SomeEntity
        joinColumn:
            name: some_id
            referencedColumnName: pk_id
            nullable: true
            onDelete: SET NULL

This way of writing will set the field to NULL when deleting.