级联持续不起作用(Doctrine ORM + Symfony 2)

Question

几个月前我开始使用symfony,有一件事一直困扰着我.当我在Doctrine中有一对多的关系时,我尝试在数据库中插入一些东西.这是一个例子:

Broker.orm.yml

Acme\DemoBundle\Entity\Broker:
    type: entity
    table: brokers
    repositoryClass: BrokerRepository
    id:
        id:
            type: integer
            generator: { strategy: AUTO }
    fields:
        name:
            type: string
            length: 255
        slug:
            type: string
            length: 64
    oneToMany:
        accountTypes:
            targetEntity: Acme\DemoBundle\Entity\AccountType
            mappedBy: broker
            cascade: ["persist"]

AccountType.orm.yml

Acme\DemoBundle\Entity\AccountType:
    type: entity
    table: account_types
    repositoryClass: AccountTypeRepository
    id:
        id:
            type: integer
            generator: { strategy: AUTO }
    fields:
        name:
            type: string
            length: 255
        slug:
            type: string
            length: 64
    manyToOne:
        broker:
            targetEntity: Acme\DemoBundle\Entity\Broker
            inversedBy: accountTypes
            joinColumn:
                name: broker_id
                referencedColumn: id

然后尝试将其保存到数据库中.

$accountType = new AccountType();
$accountType->setName("blabla");
// additional data to accountType

$broker->addAccountType($accountType);

$em->persist($broker);
$em->flush();

奇怪的是,它只能在一个小问题上正常工作.Broker已更新,AccountType已插入数据库,但accountType与Broker没有任何关系.换句话说,当我在数据库中检查时,broker_id字段重新保持不变并包含NULL.

如果我$accountType->setBroker($broker)手动添加,它可以工作.但是我开始使用Sonata Admin Bundle,这样做要复杂得多,我真的不需要复杂的管理系统.所以我只想快速开发它而没有这个"功能"它几乎是不可能的.

无论如何,如果我将一些东西添加到一个Object的集合中,它应该知道哪个对象是它的父对象,对吧？:)

感谢您的帮助!

Answer 1

class Broker
{
    public function addAccountType($accountType)
    {
        $this->accountTypes[] = $accountType;

        // *** This is what you are missing ***
        $accountType->setBroker($this);