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我将 Doctrine 2 与 CodeIgniter 2 一起使用,基本上我想实现这样的目标:

 $product = $this->doctrine->em->find("Entities\Product", 1)
 $feature = new Entities\Feature;
 $feature->setName("foo");

 $product->addFeature($feature);

 $this->doctrine->em->persist($product);
 $this->doctrine->em->flush();

持久化特征对象时,会添加到数据库中,但 product_id 设置为 null。如何让学说自动设置外键。

我使用以下 YAML 标记通过教义命令行工具创建了我的类和表

Entities\Product:
  type: entity
  table: products
  id:
    id:
      type: integer
      generator:
        strategy: AUTO
  fields:
    name:
      type: string
      length: 50
  oneToMany:
    features:
      targetEntity: Feature
      mappedBy: product
      cascade: ["persist"]



Entities\Feature:
  type: entity
  table: features
  id:
    id:
      type: integer
      generator:
        strategy: AUTO
  fields:
    name:
      type: string
      length: 50
  manyToOne:
    product:
      targetEntity: Product
      inversedBy: features
      joinColumn:
        name: product_id
        referencedColumnName: id

编辑:

当然我可以通过更改 Product.php 中的 addFeature 方法来解决这个问题

public function addFeature(\Entities\Feature $features)
{
       $features->setProduct($this);
       $this->features[] = $features;
       return $this;
}

但是由于这应该在不接触代码的情况下工作,我猜我的 YAML 标记/数据库设置有问题

4

1 回答 1

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“在多对一关系中,默认情况下,多方是拥有方,因为它拥有外键。”

请参考此链接

于 2013-09-25T20:41:31.157 回答