我有以下课程(仅显示部分以减少阅读量)
class Page {
/**
* @ORM\Column(type="string", unique=true, nullable=false)
* @ORM\Id
* @ORM\GeneratedValue(strategy="UUID")
* @var string
*/
protected $id;
/**
* @ORM\OneToMany(targetEntity="Url", mappedBy="content")
* @var Url[]
*/
protected $urls;
public function __construct()
{
$this->urls = new ArrayCollection();
}
}
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和:
class Url
{
/**
* @ORM\Id @ORM\Column(type="string", unique=true, nullable=false)
* @ORM\GeneratedValue(strategy="UUID")
* @var string The unique identifier for the Url
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="Page", inversedBy="urls", cascade={"persist", "merge"})
* @ORM\JoinColumn(name="content_id", referencedColumnName="id")
* @var int The UUID of the content …Run Code Online (Sandbox Code Playgroud)