Question

在坚持一对多关系时，我从Doctrine收到错误。我在这里看到过类似的问题，但不幸的是答案没有帮助。

这是错误：

<b>Fatal error</b>:  Uncaught exception 'Doctrine\ORM\ORMInvalidArgumentException' with message 'Expected value of type &quot;Doctrine\Common\Collections\Collection|array&quot; for association field &quot;Entities\Scripts#$ScriptsVersions&quot;, got &quot;Entities\ScriptsVersions&quot; instead.' in H:\SERVER\htdocs\10pages\www\php\Vendors\doctrine\orm\lib\Doctrine\ORM\ORMInvalidArgumentException.php:206

定义：

/**  
     *  @OneToMany(targetEntity="Scripts", mappedBy="ScriptsVersions",cascade={ "persist","remove"} ) 
    **/
    protected $ScriptsVersions;

构造

public function __construct() {
$this->ScriptsVersions = new \Doctrine\Common\Collections\ArrayCollection();

    }

设置器：

public function setScriptsVersions(ScriptsVersions $ScriptsVersions){
        if(!$this->ScriptsVersions->contains($ScriptsVersions)){
            $this->ScriptsVersions[] = $ScriptsVersions;
            $ScriptsVersions->setScripts($this);
        }
    }

如果在分配之后转储$ this-＆gt; ScriptsVersions类，它会显示Doctrine\Common\Collections\Collection，但UnityOfWork会以某种方式获取对象而不是ArrayCollection ......

Answer 1

正如我在评论中提到的那样 - 您粘贴的代码中的private void Loop() { while (threadRunning) { BeginInvoke(new MethodInvoker(() => timeLabel.Text = DateTime.Now.ToString())); Thread.Sleep(100); } } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { threadRunning = false; thread.Join(); }并未指向正确的实体类。很高兴我可以帮忙:)。

具有一对多的Doctrine ArrayCollection会引发错误

1 个答案: