Doctrine orm 通过关系-错误找到了新实体

我试图建立两个表的简单关联。但我总是犯以下错误：

通过关系“Shopware\CustomModels\JoeKaffeeAbo\Client\abos”找到了一个新实体，该关系未配置为级联实体的持久化操作：Shopware\CustomModels\JoeKaffeeAbo\Abo@00000000211b173900000000cf7658ac

以下是我的模型：

<?php
namespace Shopware\CustomModels\JoeKaffeeAbo;

use Symfony\Component\Validator\Constraints as Assert,
Doctrine\Common\Collections\ArrayCollection,
Shopware\Components\Model\ModelEntity,
Doctrine\ORM\Mapping AS ORM;


/**
 * @ORM\Entity
 * @ORM\Table(name="joe_kaffee_abo_abos")
 */
class Abo extends ModelEntity
{

    public function __construct() {
        $client = new ArrayCollection();
    }

    /**
     * Unique identifier
     *
     * @var integer
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    protected $id;



    /**
     * @ORM\ManyToMany(targetEntity="Shopware\CustomModels\JoeKaffeeAbo\Client",     inversedBy="abos", cascade={"persist", "remove"})
     **/
    protected $clients;

    /**
     * @var string
     * @ORM\Column(name="name", type="string", length=255, nullable=true)
     */
    protected $name = '';

    /**
     * @var string
     * @ORM\Column(name="desc", type="string", length=255, nullable=true)
     */
    protected $desc = '';


    /**
     * @var string
     * @ORM\Column(name="name_en", type="string", length=255, nullable=true)
     */
    protected $name_en = '';

    /**
     * @var string
     * @ORM\Column(name="desc_en", type="string", length=255, nullable=true)
     */
    protected $desc_en = '';


    //getter and setters...
}
?>

---

这说明您需要在保存客户机之前保存Abo实体

$abo = new Abo();       
$abo->setName("name");
$abo->setDesc("desc");
$abo->setName_en("name");
$abo->setDesc_en("desc");
Shopware()->Models()->persist($abo); //Persist the Abo before assigning it to the client

$client->addAbo($abo);
//$abo->addClient($client);
//$client->addAbo($abo);

Shopware()->Models()->persist($client);
//Shopware()->Models()->persist($abo);
Shopware()->Models()->flush();

$client = new Client();
$client->setCustomerid(12);
$client->setCustomernumber(12);
$client->setIs_active(true);
Shopware()->Models()->persist($client);

$abo = new Abo();       
$abo->setName("name");
$abo->setDesc("desc");
$abo->setName_en("name");
$abo->setDesc_en("desc");

$client->addAbo($abo);
//$abo->addClient($client);
//$client->addAbo($abo);

Shopware()->Models()->persist($client);
//Shopware()->Models()->persist($abo);
Shopware()->Models()->flush();

$abo = new Abo();       
$abo->setName("name");
$abo->setDesc("desc");
$abo->setName_en("name");
$abo->setDesc_en("desc");
Shopware()->Models()->persist($abo); //Persist the Abo before assigning it to the client

$client->addAbo($abo);
//$abo->addClient($client);
//$client->addAbo($abo);

Shopware()->Models()->persist($client);
//Shopware()->Models()->persist($abo);
Shopware()->Models()->flush();