Doctrine orm 通过关系找到了新实体？

我有一个句柄代码

if ($this->request->isMethod('POST') && $valid) {
            $em = $this->getDoctrine()->getManager();
            $formData = $form->getData();
            $staffValue = $formData['staff'];
            $campaignDetailFilter = $modelCampaignDetail->getRepository()->countDataByCampaignDetailId($formData['campaignDetail']);
            $total         = count($campaignDetailFilter);
            $totalStaff = count($formData['staff']);

            foreach ($campaignDetailFilter as $valDetailId) {
                $detailDataEntity = $modelDetailData->getEntity($valDetailId['id']);
                $batchSize = $total / $totalStaff;
                $i = 0;
                foreach ($staffValue as $staffVal) {
                    $detailDataEntity->setStaff($staffVal);
                    $em->persist($detailDataEntity);
                    if (($i % $batchSize) === 0) {
                        $em->flush();
                        $em->clear();
                    }
                    ++$i;
                }
                $em->flush();
                $em->clear();
            }
        }

---

但当我给$I=0时，它会得到一个错误：通过关系找到了一个新实体…该实体未配置为级联实体的持久化操作

您应该删除$em->clear（）

---

谢谢兄弟。我还有一个问题。请帮帮我。例如，在变量“$staffVal”中，我有两个雇员（id:2，id:3）。对于那两名雇员，我有十行要求平分。但当我：$detailDataEntity->setStaff（$staffVal）时，它就被设置了（id:3）。我做错了。请帮帮我@n2k您可以尝试：$employee=$em->getRepository（Employees:：class）->find（$staffVal）$detailDataEntity->setStaff（$employee）；

if (($i % $batchSize) === 0) {
     $em->flush();
}