从学说中删除集合中的项目

时间:2018-08-15 15:45:20

标签: symfony doctrine formcollection

我正在使用Symfony 3.x和Doctrine。我有一个与QuoteItem实体关联的集合实体quoteItemAdditionalWork。我有另一个名为WorkOrder的实体。 WorkOrder实体是WorkOrderType表单的指定data_class。在WorkOrderType表单上,我需要包括QuoteItem实体中的表单元素作为未映射的表单字段(每个表单类型-symfony规则一个data_class)。表单集合quoteItemAdditionalWork是WorkOrderType表单中包含的表单字段之一,由于quoteItemAdditionalWork与WorkOrder没有实体关联,因此在表单上没有映射。

public function buildForm (FormBuilderInterface $builder, array $options)
{
    $builder->add('quoteItemAdditionalWorks', CollectionType::class, [
        'data'          => $quoteItem->getQuoteItemAdditionalWorks(),
        'label'         => false,
        'mapped'        => false,
        'entry_type'    => QuoteItemAdditionalWorkType::class,
        'entry_options' => ['label' => false],
        'by_reference'  => false,
        'allow_add'     => true,
        'allow_delete'  => true,
        'prototype'     => true,
    ]);
}

表单收集在表单上可以正常工作,但是在提交并尝试从控制器中的学说实体中删除收集项时,这些项不会被删除。删除项目的控制器代码如下

$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
    $em = $this->getDoctrine()->getManager();

    $quoteItem->setDrawingNumber($form->get('drawingNumber')->getData());
    $quoteItem->setDrawingRevision($form->get('drawingRevision')->getData());

    $updatedAdditionalWorkItems = $form->get('quoteItemAdditionalWorks')->getData()->unwrap();
    foreach ($quoteItem->getQuoteItemAdditionalWorks() as $existingAdditionalWorkItem) {
        if (false === $updatedAdditionalWorkItems->contains($existingAdditionalWorkItem)) {
            $em->remove($existingAdditionalWorkItem);
        }
    }

    $em->persist($quoteItem);
    $em->persist($workOrder);

    $em->flush();
}

我不知道这是我在symfony还是教义中做错了什么。从未映射的表单集合字段中的集合中删除项目时,我该怎么做?

1 个答案:

答案 0 :(得分:1)

请尝试这个

foreach ($quoteItem->getQuoteItemAdditionalWorks() as $existingAdditionalWorkItem) 
{
    if (false === $updatedAdditionalWorkItems->contains($existingAdditionalWorkItem))
        {
            $quoteItem->getQuoteItemAdditionalWorks()->removeElement($existingAdditionalWorkItem);
            $em->remove($existingAdditionalWorkItem);
        }
}