Question

概述

我有两个实体;

元素
ElementAnswer

Element具有自引用关系，ElementAnswer与Element具有一对多关系（一个元素可以有多个ElementAnswers）。

我正在使用带有嵌入式集合的Symfony2，它正在运行（与javasript一起）。我可以添加多个孩子＆＃39;父母的元素＆＃39;元件。我也可以为子元素添加多个答案。但是..当我添加一个子元素并添加子元素的答案时，只有子元素被持久化。答案（这是对子元素的嵌入式集合）不会被持久化。当我编辑整个集合时，答案会持续存在。为了更精确，我做了一些截图，我调试了帖子数据。这是完全一样的。

的ElementType：

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('name')
        ->add('question')
        //->add('answers')
        ->add('answers', 'collection', array(
            'entry_type' => new AnswerType(),
            'allow_add' => true,
            'by_reference' => false,
            'allow_delete' => true,
            'empty_data' => null,
        ))
        ->add('conditions', 'collection', array(
            'entry_type' => new ConditionalType(),
            'allow_add' => true,
            'by_reference' => false,
            'allow_delete' => true,
            'empty_data' => null,
        ))
        //->add('children', )
        ->add('children', 'collection', array(
            'entry_type' => new ElementChildType(),
            'allow_add' => true,
            'by_reference' => false,
            'allow_delete' => true,
            'empty_data' => null,
        ))


    ;
}

ElementChildType：

    public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('name')
        ->add('answers', 'collection', array(
            'entry_type' => new AnswerType(),
            'allow_add' => true,
            'by_reference' => false,
            'allow_delete' => true,
            'empty_data' => null,
            'block_name' => 'child_element_answer',
            'prototype_name' => '__child_element_answer__',
        ))
    ;
}

这是我提交之前表单的样子：（子元素1和2已经保留。子元素3是表单中新添加的实体这是帖子数据：

element[name]:parent-element-name
element[question]: blabla
element[children][0][name]:child element 1
element[children][0][answers][0][name]:child answer 1-1
element[children][1][name]:child element 2
element[children][1][answers][0][name]:child answer 2-1
element[children][2][name]:child element 3
element[children][2][answers][0][name]:child answer 3-1
element[_token]:xxxxxxxxxxxxxxxxxxxxxxxxxxxx

这是提交后表单的样子：（如您所见：子元素3中没有子代答案）

当我现在添加一个孩子答案（提交后）时，孩子的答案会被持久化。正在调用相同的控制器和相同的实体，所以我被卡住了。请帮忙。谢谢！

修改

我终于按照以下方式编辑了我的控制器。可能不是最好的做法，但它正在工作，所以我想我应该让你知道：

    /**
 * Displays a form to edit an existing Element entity.
 *
 * @Route("/{id}/edit", name="element_edit")
 * @Method({"GET", "POST"})
 */
public function editAction(Request $request, Element $element, $firstPost = NULL)
{
    $em = $this->getDoctrine()->getManager();

    $deleteForm = $this->createDeleteForm($element);
    $editForm = $this->createForm('AppBundle\Form\ElementType', $element);
    $editForm->handleRequest($request);

    $breadcrumbs = array();
    $breadcrumbs[] = array("name" => "Dashboard", "url" => $this->get("router")->generate("dashboard"));
    $breadcrumbs[] = array("name" => "Elementen lijst", "url" => $this->get("router")->generate("element_index"));
    $breadcrumbs[] = array("name" => "Element bewerken");

    if ($editForm->isSubmitted() && $editForm->isValid()) {

        $originalChildren = new ArrayCollection();
        $postChildren = new ArrayCollection();
        $newChildren = new ArrayCollection();

        foreach ($element->getChildren() as $child) {
            $originalChildAnswers = new ArrayCollection();
            $originalChildren->add($child);
            foreach ($child->getAnswers() as $childAnswer) {
                $originalChildAnswers->add($childAnswer);
            }

        }

        if (isset($request->request->get('element')['children'])) {
            foreach ($request->request->get('element')['children'] as $postChild) {
                $postChildren->add($postChild);
            }
        }

        $newElements = [];
        $i = 0;
        foreach ($originalChildren as $child) {

            if (null != $child->getId() && $element->getChildren()->contains($child)) {
                $i++;
            } else {
                $newElements[] = $i;
                $i++;
            }
        }

        foreach ($newElements as $newElement) {
            $newChildren->set($newElement, $postChildren[$newElement]);
        }

        foreach ($newChildren as $key => $newchild) {
            foreach ($newchild['answers'] as $newChildAnswer) {
                $childAnswerKey = $element->getChildren()->getKeys()[$key];
                $answerEntity = new Answer();
                $answerEntity->setName($newChildAnswer['name']);
                $element->getChildren()[$childAnswerKey]->addAnswer($answerEntity);

            }
        }

        $em->persist($element);
        $em->flush();

        return $this->redirectToRoute('element_edit', array('id' => $element->getId()));

    }


    return $this->render('element/edit.html.twig', array(
        'breadcrumbs' => $breadcrumbs,
        'element' => $element,
        'edit_form' => $editForm->createView(),
        'delete_form' => $deleteForm->createView(),
    ));
}

Symfony2：在自引用嵌入式集合中保持嵌入式集合

概述

0 个答案: