【发布时间】:2015-09-30 13:27:44
【问题描述】:
我正在为一些 symfony 2 表单问题苦苦挣扎。尝试保存我的表单时,我收到以下消息:
通过关系发现了一个新实体 'Org\CoreBundle\Entity\CustomLists#customListElements' 不是 配置为实体级联持久化操作: 组织\CoreBundle\Entity\CustomListElement@000000007db26fee000000007e19f46a。 要解决这个问题:要么显式调用 EntityManager#persist() 这个未知实体或配置级联将这个关联保持在 例如@ManyToOne(..,cascade={"persist"}) 的映射。
我已经在集合元素上调用了 persist() 方法,并在我的实体中添加了 cascade={"persist"},这是在类似线程中推荐的,但没有帮助。
CustomLists.php:
/**
* @var \Doctrine\Common\Collections\Collection
* @ORM\OneToMany(targetEntity="CustomListElement", mappedBy="customList", cascade={"persist"})
*/
private $customListElements;
/**
* Add customListElement
*
* @param \Org\CoreBundle\Entity\CustomListElement $customListElement
*
* @return CustomLists
*/
public function addCustomListElement(\Org\CoreBundle\Entity\CustomListElement $customListElement)
{
$this->customListElements[] = $customListElement;
return $this;
}
/**
* Remove customListElement
*
* @param \Org\CoreBundle\Entity\CustomListElement $customListElement
*/
public function removeCustomListElement(\Org\CoreBundle\Entity\CustomListElement $customListElement)
{
$this->customListElements->removeElement($customListElement);
}
CustomListElement.php:
/**
*
* @ORM\ManyToOne(targetEntity="CustomLists", inversedBy="customListElements", cascade={"persist"})
* @ORM\JoinColumn(name="custom_list", referencedColumnName="id_custom_list", nullable=false)
*/
private $customList;
/**
* Set customList
*
* @param \Org\CoreBundle\Entity\CustomLists $customList
*
* @return CustomListElement
*/
public function setCustomList(\Org\CoreBundle\Entity\CustomLists $customList = null)
{
$this->customList = $customList;
return $this;
}
CustomListType.php:
$builder->add('customListElements', 'collection', array(
'type' => new CustomListElementType(),
'label' => false,
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
'attr' => array('class' => 'form-control')
));
控制器:
if ($form->isValid()) {
$data = $form->getData();
$customListElements = $data->getCustomListElements();
foreach($customListElements as $element){
$element->setCustomList($data);
$em->persist($element);
$em->flush();
}
$em->persist($data);
$em->flush();
}
我真的不知道,我做错了什么。我会非常感谢任何有用的答案。
编辑: 这是我的表单代码:
{% extends 'OrganizerBundle::layout.html.twig' %}
{% block title %}{{ title }}{% endblock %}
{% block header %}
{{ parent() }}
{% endblock %}
{% block content %}
<div class="col col-md-8">
<div class="panel panel-success custom-list-form">
<div class="panel-heading">
<h3 class="panel-title">{{ title }}</h3>
</div>
<div class="panel-body">
{{ form_start(form) }}
{{ form_row(form.listName) }}
<h3>Elementy</h3>
<ul class="elements"
data-prototype="{% filter escape %}{% include 'OrganizerBundle:CustomLists:elementTemplate.html.twig' %}{% endfilter %}">
{% for tag in form.customListElements %}
<li>
<div class="custom-list-element">
<div id="customList_customListElements___name__">
<div>
{{ form_row(tag.elementName) }}
</div>
<div>
{{ form_row(tag.elementDescription) }}
</div>
<input type="hidden" id="customList_customListElements___name___elementOrder"
name="customList[customListElements][__name__][elementOrder]" />
</div>
<div class="element-buttons">
<i class="fa fa-times remove-element" title="{{ 'Usuń'|trans }}" data-placement="left" data-toggle="tooltip"></i>
</div>
</div>
</li>
{% endfor %}
</ul>
{% do form.customListElements.setRendered %}
<div class="form-buttons">{{ form_widget(form.zapisz) }}</div>
{{ form_end(form) }}
</div>
</div>
</div>
<script>
var $collectionHolder;
var addElemText = '{{ 'Dodaj element'|trans }}';
var $newElementButton = $('<a href="#" class="add_element_link"><button type="button" class="btn btn-primary btn-sm">'+
addElemText +'</button></a>');
var $newLinkLi = $('<li></li>');
jQuery(document).ready(function() {
$collectionHolder = $('.elements');
$newElementButton.insertBefore($collectionHolder);
$collectionHolder.data('index', $collectionHolder.find(':input').length);
$newElementButton.on('click', function(e) {
e.preventDefault();
addElementForm($collectionHolder, $newLinkLi);
});
function addElementForm($collectionHolder, $newLinkLi) {
var prototype = $collectionHolder.data('prototype');
var index = $collectionHolder.data('index');
var newForm = prototype.replace(/__name__/g, index);
$collectionHolder.data('index', index + 1);
var $newFormLi = $('<li></li>').append(newForm);
$collectionHolder.append($newFormLi);
}
});
</script>
{% endblock %}
还有我的 elementTemplate.html.twig 原型模板:
<div class="listBox" data-pk="{{ element.idCustomList }}">
<input type="checkbox" class="list-checkbox"/>
<div class="custom-list-name">{{ element.listName }}</div>
<div class="list-elem-count">{{ 'elementów:'|trans ~ '...' }}</div>
<div class="list-elem-created">
<span class="created-text">{{ 'utworzono:'|trans }}</span>
<div class="date-created">{{ '...' }}</div>
</div>
</div>
编辑 2:
我在doctrine:schema:validate做的时候,也报错:
[映射] FAIL - 实体类 'Org\CoreBundle\Entity\CustomLists' 映射无效: * 字段 Org\CoreBundle\Entity\CustomLists#customListElements 位于双向关系的反面,但指定 目标实体上的 mappedBy 关联 Org\CoreBundle\Entity\CustomListElement#customList 不包含 所需的 'inversedBy="customListElements"' 属性。
【问题讨论】:
-
如果您使用的是
mappedBy,则需要指定inversedBy。这可以解释这个问题。并尝试在您的addCustomListElement()中添加$customListElement->setCustomList($this),即使没有必要,这也是一种很好的做法。 -
此外,每个请求几乎不需要超过一个 flush()。如果您在持久化/刷新新的 CustomList 之前刷新 CustomListElements,那么 Doctrine 将没有 CustomList ID 可以放在 CustomListElements 表中。
标签: symfony doctrine-orm