我想序列化和反序列化具有依赖性的实体,但我无法序列化与抽象类有关的元素。
层次结构:
测试 - >几个Calls
其中Call
类是一个抽象类,并由TestCallExecuteQuery
扩展(与$conditions
相同的问题)
Test.php:
/**
* @ORM\Entity(repositoryClass="Gedmo\Sortable\Entity\Repository\SortableRepository")
* @ORM\Table(name="cfa_test")
* @JMSSer\ExclusionPolicy("all")
*/
class Test
{
/**
* @ORM\OneToMany(targetEntity="TestCall", mappedBy="test", cascade={"all"}, orphanRemoval=true)
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
* @JMSSer\Type("ArrayCollection<App\Bundle\CapFileAnalyzerBundle\Entity\TestCall>")
*/
protected $calls;
/**
* @ORM\OneToMany(targetEntity="TestCondition", mappedBy="test", cascade={"all"}, orphanRemoval=true)
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
* @JMSSer\Type("ArrayCollection<App\Bundle\CapFileAnalyzerBundle\Entity\TestCondition>")
*/
protected $conditions;
TestCall.php:
/**
* @ORM\Entity
* @ORM\InheritanceType("SINGLE_TABLE")
* @ORM\Table(name="cfa_test_call")
* @ORM\DiscriminatorColumn(name="type", type="string")
* @ORM\DiscriminatorMap({
* "executeQuery" = "App\Bundle\CapFileAnalyzerBundle\Entity\TestCallExecuteQuery",
* "call" = "App\Bundle\CapFileAnalyzerBundle\Entity\TestCall"
* })
* @JMSSer\ExclusionPolicy("all")
* @JMSSer\Discriminator(field="serializedType", map={
* "executeQuery"="App\Bundle\CapFileAnalyzerBundle\Entity\TestCallExecuteQuery",
* "call" = "App\Bundle\CapFileAnalyzerBundle\Entity\TestCall"
* })
*/
abstract class TestCall
{
/**
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
*/
protected $type = 'call';
/**
* @ORM\Id
* @ORM\Column(name="id", type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="Test", inversedBy="calls")
*/
protected $test;
/**
* @JMSSer\VirtualProperty()
* @JMSSer\SerializedName("serializedType")
*/
public function getDiscr()
{
return $this->type;
}
TestCallExecuteQuery.php:
/**
* @ORM\Entity
* @JMSSer\ExclusionPolicy("all")
*/
class TestCallExecuteQuery extends TestCall
{
protected $type = 'executeQuery';
/**
* @ORM\Column(name="`query`", type="text")
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
*/
protected $query;
/**
* @ORM\Column(name="`return`", type="string", nullable=true)
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
*/
protected $return;
所以我按照互联网上的说明进行操作:
@JMSSer\Expose
注释,每个班级都有@JMSSer\ExclusionPolicy("all")
@JMSSer\Discriminator
之上的TestCall
注释与extender类(TestcallExecuteQuery
)进行映射但..当我序列化时,我只获得TestCall的type属性,但query
中没有定义return
或TestCallExecuteQuery
属性:
{"tests":[{"calls":[{"type":"executeQuery"},{"type":"executeQuery"}], ... }
我知道这是可能的,因为我把它们拿到了,但即使把时钟倒转,我也无法再现它。
{"tests":[{"calls":[{"query":"SELECT * FROM table","return":"return_1"}], ... }
编辑:
好的,我可能通过更改query
来获得return
和Test.php
:
/**
* @JMSSer\Type("ArrayCollection<App\Bundle\CapFileAnalyzerBundle\Entity\TestCall>")
*/
protected $calls;
致:
/**
* @JMSSer\Type("ArrayCollection<App\Bundle\CapFileAnalyzerBundle\Entity\TestCallExecuteQuery>")
*/
protected $calls;
我做错了什么?
答案 0 :(得分:0)
好的!几天后我失去理智后找到了一个解决方案!
解决方案是创建两个事件侦听器PreSerialize和PostSerialize 。
首先,我在TestCall.php
(抽象类)中删除了这部分:
/**
* @JMSSer\VirtualProperty()
* @JMSSer\SerializedName("serializedType")
*/
public function getDiscr()
{
return $this->type;
}
并在TestCallExecuteQuery.php
(扩展程序类)中添加了这些注释:
/**
* @JMSSer\Type("string")
* @JMSSer\Expose
* @JMSSer\Groups({"export"})
*/
protected $type = 'executeQuery';
我的听众看起来像这样:
<?php
namespace App\Bundle\CapFileAnalyzerBundle\EventListener;
use JMS\Serializer\EventDispatcher\Events;
use JMS\Serializer\EventDispatcher\EventSubscriberInterface;
use JMS\Serializer\EventDispatcher\ObjectEvent;
use JMS\Serializer\EventDispatcher\PreSerializeEvent;
class JMSSerializerListener implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return [
['event' => Events::PRE_SERIALIZE, 'method' => 'onPreSerialize'],
['event' => Events::POST_SERIALIZE, 'method' => 'onPostSerialize']
];
}
/**
* @param PreSerializeEvent $event
*/
public function onPreSerialize(PreSerializeEvent $event)
{
$object = $event->getObject();
if (is_object($object) &&
is_subclass_of($object, 'App\Bundle\CapFileAnalyzerBundle\Entity\TestCall') &&
get_class($object) !== $event->getType()['name']
) {
$event->setType(get_class($event->getObject()));
}
}
/**
* @param ObjectEvent $event
*/
public function onPostSerialize(ObjectEvent $event){
$object = $event->getObject();
if (is_object($object) &&
is_a($object, 'App\Bundle\CapFileAnalyzerBundle\Entity\TestCallExecuteQuery')) {
$event->getVisitor()->addData("serializedType", $object->getType());
}
}
}
听众宣言:
<?xml version="1.0" ?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<parameters>
<parameter key="cfa.events.jmsserializer_listener.class">App\Bundle\CapFileAnalyzerBundle\EventListener\JMSSerializerListener</parameter>
</parameters>
<services>
<service id="cfa.events.jmsserializer_listener" class="%cfa.events.jmsserializer_listener.class%">
<tag name="jms_serializer.event_subscriber"/>
</service>
</services>
</container>
我解释一下:
如果要序列化的对象是我的抽象类的子类(在我的例子中是TestCall
),我必须强制将事件对象的类型序列化到相关的子类中(TestCallExecuteQuery
在我的情况下)。实际上,传递了正确的对象(TestCallExecuteQuery
),但它与其父类(抽象类TestCall
)
转储$event
对象:
PreSerializeEvent {#977 ▼
-object: TestCallExecuteQuery {#981 ▼
#type: "executeQuery"
#query: "SELECT * FROM table_name"
#return: "return_3"
#id: 2
#test: Test {#948 ▶}
}
#type: array:2 [▼
"name" => "App\Bundle\CapFileAnalyzerBundle\Entity\TestCall"
"params" => []
]
-context: SerializationContext {#420 ▶}
}
如果序列化对象是我的子类,我添加访问者属性(不是虚拟甚至自定义)..
注意:JMSSerializeBundle没有序列化&#34;虚拟&#34;属性直接添加到类中,例如通过类似的方法:
public function createProperty($name, $value) {
$this->{$name} = $value;
}
也许像JMSSerializerBundle中的那样添加了Discriminator / Virtual Property,这就是为什么它们没有被序列化。真的不知道。