Json – JMS Serializer doesn’t expose one property

fosrestbundlejmsserializerbundlejsonsymfony

I making a RESTful app with Symfony and FOSRestBundle. FOSRestBundle uses JMS Serializer to serialize data to json format. I have everything working with one little issue.

This is my Entity class

/**
 * Post
 *
 * @ORM\Table()
 * @ORM\Entity(repositoryClass="Tomalo\AdminBundle\Entity\PostRepository")
 * @ExclusionPolicy("none")
 */
class Post
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="content", type="text")
     * @Assert\NotBlank()
     */
    private $content;

    /**
     * @var float
     *
     * @ORM\Column(name="lat", type="float")
     * @Assert\NotBlank()
     */
    private $lat;

    /**
     * @var float
     *
     * @ORM\Column(name="lon", type="float")
     * @Assert\NotBlank()
     */
    private $lon;

    /**
     * @var \DateTime
     *
     * @ORM\Column(name="date", type="datetime")
     */
    private $date;

    /**
     * @var string
     *
     * @ORM\Column(name="sign", type="string", length=50, nullable=true)
     * @Expose
     */
    private $sign;

    /**
     * @var integer
     *
     * @ORM\Column(name="status", type="integer")
     */
    private $status=0;

    /**
     * @var integer
     *
     * @ORM\Column(name="points", type="integer")
     */
    private $points=0;

    /**
     * @var string
     *
     * @ORM\Column(name="uuid", type="string", length=43)
     * @Assert\NotBlank()
     * @Exclude
     */
    private $uuid;


    private $owner;


    //get/set method continue

and this is json I get:

{
           "id": 5,
           "content": "zxcvzxcvzxc",
           "lat": 37.422005,
           "lon": -122.084095,
           "date": "2013-05-20T05:06:57+0100",
           "status": 0,
           "points": 0,
           "owner": 0
       }

In my entity $uuid is the only property haveing @Exclude annotation and is not there as expected but there is $sign property missing as well. As You see I put @Expose annotation to $sign but changed nothing. I tried using @ExclusionPolicy("all") and expose all except for uuid but I'm getting

Warning: json_encode(): recursion detected in E:\workspace\htdocs\tomalo\vendor\jms\serializer\src\JMS\Serializer\JsonSerializationVisitor.php line 29

I found some information as it is some php bug

any idea what is wrong and how to fix it?

Best Solution

You can serialize nulls as empty strings. Guess it help you a bit

$context = new SerializationContext();
$context->setSerializeNull(true);
$objectData = $serializer->serialize($object, 'json', $context);

For FOSRestBundle you can define it in settings

fos_rest:
    view:
        serialize_null: true
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