serialize_null configuration

[AAtticus]

To be able to work with Knockout.js I require the keys of empty values to be preserved.
I thought this was added to a previous version of JMSSerializerBundle / Serializer but in the current version I can't find anything to make sure it also serializes null values.

Any suggestions?

(note: not sure if this should be posted in JMSSerializeBundle or here)

[stof]

This is part of the context: https://github.com/schmittjoh/serializer/blob/master/src/JMS/Serializer/Context.php#L176

[schmittjoh]

Please ask question on the mailing list, or Stack Overflow. Thanks!

[geshan]

Is there a question for it already on stack overflow or mailing list? any link? I'm facing a similar issue?

[Fraktl]

I can't find a solution for this anywhere.
Something like this should either be included in the documentation or easily configurable in the extension settings.

[davidspiess]

Here is an example

use JMS\Serializer\SerializationContext;

$serializationContext = SerializationContext::create()->setSerializeNull(true);
$serializer->serialize($object, $format, $serializationContext);