[ACCEPTED]-Do not show null element with Symfony serializer-serialization
Accepted answer
A solution would be to extend from ObjectNormalizer class, override 3 the normalize() method and remove all null values there:
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Encoder\XmlEncoder;
class CustomObjectNormalizer extends ObjectNormalizer
{
public function normalize($object, $format = null, array $context = [])
{
$data = parent::normalize($object, $format, $context);
return array_filter($data, function ($value) {
return null !== $value;
});
}
}
$encoders = array(new XmlEncoder());
$normalizers = array(new CustomObjectNormalizer());
$serializer = new Serializer($normalizers, $encoders);
// ...
If 2 we have an array of Person like the one of the official documentation:
// ...
$person1 = new Person();
$person1->setName('foo');
$person1->setAge(null);
$person1->setSportsman(false);
$person2 = new Person();
$person2->setName('bar');
$person2->setAge(33);
$person2->setSportsman(null);
$persons = array($person1, $person2);
$xmlContent = $serializer->serialize($persons, 'xml');
echo $xmlContent;
The result will be 1 those not null nodes:
<?xml version="1.0"?>
<response>
<item key="0">
<name>foo</name>
<sportsman>0</sportsman>
</item>
<item key="1">
<name>bar</name>
<age>33</age>
</item>
</response>
There is a better solution also since November 3 2016 with this feature : [Serializer] XmlEncoder : Add a way to remove empty tags
You just have to 2 put the context parameter remove_empty_tags to true like 1 this example
Source:
stackoverflow.com
More Related questions
Cookie Warning
We use cookies to improve the performance of the site. By staying on our site, you agree to the terms of use of cookies.