The _transformAttrs class property array of the importer and exporter classes can be used to specify

a serializer class for a particular attribute. The serializer class will be used to convert the attribute

value from one format to another when the data is exported or imported.

In this case, the developer can specify a serializer class that will convert the JSON data in the

media_gallery attribute to a string. This will prevent the software that the client is using to modify

the exported data from changing the JSON data.

The following code shows how to specify a serializer class for the media_gallery attribute:

PHP

class MySerializer

{

public function serialize($value)

{

return json_encode($value);

}

public function deserialize($value)

{

return json_decode($value);

}

}

$importer->setSerializer('media_gallery', MySerializer::class);

$exporter->setSerializer('media_gallery', MySerializer::class);

Once the serializer class has been specified, the JSON data in the media_gallery attribute will be

converted to a string when the data is exported or imported. This will prevent the software that the

client is using to modify the exported data from changing the JSON data.