TYPO3 Core

I've got the following data-structure

one Supercart 1:n> got many carts 1:n> got many Items

Now I want to use JSONVIEW to render each Object and all it's subobjects.

If the parent contains only one child you can render the child.

Once you've got multiple children the routine breaks and you cannot access it's subobjects.

here is my JSONVIEWCONFIGURATION:

$JsonViewConfiguration = [
            'applicationUser2Supercart' => [
                '_descend' => [
                    'supercart' => [
                        '_exposeObjectIdentifier' => TRUE,
                        '_descend' => [
                            'dateAdd' => [],
                            'carts' => [
                                '_exposeObjectIdentifier' => TRUE,
                                '_descend' => [
                                    'cartitems' => [
                                        '_descend'  => [
                                            'item'  => [],
                                        ],
                                    ],
                                    'dateAdd' => [
                                        '_only' => ['date'],
                                    ],
                                ],
                            ],
                        ],
                    ],
                ],
                '_exposeObjectIdentifier' => TRUE,
            ],
        ];

It should be possible to access all children and their children and all of their properties.