TYPO3 Gridelements. Render assets from child - typo3

Question

I'm creating a content Element with gridelments where i need to render some Data from the childs directly. There is no problem for fields like "bodytext" or "header". But the assets gives me only a counter, not a reference or path.
So the big question: How can i render the assets images from the childs?

Answer 1

I can share a VH I just did
<?php
namespace GeorgRinger\Theme\ViewHelpers;
use TYPO3\CMS\Core\Database\DatabaseConnection;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3\CMS\Frontend\Resource\FileCollector;
class FalViewHelper extends AbstractViewHelper
{
/**
* #var boolean
*/
protected $escapeOutput = FALSE;
/**
* #param string $table
* #param string $field
* #param string $id
* #param string $as
* #return string
*/
public function render($table, $field, $id, $as = 'references')
{
$row = $this->getDatabaseConnection()->exec_SELECTgetSingleRow('*', $table, 'uid=' . (int)$id);
if (!$row) {
return '';
}
$fileCollector = GeneralUtility::makeInstance(FileCollector::class);
$fileCollector->addFilesFromRelation($table, $field, $row);
$this->templateVariableContainer->add($as, $fileCollector->getFiles());
$output = $this->renderChildren();
$this->templateVariableContainer->remove($as);
return $output;
}
/**
* #return DatabaseConnection
*/
protected function getDatabaseConnection()
{
return $GLOBALS['TYPO3_DB'];
}
}
Of course you need to adopt the namspace.
Usage would be
<theme:fal table="tt_content" field="assets" id=" => the id <= ">
<f:debug>{references}</f:debug>
</theme:fal>