[TYPO3-english] TYPO3 6.2.x: adding extra fields to tx_news not showing up in front-end

[Bert Hiddink [BENDOO e-work solutions]]

Hello,

I followed this example 
<https://t3brightside.com/blog/article/extending-extnews-with-a-fal-compilant-audio-and-customized-youtube-video/>

...to add some extra fields to tx_news, it even includes a sample extension.

In the backend, the added fields show up and I can add/edit values. 
However, when trying to show the values in Fluid with:
{newsItem.txNewscustomYoutube}
...no output is shown.

Is this an outdated approach? Any help?

Thanks in advance!
Bert

ext_tables.php:

<?php
if (!defined('TYPO3_MODE')) {
   die ('Access denied.');
}
$tempColumns = array(
   'tx_newscustom_youtube' => array(
     'exclude' => 0,
     'label' => 
'LLL:EXT:newscustom/locallang_db.xml:tx_news_domain_model_news.tx_newscustom_youtube',
     'config' => array(
       'type' => 'input',
       'size' => '30',
     )
   ),
);

t3lib_div::loadTCA('tx_news_domain_model_news');
t3lib_extMgm::addTCAcolumns('tx_news_domain_model_news',$tempColumns,1);
t3lib_extMgm::addToAllTCAtypes('tx_news_domain_model_news','tx_newscustom_youtube;;;;1-1-1, 
tx_newscustom_soundcloud, tx_newscustom_audiofile');
?>


Classes/Domain/Model/News.php:


<?php
   class Tx_Newscustom_Domain_Model_News extends Tx_News_Domain_Model_News {
     /**
     * @var string
     */
     protected $txNewscustomSoundcloud;
     /**
     * @var string
     */
     protected $txNewscustomYoutube;
     /**
     * @var string
     */
     protected $txNewscustomAudiofile;
     /**
     * @var string
     */
     public function getTxNewscustomSoundcloud() {
       return $this->txNewscustomSoundcloud;
     }
     /**
     * @var string
     */
     public function getTxNewscustomYoutube() {
       return $this->txNewscustomYoutube;
     }
     /**
     * @var string
     */
     public function getTxNewscustomAudiofile() {
       $fileRepository = 
\TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Resource\\FileRepository');
       $fileObjects = 
$fileRepository->findByRelation('tx_news_domain_model_news', 'file', 
$this->getUid());
       $fileObject = (is_array($fileObjects)) ? 
array_shift($fileObjects) : $fileObjects;
       return (is_object($fileObject) && method_exists($fileObject, 
'getPublicUrl') && $fileObject->getPublicUrl()) ? 
$fileObject->getPublicUrl() : '';
     }
   }
?>


Resources/Private/extend-news.txt:

Domain/Model/News


FLUID:
<!-- In news/Resources/Private/Partials/List/Item.html or 
news/Resources/Private/Templates/News/Detail.html -->
<f:if condition="{newsItem.txNewscustomAudiofile}">
   <audio controls>
     <source src="{newsItem.txNewscustomAudiofile}" type="audio/mpeg">
     Your browser does not support the audio element.
   </audio>
</f:if>

<!-- Or for a customized Youtube video -->
<f:if condition="{newsItem.txNewscustomYoutube}">
   <div class="videoCont">
     <iframe 
src="http://www.youtube.com/embed/{newsItem.txNewscustomYoutube}?HD=1&theme=light&amp;color=white&amp;autohide=1&amp;showinfo=0&amp;rel=0" 
width="922" height="524"></iframe>
   </div>
</f:if>