Retrieve content element field from within a plugin template?

Question

I am modifying the template of a plugin, and I want to retrieve a field from the content element.

Using f:debug I see the only data available is from the plugin itself, and none from the content element.

Is there any way I can perhaps insert the field I need in the plugin settings?

eg. something like:

plugin.tx_plugin.settings {
    contentUid = TEXT
    contentUid.field = uid
}

Answer 1

The best way I can think of to do this is with a custom ViewHelper. Something like:

namespace MyVendor\MyExtension\ViewHelpers;

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Configuration\ConfigurationManager;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

class ContentUidViewHelper extends AbstractViewHelper
{
    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $configurationManager = GeneralUtility::makeInstance(ConfigurationManager::class);
        return $configurationManager->getContentObject()->data['uid'];
    }
}

In your Fluid template:

<mynamespace:contentUid />

This will get the uid of the content element, but you can get any field this way. Just change the key of the data array to the field you need.