TYPO3 Core

Georg Ringer wrote:

BackendUtility is for the backend as the name suggests. what are you doing exactly to get this error? you can also initialize the $GLOBALS['BE_USER'] yourself in the FE.

I try to save some modeldata in my FE with the add-function of \TYPO3\CMS\Extbase\Persistence\Repository. I dont want to use the $GLOBALS['BE_USER'] or the BackendUtility-Class on my own, but TYPO3 is doing that for me and it causes this error. The same function works great in TYPO3 7.6.

In TYPO3 8.x the function getTSConfig work without and Backend Login.
Since TYPO3 9 the getTSConfig is not working anymore in Frontend Context.

Is there a way to create the missing $GLOBALS['BE_USER'] or is there another way to get the TSConfig in frontend context?

The breaking change is not documented and broke the gridelements extension :-(

It currently breaks all extensions, which write from Frontend into Database and use the repository methods.

Quickfix:

        $userTSconfig =  [];
        if( static::getBackendUserAuthentication() ){
            $userTSconfig = static::getBackendUserAuthentication()->getTSConfig() ?? [];
        }

        //$userTSconfig = static::getBackendUserAuthentication()->getTSConfig() ?? [];

But it should be fixed soon.

Another quick fix can be initializing BE User before fetching getPagesTSconfig.

        if($GLOBALS['BE_USER'] === null) {
            $GLOBALS['BE_USER'] = GeneralUtility::makeInstance('TYPO3\CMS\Core\Authentication\BackendUserAuthentication');
            $GLOBALS['BE_USER']->start();
        }

yes, this solution works fine but needs to improve by this one:

First include the namespace and then write code: Otherwise give deprecation error.

use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;

if($GLOBALS['BE_USER'] === null) {
            $GLOBALS['BE_USER'] = GeneralUtility::makeInstance(BackendUserAuthentication::class);
            $GLOBALS['BE_USER']->start();
        }

If this doesn't work try to set enabledBeUserIPLock to false. checkLockToIP() is called before your own Controller.