[TYPO3-mvc] update an existing fe_user without editAction

[Kevin Ulrich Moschallski]

Hi,

sorry for the strange title of the posting, but i didn't find any better way to describe it in short.

I have an controller where i create fe_users. This works fine.

My problem is, i want to check if an fe_user already exist by mapping it with the email address. I do this with a repository call:

$this->userRepository->findOneByEmail($newUser->getEmail())

This works fine.

How could i update this user?

I tried 

$this->userRepository->replace($existingUser, $newUser);

but then i get an exception:

The given row must contain a value for "uid".
00795:    $dataMap->getTableName(),
00796:    $row

00797:    );

00798:   if ($this->extbaseSettings['persistence']['updateReferenceIndex'] === '1') {
00799:    $this->referenceIndex->updateRefIndexTable($dataMap->getTableName(), $row['uid']);


I can't figure out what's the problem here. When i print_r the $exisitingUser object it has a value for uid.

My question is also if there is a better way to update the user instead of replace it. I don't know how i could use $this->userRepository->update because i don't know how i could manipulate the object with the changed data.

Thanks for help in advance.

Regards,

Kevin Moschallski