[Flow] delete language version in Controller

[Christian Ehret]

Hello,

I'm creating a special kind of "frontend editing" of records. I'm on TYPO3 6.2

My first problem was to display the translated records but with the "patch" described here, I got this working: forge.typo3.org/issues/45873#note-27

My next problem is, that the feuser should be able to delete a localized version of the record. Repository->remove does not work with localized records. If I remove a localized record the deleted flag is set on the parent (sys_lanuage_uid = 0) record. So I added deleted to my model und tried to  set Repository->setDeleted(true); but the deleted flag is not set (I can set other properties - even hidden - but not deleted).

So I tried to implement my own delete Method:

   public function deleteRecord($uid) {
        $query = $this->createquery();
        $query->getQuerySettings()->setReturnRawQueryResult(TRUE);
        $sql = 'UPDATE tx_toco3records_domain_model_mytable SET deleted=1 WHERE uid='.$uid;
        $query->statement($sql);
        $result = $query->execute();
        return $result;
    }  

It is working (the deleted flag is set) but I get this error:
Fatal error: Call to a member function fetch_assoc() on a non-object in /var/www//typo3_src-6.2.14/typo3/sysext/core/Classes/Database/DatabaseConnection.php on line 1038

If I do not set the setReturnRawQueryResult to true, I do not get any error but the deleted flag is not set :-(

Any ideas?

Thank you

Christian