[TYPO3-mvc] Save Model in a Schedulertask

[Alexander Walther]

Hi,

i have following method in my Task, but the InstaceModel is not saved.

public function execute() {

 $this->objectManager =
t3lib_div::makeInstance('Tx_Extbase_Object_ObjectManager');
 $this->instaceRepository =
$this->objectManager->get('Tx_T3observer_Domain_Repository_InstaceRepository');

 foreach($this->instaceRepository->findAllEverwhere() as $instace){
  $observerData = unserialize(t3lib_div::getURL($instace->getObserverUrl()));
  if (is_array($observerData)) {
   $instace->setName('test');
   $this->instaceRepository->update($instace);
  }
 }
 return true;
}

Can some tell me what ist wrong.

Greetings
Alex