[TYPO3-mvc] "Call to a member function attach() on a non-object" when using addUserGroup()

[Sebastian Schreiber]

Hi Christian,
first of all, use the ObjectManager to create or get new / shared 
instances of an object.
So instantiate your userGroupRepository the following way:
$userGroupRepository = 
$this->objectManager->get('Tx_Extbase_Domain_Repository_FrontendUserGroupRepository');

But your problem lies somewhere else.
Did you overwrite the __constructor method in your class new 
Tx_Kbs_Domain_Model_User()?
if so, did you call the parent constructor method with 
parent::__constructor($username = '', $password = '');



Am 07.03.2012 11:18, schrieb Christian Essl:
> Hi
>
>
>
>    Extbase is driving me crazy here.... I try to create a new user and add an existing userGroup:
>
>      if(!is_object($user))
>
>      {
>
>              $newUser = new Tx_Kbs_Domain_Model_User();
>
>              // set the userData
>
>              $userGroupRepository = t3lib_div::makeInstance('Tx_Extbase_Domain_Repository_FrontendUserGroupRepository');
>
>              $userGroup = $userGroupRepository->findByUid(3);
>
>              $newUser->addUserGroup($userGroup);
>
>              $this->userRepository->add($newUser);
>
>      }
>
>      The groups Record Type is set to "Tx_Extbase_Domain_model_FrontendUserGroup".
>
>      Now when I try to attach the UserGroup by "addUserGroup", I get the following error:
>
>      Call to a member function attach() on a non-object in /usr/www/users/ltcdwu/typo3/sysext/extbase/Classes/Domain/Model/FrontendUser.php on line 215
>
>      What is wrong there? There obviously is a UserGroup with uid 3.
>
>      The new Users Record Type is set to the one from my extension. (Not to "Tx_Extbase_Domain_model_FrontendUser) Maybe this is the problem?
>
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-- 
Sebastian Schreiber
(Medieninformatiker B.Sc.)
(TYPO3 Certified Integrator)

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