[TYPO3-mvc] [Extbase] Object doesn't get initialized.

[Franz Koch]

Hey,

> main_domain_model -(m:n)->  user -(1:n)->  item
>
> In my user model I initialize the items:
>
> class Tx_MyExt_Domain_Model_User extends
> Tx_Extbase_Domain_Model_FrontendUser {
>
> /**
>   * @var Tx_Extbase_Persistence_ObjectStorage<Tx_MyExt_Domain_Model_Item>
> The items of a user
>   **/
> protected $items;
>
> /**
>   * Constructor
>   **/
> public function __construct() {
> 	$this->items = new Tx_Extbase_Persistence_ObjectStorage;
> }
>
> ...
>
> /**
>   * Returns the items of the user
>   *
>   * @return
> Tx_Extbase_Persistence_ObjectStorage<Tx_MyExt_Domain_Model_Item>  The
> items of the user
>   **/
> public function getItems() {
> 	return clone $this->items;
> }
>
> ...
>
> }

do you also have a setter method? If not, add it and see if your issue 
is gone (which it should).

...
> However I get the error "Fatal error: __clone method called on non-object
> in ..." when for example the $user->getItems Method gets called during
> operation.
>
> The 'items' attribute is somehow not initialized and it is set to 'NULL'.
>
> I have no clue about how to trace this error down. I would highly
> appreciate if somebody could help me out with a hint on where the problem
> could actually be. Is there a general mistake I might have made here?

IIRC extbase is only calling the constructor on new objects - but not 
objects that get reconstituted from database (which could create wrong 
parameters somehow).

-- 
kind regards,
Franz Koch