[FLOW3-general] Recursive domain object

[Robert Lemke]

Hi Rens,

what does a var_dump($this->items); output if you place it right before the $this->items->attach() ?

Cheers,
robert

Am 16.12.2009 um 16:31 schrieb Rens Admiraal:

> I now tried to create the object in the constructor, but it did not solve the problem.
> 
> 
> With kind regards,
> Rens Admiraal
> TYPO3 Certified Integrator
> 
> Op 16 dec 2009, om 16:23 heeft Tommy Seus het volgende geschreven:
> 
>> Have you created the object in the constructor?
>> 
>> __construct() {
>> $this->items = new \SplObjectStorage;
>> }
>> 
>> 
>> Am 16.12.2009 16:17, schrieb Rens Admiraal:
>>> I have a menuitem object in my domain model, and I want it to be
>>> recursive so menuitems can hold subitems.
>>> I've tried this to add the following variable / method:
>>> 
>>> /**
>>> * @var \SplObjectStorage<\F3\Package\Domain\Model\MenuItem>
>>> * @lazy
>>> */
>>> protected $items;
>>> 
>>> /**
>>> * @param \F3\Package\Domain\Model\MenuItem $item
>>> * @return void
>>> */
>>> public function addMenuItem(\F3\Package\Domain\Model\MenuItem $item) {
>>>   $item->setParent($this);        // setter for parent property of
>>> type \F3\Package\Domain\Model\MenuItem
>>>   $this->items->attach($item);
>>> }
>>> 
>>> 
>>> But when I call the method addMenuItem on an object I get 'Call to a
>>> member function attach() on a non-object in.... on line ...', in which
>>> the linenumber points to the addMenuItem method...
>>> 
>>> What's the right way to create a recursive object?
>>> 
>>> 
>>> With kind regards,
>>> Rens Admiraal
>>> TYPO3 Certified Integrator
>>> 
>>> _______________________________________________
>>> FLOW3-general mailing list
>>> FLOW3-general at lists.typo3.org
>>> http://lists.typo3.org/cgi-bin/mailman/listinfo/flow3-general
>> 
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-- 
Robert Lemke
Fluent Code Artisan

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