Re: Cant Access Properties of NSManagedObject from a NSArrayController...
Re: Cant Access Properties of NSManagedObject from a NSArrayController...
- Subject: Re: Cant Access Properties of NSManagedObject from a NSArrayController...
- From: Gustavo Pizano <email@hidden>
- Date: Tue, 24 Nov 2009 21:18:46 +0100
AMMMM ... ok...
Thanks for the help Quincey.
G
On Nov 24, 2009, at 8:58 PM, Quincey Morris wrote:
> On Nov 24, 2009, at 11:42, Gustavo Pizano wrote:
>
>> Now the interesting part, 14, I did jsut a test to see what I could get, and eventually the way it is, I get the value of @"ico", BUT, If I try to do the follwoing: NSLog(@"%@",[(User *)[[parent _userListArrayController] selection] ico]);, then I get:
>>
>> -[_NSControllerObjectProxy ico]: unrecognized selector sent to instance 0x100266580
>> so in 15 when I try to add this newInvoice to the existing ones, with the addToInvoicesObject method, I get also something like this :
>>
>> -[_NSControllerObjectProxy addToInvoicesObject:]: unrecognized selector sent to instance 0x1001b7a10
>>
>> so at the end I can't add an invoice to the selected user from the _userListArrayController..
>>
>> any clue what Im doing wrong?
>
> You should read the documentation for the 'selection' method (in NSObjectController, the superclass of NSArrayController).
>
> That method gives you a *proxy* object that you can use for KVC access to the underlying properties (as you found) but doesn't respond to specific accessors (as you found).
>
> If you want the actual data model objects (that is, the NSManagedObject [or subclass] objects), use the NSArrayController's 'selectedObjects' method instead -- which always returns an array, BTW, so just use the object at index 0.
>
>
>
>
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