Re: [Rubycocoa-talk] Don't understand what I did wrong

[Pierce T. W. I. <pi...@tw...>]

On Feb 29, 2008, at 10:50 AM, Avram Lyon wrote:

> On Fri, Feb 29, 2008 at 9:40 PM, Pierce T. Wetter III
> <pi...@tw...> wrote:
>> The code:
>>
>> @storeMetaDeta
>> =NSPersistentStore.metadataForPersistentStoreWithURL_error(url,error)
>
> Looking at the class documentation
> (http://developer.apple.com/documentation/Cocoa/Reference/NSPersistentStore_Class/Reference/NSPersistentStore.html#/ 
> /apple_ref/occ/clm/NSPersistentStore/ 
> metadataForPersistentStoreWithURL:error:),
> NSPersistentStore.metadataForPersistentStoreWithURL_error is supposed
> to be a class method.

  Yes, it is.
>
>
> Could RubyCocoa be mangling the mapping?
>
> Try initializing a store instance with
> initWithPersistentStoreCoordinator:configurationName:URL:options: and
> then use metadataForPersistentStoreWithURL_error on the instance. I
> realize that defeats the purpose of getting metadata with a class and
> not instance method, but it might help understand what's going on.

   I'm in sort of a catch-22.

   I can't build a persistentStoreCoordinator without an  
NSManagedObjectModel. I can't build one of those because

		@managedObjectModel =  
OSX::NSManagedObjectModel.mergedModelFromBundles(allBundles.allObjects)

  is choking, giving me an exception for trying to insert nil in an  
NSArray. So I'm trying to do this instead:

		@managedObjectModel =  
OSX 
::NSManagedObjectModel 
.mergedModelFromBundles_forStoreMetaData 
(allBundles.allObjects,@storeMetaData)

  but in order to do that, I have to be able to extract the metadata  
from the file without creating a store...

  Pierce