Re: NSFetchRequest Problem Under iOS 4.3.5
Re: NSFetchRequest Problem Under iOS 4.3.5
- Subject: Re: NSFetchRequest Problem Under iOS 4.3.5
- From: Laurent Daudelin <email@hidden>
- Date: Tue, 24 Jan 2012 12:03:03 -0800
Thanks, Dave, that did the trick! Maybe there could be an additional initializer for NSFetchRequest like initWithEntityName:inManagedObjectContext:...
-Laurent.
--
Laurent Daudelin
AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/
Logiciels Nemesys Software email@hidden
On Jan 24, 2012, at 11:54, Dave DeLong wrote:
> NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
> NSEntityDescription *entity = [NSEntityDescription entityForName:@"Relationship" inManagedObjectContext:context];
> [fetchRequest setEntity:entity];
>
> ....
>
> Dave
>
> On Jan 24, 2012, at 11:40 AM, Laurent Daudelin wrote:
>
>> Given the following code:
>>
>> NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:@"Relationship"];
>> NSPredicate *predicate = [NSPredicate predicateWithFormat:@"%K = %@", @"parentObject.objectBaseUuid", wallUuid];
>> [fetchRequest setPredicate:predicate];
>> NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"id" ascending:YES];
>> [fetchRequest setSortDescriptors:[NSArray arrayWithObject:sortDescriptor]];
>> self.discussionFRC = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:context sectionNameKeyPath:NULL cacheName:NULL];
>>
>> I'm getting an exception when trying to create the NSFetchedResultsController:
>>
>> 2012-01-24 11:31:12.184 ECXcollaborate[69599:f203] *** Terminating app due to uncaught exception 'NSObjectInaccessibleException', reason: 'This fetch request (0x6020240) was created with a string name (Relationship), and cannot respond to -entity until used by an NSManagedObjectContext'
>>
>> The same code runs fine under iOS 5. Anybody has any idea on how to workaround that problem? I need the fetch request to create the fetched results controller and if I believe the exception description, I would have to have the managed object context do a fetch with the fetch request so that I can then use it to create the fetched results controller and do a fetch again? That seems rather counter-productive.
>>
>> Comments? Ideas?
>>
>> -Laurent.
>> --
>> Laurent Daudelin
>> AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/
>> Logiciels Nemesys Software email@hidden
>>
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