Question

如何解决此问题。的＆＃34; （entity：EventDetails; id：0x155ebe90; data :)＆＃34; 。

我正在使用下面的代码从我的实体中获取事件。

 managedObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] parentContext];
    writerObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext];
    temporaryContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType];
    temporaryContext.parentContext = managedObjectContext;

    [temporaryContext performBlockAndWait:^{

        if (temporaryContext == nil) {

            managedObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] parentContext];
            writerObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext];
            NSManagedObjectContext *temporaryContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType];
            temporaryContext.parentContext = managedObjectContext;

        }
        NSError *error = nil;
        NSFetchRequest *request = [NSFetchRequest fetchRequestWithEntityName:@"EventDetails"];


        NSArray *arr = [temporaryContext executeFetchRequest:request error:&error];
        NSLog(@" %@", arr);

        if (![temporaryContext save:&error]) {
            NSLog(@"Error in getsize - error:%@",[error userInfo]);
        }


        [managedObjectContext performBlockAndWait:^{

            NSError *error = nil;

            if(![managedObjectContext save:&error])
            {
                NSLog(@"error");
            }

            [writerObjectContext performBlockAndWait:^{

                NSError *error = nil;

                if(![writerObjectContext save:&error])
                {
                    NSLog(@"error");
                }

            }]; // writer
        }]; // main
    }]; // parent

我在我的iphone和模拟器上运行上面的代码。但得到相同的结果。如何摆脱这个？

Answer 1

data: <fault>（可能来自日志声明）只是意味着Core Data没有从数据库中获取所有相关数据，但如果需要信息，将会自动进入商店。

换句话说，这是正常行为。你不必担心它。

解析<nsmanagedobject：0x155ec810 =“”>（entity：EventDetails; id：some id / EventDetails / p1＆gt ;; data：<fault>）“</fault> </nsmanagedobject：>

1 个答案: