iOS Core Data Persistance After restarting app

Question

With Core Data, I am able to save and fetch objects in memory; however, when I restart my app (in the simulator) and fetch the results, the object is fetched but all the attributes are nil. I have included all protocol methods in my appdelegate and having initialized my managedObjectContext as such:

managedObjectContext = [self managedObjectContext];

in - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

Here is what I am getting in the logs...

Correct: Fetching results log (app not restarted) --> Name: new entry!!!!

Incorrect: Fetching results log (app restarted) --> Name: (null) -But, object still exists in persistantStore

--

//Save entry
Entry *entry = (Entry *)[NSEntityDescription insertNewObjectForEntityForName:@"Entries" inManagedObjectContext:managedObjectContext];
[entry setTitle:@"new entry!!!!"];
NSError *error;
if(![managedObjectContext save:&error]){
    NSLog(@"SAVE ERROR!!!");
}

//Fetch entry
NSError *error;
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Entries"  inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSArray *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest     error:&error];
for (NSManagedObject *info in fetchedObjects) {
    NSLog(@"Name: %@", [info valueForKey:@"title"]);
}

mprivat mprivat · Accepted Answer · 2012-05-22T18:41:00

Are you sure your Entry class realizes the title property using @dynamic and not @synthetize?

iOS Core Data Persistance After restarting app

1 Answers