objective c Core Data - Attributes aren't saved persistent - objective-c

Question

i need help!!!^^
I write in my attributes (name,prename) the two names of the person and save them. If i try to access the attrubutes in another view then they are nil. I don't understand why?!?
I did it this way. I get the profileContext with the method getProfile and i access the Attributes with the Dot-Notation, then i save it. My NSLog show me the right name and my fetch too.
ownProfile = [[MyProfile alloc] init];
profileContext = [ownProfile getProfile];
ownProfile = (MyProfile*)[NSEntityDescription insertNewObjectForEntityForName:#"MyProfile" inManagedObjectContext:profileContext];
ownProfile.Vorname = #"Max";
ownProfile.Nachname = #"Wilson";
NSLog(#"%#",ownProfile.Nachname);
if ([profileContext hasChanges]) {
NSLog(#"It has changes!");
[profileContext save:nil];
}
//Fetching
NSEntityDescription *entityDescription = [NSEntityDescription entityForName:#"MyProfile" inManagedObjectContext:profileContext];
NSFetchRequest *request = [[[NSFetchRequest alloc] init] autorelease];
[request setEntity:entityDescription];
NSArray *array = [profileContext executeFetchRequest:request error:nil];
for (int i=0; i < [array count]; i++) {
MyProfile *object = [array objectAtIndex:i];
NSLog(#"Name: %#",object.Nachname);
}
if i try to access the attributes in another ViewController subclass they are nil. This is the code:
- (void)viewDidLoad {
[super viewDidLoad];
ownProfile = [[MyProfile alloc] init];
NSManagedObjectContext *profileContext = [ownProfile getProfile];
ownProfile = [NSEntityDescription insertNewObjectForEntityForName:#"MyProfile" inManagedObjectContext:profileContext];
NSEntityDescription *entityDescription = [NSEntityDescription entityForName:#"MyProfile" inManagedObjectContext:profileContext];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:entityDescription];
[request setIncludesPropertyValues:NO]; //only fetch the managedObjectID
NSArray *array = [profileContext executeFetchRequest:request error:nil];
[request release];
MyProfile *object = [array objectAtIndex:[array count]-1];
NSLog(#"%#",object);
}
my getProfile method is in the NSManagedObjectClass and look like this:
-(NSManagedObjectContext*) getProfile {
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES],
NSMigratePersistentStoresAutomaticallyOption,
[NSNumber numberWithBool:YES],
NSInferMappingModelAutomaticallyOption, nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
NSLog(#"basePath = %#",basePath);
NSURL *storeUrl = [NSURL fileURLWithPath:[basePath stringByAppendingFormat:#"CoreData.sqlite"]];
NSPersistentStoreCoordinator *persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[NSManagedObjectModel mergedModelFromBundles:nil]];
NSLog(#"PersistentStore = %#",persistentStoreCoordinator);
NSError *error = nil;
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) {
NSLog(#"error loading persistent store..");
[[NSFileManager defaultManager] removeItemAtPath:storeUrl.path error:nil];
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) {
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
abort();
}
}
NSManagedObjectContext *profile = [[NSManagedObjectContext alloc] init];
[profile setPersistentStoreCoordinator:persistentStoreCoordinator];
return profile;
}
Please help me!!!^^

Answer 1

Hey guys...I solved my problem!!! :)
My fault was that I add in the viewDidLoad-Method in the line
ownProfile = [NSEntityDescription insertNewObjectForEntityForName:#"MyProfile" inManagedObjectContext:profileContext];
another object in the persistentStore and i was always reading the new object where the attributes are nil...of course^^