처음으로 여기에 질문하는 것이지만 미안하지만 비슷한 것을 찾을 수 없습니다. 그래서 Entity "City"속성 - @ "name"에 업데이트 데이터가 필요합니다. 내 핵심 데이터에서 예를 들어 은 이미 "뉴욕", @ "보스턴"을 보유하고 있습니다. 그리고 XML을 파싱하면 NSMutableArray * Cities = (@ "New York", @ "Boston", @ "Los Angeles", @ "Washington");핵심 데이터 목표 C 엔터티의 콘텐츠 업데이트
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
NSString *attributeString = @"name";
NSManagedObject *object = [self.fetchedResultsController objectAtIndexPath:indexPath];
//save to the TableView
cell.textLabel.text = [[object valueForKey:attributeString] description];
if ((indexPath.row + 1) == numberOfSectionsInTableView && (self.isParsingDone))
[self.insertNewObjectToCities:nil];
//When coredata updating - tableView is also updating automatically
//Here is just adding new data, but I do not know how to update
- (void)insertNewObjectToCities_translation:(id)sender
{
NSManagedObjectContext *context = [self.fetchedResultsController managedObjectContext];
NSEntityDescription *entity = [[self.fetchedResultsController fetchRequest] entity];
NSManagedObject *newManagedObject = [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context];
NSString *attributeString = @"name";
if (![[self.parseCities.Cities objectAtIndex:i] isEqualToString:[newManagedObject valueForKey:attributeString]])
{
[newManagedObject setValue:[self.parseCities.Cities objectAtIndex:i] forKey:attributeString];
NSLog(@"OBBB %@", [self.parseCities.Cities objectAtIndex:i]);
NSLog(@"dessss %@", [[newManagedObject valueForKey:attributeString] description]);
i++;
if (i==[self.parseCities.Cities count])
{
i = 0;
return;
}
else
{
NSLog(@"valueForKey %@", [newManagedObject valueForKey:attributeString]);
[self insertNewObjectToCities_translation:nil];
}
}
else
{
NSLog(@"else");
return;
}
// Save the context.
NSError *error = nil;
if (![context save:&error]) {
// Replace this implementation with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}