Xcode 4 CoreData set data visually

Question

Im using xcode 4 and i've created a CoreData model. I would like to know if its possible to insert data into an entity within xcode.

Please don't tell me the only way to enter data into a model is programmatically.

Cheers

Yeh, i would like to set up and insert all the data into the database in xcode and then use that data in my program — user346443, Apr 15 '11 at 13:03

score 3 · Answer 1 · answered Apr 15 '11 at 13:30

3

Ray Wenderlich provides a tutorial on How to Preload/Import Existing Data using a Python script to populate the database.

His three-part series on Core Data is very informative.

answered Apr 15 '11 at 13:30

Black Frog

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score 2 · Accepted Answer · edited May 23 '17 at 09:58

2

You can not enter data directly with XCode. If you don't want to do this with code you can prepopulate your db. Have a look at this Q&A on SO.

edited May 23 '17 at 09:58

Community

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answered Apr 15 '11 at 13:05

Nick Weaver

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Man Apple makes it hard. Thanks for the answer – user346443 Apr 15 '11 at 13:08

score 0 · Answer 3 · answered May 29 '13 at 12:47

It's a very slow procedure, but you can populate Core Data.

Insert the following code in appDelegate.m

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

    //test
    //writing data

        NSManagedObjectContext *context = [self managedObjectContext];
        NSManagedObject *model = [NSEntityDescription insertNewObjectForEntityForName:@"Invitados" inManagedObjectContext:context];
        [model setValue:@"Alicia" forKey:@"name"];
        [model setValue:@"Sanchez" forKey:@"firstname"];
        [model setValue:@"Romero" forKey:@"secondname"];


        NSError *error;
        if (![context save:&error]) {
            NSLog(@"Couldn't save: %@", [error localizedDescription]);
        }
        //retrieving data
        // NSManagedObjectContext *context = [self managedObjectContext];
        //NSError *error;

        NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
        NSEntityDescription *entity = [NSEntityDescription  entityForName:@"Invitados" inManagedObjectContext:context];
        [fetchRequest setEntity:entity];

        NSArray *fetchedObjects = [context executeFetchRequest:fetchRequest error:&error];

        for (NSManagedObject *get in fetchedObjects) {
            NSLog(@"Nombre: %@", [get valueForKey:@"name"]);
            NSLog(@"Apellido 1: %@", [get valueForKey:@"firstname"]);
            NSLog(@"Apellido 2: %@",[get valueForKey:@"secondname"]);
        }
        // End test

How would you do this with Cocoa? Cocoa does not have `NSFetchRequestController` but instead uses the `NSArrayController` — Pavan, Apr 27 '14 at 06:42

Xcode 4 CoreData set data visually

3 Answers3