CODEWITHSUNDEEP
iphoneobjective-ccore-data
Finger twist
Finger twist

Reputation: 3786

Core Data : "insertNewObjectForEntityForName" question

I'm trying to use "insertNewObjectForEntityForName", but I've got a problem with my declaration, I wondered if someone had an opinion on this .

This is my implementation :

NSManagedObjectContext *context = [(AppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext];

// Create Object
Shots *newShot = (Shots *)[NSEntityDescription insertNewObjectForEntityForName:@"Shots" inManagedObjectContext:context];

It's complaining that "Shots" is undeclared, now my question is : Do I need to declare a new class for Shots ? Knowing that it appears as a NSManagedObject in the dataModeler ?

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Upvotes: 0

Views: 753

Answers (3)

Edward Ashak
Edward Ashak

Reputation: 2421

you will also probably need to click on your shots entity in the datamodule and then click file->new and you will be presented with a new item called "managed Object class" once you u go through the steps it will write down that class as you made the entity in the dataModule.

Upvotes: 0

Graham Perks
Graham Perks

Reputation: 23390

No, you do not need to write your own "Shots" class. In which case, use "NSManagedObject" as the data type instead. It'll respond to accessing the Shots data fields.

NSManagedObject *newShot = [NSEntityDescription insertNewObjectForEntityForName:@"Shots" inManagedObjectContext:context];

You can write a Shots class, it will have NSManagedObject as its base class, if you need to implement model behavior particular to the Shots objects.

Upvotes: 3

makdad
makdad

Reputation: 6450

Have you included #import "Shots.h" at the top of this file?

I am not sure what you mean by "undeclared", but an NSManagedObject (Core Data Entity) is just like any other object; if you want to use it, you need to import it.

Upvotes: 2

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