New project and old Core Data Model - ios

Question

I do have an existing project with a Core Data model. I am trying to run a new project (on top of the old model) and read what it's in the model itself.
Now, the app runs smoothly on top of the previous one. I have imported the .xcdatamodeld and nothing is crashing. However when I try to get some values from an Entity that should have some (since I have loaded it before from the old project), I get 0 as results.
I am new to Core Data, so I might be missing something really simple.
This is my current persistentStoreCoordinator (which I have found here: Coredata after Application Update):
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator
{
NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:#"Model"];
NSManagedObjectModel *managedObjectModel = [self managedObjectModel];
NSError *error = nil;
_persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: managedObjectModel];
// Check if we already have a persistent store
if ( [[NSFileManager defaultManager] fileExistsAtPath: [storeURL path]] ) {
NSLog(#"We have a persistent store!");
NSDictionary *existingPersistentStoreMetadata = [NSPersistentStoreCoordinator metadataForPersistentStoreOfType: NSSQLiteStoreType URL: storeURL error: &error];
if ( !existingPersistentStoreMetadata ) {
// Something *really* bad has happened to the persistent store
//[NSException raise: NSInternalInconsistencyException format: #"Failed to read metadata for persistent store %#: %#", storeURL, error];
NSLog(#"Failed to read metadata for persistent store %#: %#", storeURL, error);
}
if ( ![managedObjectModel isConfiguration: nil compatibleWithStoreMetadata: existingPersistentStoreMetadata] ) {
if ( ![[NSFileManager defaultManager] removeItemAtURL: storeURL error: &error] )
NSLog(#"*** Could not delete persistent store, %#", error);
} // else the existing persistent store is compatible with the current model - nice!
NSLog(#"Existing store is compatible!");
} // else no database file yet
[_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType
configuration:nil
URL:storeURL
options:nil
error:&error];
return _persistentStoreCoordinator;
}
I get the logs "we have a persistent store" and "existing store is compatible", so I am assuming I am actually finding the core data model that is saved on the device.
This is my managedObjectModel:
- (NSManagedObjectModel *)managedObjectModel {
// The managed object model for the application. It is a fatal error for the application not to be able to find and load its model.
if (_managedObjectModel != nil) {
NSLog(#"Not Null!");
return _managedObjectModel;
}
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:#"Model" withExtension:#"momd"];
_managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
return _managedObjectModel;
}
This is how I am trying to read the data (I am calling the method in didFinishLaunchingWithOptions):
-(void) readData {
NSManagedObjectContext *context = [self managedObjectContext];
if(context != nil)
NSLog(#"not null");
NSFetchRequest* request = [NSFetchRequest fetchRequestWithEntityName:# "StaffAccount"];
NSError* error = nil;
NSArray* results = [context executeFetchRequest:request error:&error];
if (!results || error) { // nil is an error
// handle error
NSLog(#"Errore!");
}
NSArray *arr = [context executeFetchRequest:request error: &error];
NSInteger count = [arr count];
NSLog(#"%ld", (long)count);
}