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horseshoe7 / gist:0083ce48cba98ae107a18de06a39767f
Created Sep 13, 2017
Initialization of Core Data stack that needs a manual migration from 2 different models and stores:
View gist:0083ce48cba98ae107a18de06a39767f
// see also this gist:
// and a post about Core Data migrations at
import Foundation
import CoreData
class CoreDataStackHelper : NSObject, MHWMigrationManagerDelegate {
var currentModelStoreURL: URL? = nil
horseshoe7 / gist:e85bbb90278f626bea2f827ee5228703
Last active Jan 5, 2018
Incremental MHWMigrationManager extended for optional finalDestinationURL
View gist:e85bbb90278f626bea2f827ee5228703
#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>
@class MHWMigrationManager;
@protocol MHWMigrationManagerDelegate <NSObject>
- (void)migrationManager:(MHWMigrationManager *)migrationManager migrationProgress:(float)migrationProgress;
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