Setting up magical record with RestKit

RKAppDelegate.m

#import <RestKit/RestKit.h>
#import "CoreData+MagicalRecord.h"

// Use a class extension to expose access to MagicalRecord's private setter methods
@interface NSManagedObjectContext ()
+ (void)MR_setRootSavingContext:(NSManagedObjectContext *)context;
+ (void)MR_setDefaultContext:(NSManagedObjectContext *)moc;
@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Configure RestKit's Core Data stack
    NSURL *modelURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"YourApp" ofType:@"momd"]];
    NSManagedObjectModel *managedObjectModel = [[[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL] mutableCopy];
    RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel];
    NSString *storePath = [RKApplicationDataDirectory() stringByAppendingPathComponent:@"YourApp.sqlite"];
    NSError *error = nil;
    [managedObjectStore addSQLitePersistentStoreAtPath:storePath fromSeedDatabaseAtPath:nil withConfiguration:nil options:nil error:&error];
    [managedObjectStore createManagedObjectContexts];
    
    // Configure MagicalRecord to use RestKit's Core Data stack
    [NSPersistentStoreCoordinator MR_setDefaultStoreCoordinator:managedObjectStore.persistentStoreCoordinator];
    [NSManagedObjectContext MR_setRootSavingContext:managedObjectStore.persistentStoreManagedObjectContext];
    [NSManagedObjectContext MR_setDefaultContext:managedObjectStore.mainQueueManagedObjectContext];
    
    
    RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"http://restkit.org"]];
    objectManager.managedObjectStore = managedObjectStore;
    
    // Pass the MagicalRecord
    UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
    RKMRMasterViewController *controller = (RKMRMasterViewController *)navigationController.topViewController;
    controller.managedObjectContext = [NSManagedObjectContext MR_defaultContext];
    return YES;
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    // Saves changes in the application's managed object context before the application terminates.
    [MagicalRecord cleanUp];
}

@end

I've created an objective-c category file called "NSMangedObjectContext_MagicalRecordify.h", added to the Bridging header:

#import "NSMangedObjectContext_MagicalRecordify.h"

and the content of the file:

@interface NSManagedObjectContext (MagicalRecordify)
+ (void)MR_setRootSavingContext:(NSManagedObjectContext *)context;
+ (void)MR_setDefaultContext:(NSManagedObjectContext *)moc;
@end

As a result you can configure the MagicalRecord to use RestKit's Core Data stack as it is described above:

NSPersistentStoreCoordinator.MR_setDefaultStoreCoordinator(persistentStore)
NSManagedObjectContext.MR_setRootSavingContext(managedObjectStore.persistentStoreManagedObjectContext)
NSManagedObjectContext.MR_setDefaultContext(managedObjectStore.mainQueueManagedObjectContext)