This is untested and undocumented code not suitable for production use.
MRRealmResultsController is an alternative to NSFetchedResultsController for use with realm-cocoa.
I've made it because I wanted to check how well could Realm perform when used as a replacement to Core Data in an existing application with as few changes as possible made to the application code.
The MRRealmResultsControllerExample project is essentially the TableView from RealmExamples with some modifications to demonstrate the use of MRRealmResultsController.
The key differences between NSFetchedResultsController and MRRealmResultsController interfaces reside in the following methods:
// NSFetchedResultsController
- (id)initWithFetchRequest:(NSFetchRequest *)fetchRequest
managedObjectContext: (NSManagedObjectContext *)context
sectionNameKeyPath:(NSString *)sectionNameKeyPath
cacheName:(NSString *)name;
// MRRealmResultsController
- (id)initWithClass:(Class)objectClass
predicate:(NSPredicate *)predicate
realm:(RLMRealm *)realmOrNil
sortDescriptor:(NSSortDescriptor *)sortDescriptor
sectionSortDescriptor:(NSSortDescriptor *)sectionSortDescriptorOrNil
andNameKeyPath:(NSString *)sectionNameKeyPath;
// NSFetchedResultsControllerDelegate
- (void)controller:(NSFetchedResultsController *)controller
didChangeObject:(id)anObject
atIndexPath:(NSIndexPath *)indexPath
forChangeType:(NSFetchedResultsChangeType)type
newIndexPath:(NSIndexPath *)newIndexPath;
- (void)controller:(NSFetchedResultsController *)controller
didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo
atIndex:(NSUInteger)sectionIndex
forChangeType:(NSFetchedResultsChangeType)type;
// MRRealmResultsControllerDelegate
- (void)controller:(MRRealmResultsController *)controller
didChangeSection:(id <MRRealmSectionInfo>)sectionInfo
atIndex:(NSUInteger)sectionIndex
forChangeType:(MRRealmResultsChangeType)type;To run the example project, clone the repo, and run pod install from the Example directory first.
MRRealmResultsController is available through CocoaPods. To install it, simply add the following line to your Podfile:
pod "MRRealmResultsController"Perform the following steps:
- Add Realm into your project (see https://realm.io/docs/objc/latest/#installation).
- Copy MRRealmResultsController directory into your project.
MRRealmResultsController is available under the MIT license. See the LICENSE file for more info.