新しい管理対象オブジェクトの作成、値の設定、Restkit を使用したサーバーへの保存のドキュメントや例を見つけるのに非常に苦労しています。
私は NSManagedObject 投稿を持っています:
@interface Post : NSManagedObject
@property (nonatomic, retain) NSNumber * postID;
@property (nonatomic, retain) NSString * title;
@property (nonatomic, retain) NSString * text;
@end
これは私の AppDelegate セットアップです:
// ---- BEGIN RestKit setup -----
RKLogConfigureByName("RestKit/Network", RKLogLevelTrace);
NSError *error = nil;
NSURL *modelURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"My_App" ofType:@"momd"]];
// NOTE: Due to an iOS 5 bug, the managed object model returned is immutable.
NSManagedObjectModel *managedObjectModel = [[[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL] mutableCopy];
RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel];
// Enable Activity Indicator Spinner
[AFNetworkActivityIndicatorManager sharedManager].enabled = YES;
// Initialize the Core Data stack
[managedObjectStore createPersistentStoreCoordinator];
NSPersistentStore __unused *persistentStore = [managedObjectStore addInMemoryPersistentStore:&error];
NSAssert(persistentStore, @"Failed to add persistent store: %@", error);
[managedObjectStore createManagedObjectContexts];
// Configure a managed object cache to ensure we do not create duplicate objects
managedObjectStore.managedObjectCache = [[RKInMemoryManagedObjectCache alloc] initWithManagedObjectContext:managedObjectStore.persistentStoreManagedObjectContext];
// Set the default store shared instance
[RKManagedObjectStore setDefaultStore:managedObjectStore];
// Configure the object manager
RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"http://localhost:3000/api/v1"]];
objectManager.managedObjectStore = managedObjectStore;
NSString *auth_token = [[LUKeychainAccess standardKeychainAccess] stringForKey:@"auth_token"]; // Getting the Auth_Token from keychain
[objectManager.HTTPClient setAuthorizationHeaderWithToken:auth_token];
[RKObjectManager setSharedManager:objectManager];
// Setup Post entity mappping
RKEntityMapping *postMapping = [RKEntityMapping mappingForEntityForName:@"Post" inManagedObjectStore:managedObjectStore];
[postMapping addAttributeMappingsFromDictionary:@{
@"title": @"title",
@"text": @"text",
@"id": @"postID"}];
RKResponseDescriptor *postResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:postMapping pathPattern:nil keyPath:@"post" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:postResponseDescriptor];
さて、私の NewPostViewController で、ナビゲーションバーにある「保存」ボタンをクリックすると、この投稿をサーバーに保存するにはどうすればよいですか?
これが私が試したものですが、正しく機能していません。成功ブロックに入り、サーバーが POST を取得しましたが、フィールドは nil です:
- (void)savePost {
RKManagedObjectStore *objectStore = [[RKObjectManager sharedManager] managedObjectStore];
Post *post = [NSEntityDescription insertNewObjectForEntityForName:@"Post" inManagedObjectContext:objectStore.mainQueueManagedObjectContext];
[post setTitle:@"The Title"];
[post setText:@"The Text"];
[[RKObjectManager sharedManager] postObject:post path:@"posts" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
NSLog(@"Success saving post");
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(@"Failure saving post: %@", error.localizedDescription);
}];
}