objective-c - iCloud 核心数据 IOS8 路径在任何 CloudDocs 容器之外

Question

我的 iCloud Core Data 应用程序在 iOS7 上运行良好，随时可以启动。当我在 iOS 8 上测试时，出现以下错误，并且在尝试将数据上传到 iCloud 时似乎无法修复它。

我怀疑我的问题与我如何使用 iOS8 获取文档目录和 doc 目录中的更改有关，但我就是想不通。

014-10-12 15:14:17.862 XXXXXXX [4662:236693] __45-[PFUbiquityFilePresenter processPendingURLs]_block_invoke(439): CoreData: Ubiquity:  Librarian returned a serious error for starting downloads Error Domain=BRCloudDocsErrorDomain Code=6 "The operation couldn’t be completed. (BRCloudDocsErrorDomain error 6 - Path is outside of any CloudDocs container, will never sync)" UserInfo=0x7f8b1a525f60 {NSDescription=Path is outside of any CloudDocs container, will never sync, NSFilePath=/Users/garyrea/Library/Developer/CoreSimulator/Devices/9AADFE8E-5ECC-4969-9418-57DA45B747C9/data/Containers/Data/Application/AD2E5E62-7295-4371-A08D-1790E8FCCD96/Documents/CoreDataUbiquitySupport/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/5B8BFA36-1ACA-4966-B7ED-A7344D36ACF1/container/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/2trlqdMQVpJ~wlEfiLvjWtQfrUJ8YiNCd84KW_xiw4A=/F0CF5F29-D437-4728-B0A2-C5BB90BBC239.1.cdt} with userInfo {
    NSDescription = "Path is outside of any CloudDocs container, will never sync";
    NSFilePath = "/Users/garyrea/Library/Developer/CoreSimulator/Devices/9AADFE8E-5ECC-4969-9418-57DA45B747C9/data/Containers/Data/Application/AD2E5E62-7295-4371-A08D-1790E8FCCD96/Documents/CoreDataUbiquitySupport/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/5B8BFA36-1ACA-4966-B7ED-A7344D36ACF1/container/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/2trlqdMQVpJ~wlEfiLvjWtQfrUJ8YiNCd84KW_xiw4A=/F0CF5F29-D437-4728-B0A2-C5BB90BBC239.1.cdt";
} for these urls: (
    "file:///Users/garyrea/Library/Developer/CoreSimulator/Devices/9AADFE8E-5ECC-4969-9418-57DA45B747C9/data/Containers/Data/Application/AD2E5E62-7295-4371-A08D-1790E8FCCD96/Documents/CoreDataUbiquitySupport/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/5B8BFA36-1ACA-4966-B7ED-A7344D36ACF1/container/nobody~simA28745A4-A67F-598C-9260-F9AC36609ECF/iCloud/2trlqdMQVpJ~wlEfiLvjWtQfrUJ8YiNCd84KW_xiw4A=/F0CF5F29-D437-4728-B0A2-C5BB90BBC239.1.cdt"
)

我创建持久存储的应用委托(delegate)扩展代码如下。我有一个用于首次安装的种子数据库。

- (NSPersistentStoreCoordinator *)createPersistentStoreCoordinator{
   NSPersistentStoreCoordinator *persistentStoreCoordinator = nil;
   NSManagedObjectModel *managedObjectModel = [self createManagedObjectModel];
   persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc]initWithManagedObjectModel:managedObjectModel];
   NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@
   "CoreData.sqlite"];    

   if (![[NSFileManager defaultManager]fileExistsAtPath:[storeURL path]]){
       NSURL *preloadURL=[NSURL fileURLWithPath:[[NSBundle mainBundle]pathForResource:@"SeedDatabase" ofType:@
       "sqlite"]];
       NSError *error=nil;
       if (![[NSFileManager defaultManager] copyItemAtURL:preloadURL toURL:storeURL error:&error]){
           NSLog(@
           "File couldnt save");
       }
   }


   NSUbiquitousKeyValueStore *kvStore=[NSUbiquitousKeyValueStore defaultStore];
   if (![kvStore boolForKey:@"SEEDED_DATA"]){
       NSLog (@
       "In the new database");
       NSURL *seedStoreURL=[NSURL fileURLWithPath:[[NSBundle mainBundle]pathForResource:@"SeedDatabase" ofType:@
       "sqlite"]];
       NSError *seedStoreErrpr;
       NSDictionary *seedStoreOptions=@{NSReadOnlyPersistentStoreOption: @YES};
       NSPersistentStore *seedStore=[persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:seedStoreURL options:seedStoreOptions error:&seedStoreErrpr];

       NSDictionary *iCloudOptions =@{NSPersistentStoreUbiquitousContentNameKey: @"iCloud",
                                       NSMigratePersistentStoresAutomaticallyOption:@YES,
                                       NSInferMappingModelAutomaticallyOption:@YES
       };

       NSOperationQueue *queue=[[NSOperationQueue alloc] init];
       [queue addOperationWithBlock:^{
           NSError *error;
           [persistentStoreCoordinator migratePersistentStore:seedStore toURL:storeURL options:iCloudOptions withType:NSSQLiteStoreType error:&error];
           NSLog(@
           "Persistant store migrated");
           [kvStore setBool:YES forKey:@
           "SEEDED_DATA"];
          // [self checkForDuplicates];
       }];
   }else{
       NSError *error;
       NSDictionary *storeOptions =@{NSPersistentStoreUbiquitousContentNameKey: @
          "iCloud"
       };
       if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType
                                        configuration:nil
                                        URL:storeURL
                                        options:storeOptions
                                        error:&error]) {
           NSLog(@
           "Unresolved error %@, %@", error, [error userInfo]);
           abort();
       }
   }

   return persistentStoreCoordinator;
}

- (NSURL *)applicationDocumentsDirectory{
   return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory    inDomains:NSUserDomainMask] lastObject];
}

Answer 1

我能够通过指定 iCloud 驱动器目录(与 developer.apple.com 界面上的名称相同)解决此错误。

-(NSURL *)cloudDirectory
{
NSFileManager *fileManager=[NSFileManager defaultManager];
NSString *teamID=@"iCloud";
NSString *bundleID=[[NSBundle mainBundle]bundleIdentifier];
NSString *cloudRoot=[NSString stringWithFormat:@"%@.%@",teamID,bundleID];
NSURL *cloudRootURL=[fileManager URLForUbiquityContainerIdentifier:cloudRoot];
NSLog (@"cloudRootURL=%@",cloudRootURL);
return cloudRootURL;
}

并将其作为 NSPersistentStoreUbiquitousContentURLKey 包含在 icloudOptions 字典中

NSDictionary *storeOptions =@{NSPersistentStoreUbiquitousContentNameKey: @"iCloud",
                                   NSPersistentStoreUbiquitousContentURLKey:[self cloudDirectory],
                                   };

我遇到了一些奇怪的错误，所以我从所有设备上删除了该应用程序，删除了 iCloud 驱动器文件并在实际设备上重新运行，它运行良好。不确定它现在是否在 IOS7 上运行，但由于我只指定了 NSPersistentStoreUbiquitousContentURLKey，所以我非常有信心它应该没问题。