在 CloudKit 中获取私人用户记录

Question

我正在尝试获取 CloudKit 中用户保存的数据。我可以在 CloudKit 仪表板中看到记录，但无法通过应用程序中的代码访问它。

-(void)getUserRecordID {
    CKContainer *defaultContainer =[CKContainer defaultContainer];
    [defaultContainer fetchUserRecordIDWithCompletionHandler:^(CKRecordID *recordID, NSError *error) {
        if (!error) {

            [defaultContainer fetchUserRecordIDWithCompletionHandler:^(CKRecordID *recordID, NSError *error) {
                 self.userRecordID = recordID;
                NSLog(@"user record id: %@",recordID);
                [self getUserRecord];

            }];

       }
        else {
            NSLog(@"error: %@",error.localizedDescription);
        }
    }];

}

-(void)getUserRecord {
    CKContainer *defaultContainer =[CKContainer defaultContainer];   
    CKDatabase *publicDatabase = defaultContainer.publicCloudDatabase;
    [publicDatabase fetchRecordWithID:self.userRecordID completionHandler:^(CKRecord *userRecord, NSError *error) {
        if (!error) {
            NSLog(@"current coins: %@",userRecord);


        }
        else {
            NSLog(@"error: %@",error.localizedDescription);
        }
    }];
}

这为我提供了用户记录信息，但不是已保存私人记录的 ID。我怎样才能得到它们？

Answer 1

找出解决方案。您必须使用 CKQuery 和 NSPredicate 查询私人记录。

-(void)getUserRecordID {
    CKContainer *defaultContainer =[CKContainer defaultContainer];
    [defaultContainer fetchUserRecordIDWithCompletionHandler:^(CKRecordID *recordID, NSError *error) {
        if (!error) {
            self.userRecordID = recordID;
            NSLog(@"user record id: %@",recordID.recordName);
            [self getStatsRecord];
        }
        else {
            NSLog(@"error: %@",error.localizedDescription);
        }
    }];

}

-(void)getStatsRecord {
    CKDatabase *privateDatabase = [[CKContainer defaultContainer] privateCloudDatabase];
    CKReference *reference = [[CKReference alloc] initWithRecordID:self.userRecordID action:CKReferenceActionNone];
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"creatorUserRecordID = %@", reference];
    CKQuery *query = [[CKQuery alloc] initWithRecordType:@"Stats" predicate:predicate];
    [privateDatabase performQuery:query inZoneWithID:nil completionHandler:^(NSArray *results, NSError *error) {
        if (error) {
            NSLog(@"error: %@",error.localizedDescription);
        }
        else {
            if (![results firstObject]) {
                [self createBlankRecord];
            }
            else {
                CKRecord *record = [results firstObject];
                NSLog(@"%@",record);
            }
        }
    }];

}

在 CloudKit 中获取私人用户记录

Getting Private User Record in CloudKit

ios

cloudkit