我有两种记录类型:Books 和 Authors。书籍有两个属性BookName(String) & AuthorName(CKReference)。 Authors 有一个属性 AuthorTitle(String)。
我保存CKReference如下
let authorReference = CKReference(record: addBookViewController.authorTitle!, action: CKReferenceAction.DeleteSelf)
bookRecord.setObject(authorReference, forKey: "AuthorName")
我目前正在获取 CKReference 如下显示在表上
let authorReference = bookRecord.objectForKey("AuthorName") as! CKReference
let authorTitle = authorReference.recordID.recordName
cell.detailTextLabel?.text = authorTitle
在 tableview 单元格上，它显示 AuthorName 的记录 ID。相反，我想以字符串格式查看 AuthorName。我如何获得它？
最佳答案
您还可以使用CKFetchRecordsOperation
CKRecordID *recordID = [[CKRecordID alloc] initWithRecordName:@"firstRecordIDName"];
CKRecordID *recordID2 = [[CKRecordID alloc] initWithRecordName:@"secondRecordIDName"];
NSArray *arrayOfRecordIDs = @[recordID,recordID2];;
CKFetchRecordsOperation *fetchRecordsOperation = [[CKFetchRecordsOperation alloc]initWithRecordIDs:arrayOfRecordIDs];
fetchRecordsOperation.perRecordCompletionBlock = ^(CKRecord *record, CKRecordID *recordID, NSError *error) {
if (error) {
// handle error
}else {
// Successfull fetch, create data model
}
};
fetchRecordsOperation.database = publicDatabase;
[fetchRecordsOperation start];
关于ios - 如何从 CKReference 对象中获取引用字符串，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30539644/