如何查询CloudKit的recordID IN [CKRecordID] [英] How to query CloudKit for recordID IN [CKRecordID]

问题描述

我的谓词想要排除已经下载并在[CKRecordID]中可用的一些记录。现在我可以查询1个CKRecordID [0]，但不能查询[CKRecordID]数组。如何查询数组？

My predicate wants to exclude some records that are already downloaded and available in a [CKRecordID]. Now I can query 1 CKRecordID[0], but not the [CKRecordID] array. How can I query the array?

let excludeIDs: [CKRecordID]

这有效：

let pred1 = NSPredicate(format: "NOT(recordID = %@)", excludeIDs[0])

但这不是：

let pred1 = NSPredicate(format: "NOT(recordID IN %@)", excludeIDs)

错误：
loadImageCompareRecordIDsAndEndDateThatHaveNotEnded错误：无效谓词：无效谓词：数组成员必须符合CKRecordValue：（
，
，
，
，

）（CKRecordID）

ERROR: loadImageCompareRecordIDsAndEndDateThatHaveNotEnded Error: Invalid predicate: Invalid predicate: Array members must conform to CKRecordValue: ( "", "", "", "", "" ) (CKRecordID)

代码的其他一般部分：

    let sort = NSSortDescriptor(key: "creationDate", ascending: false)
    let query = CKQuery(recordType: MyRecordTypes.ImageCompare, predicate: pred1)
    query.sortDescriptors = [sort]
    let operation = CKQueryOperation(query: query)
    operation.desiredKeys = ["endDate"]
    operation.resultsLimit = 50

推荐答案

使用[CKReference]而不是[CKRecordID]解决了它。

Using [CKReference] and not [CKRecordID] solved it.

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