CloudKitRepository+Helpers.swift

extension CloudKitRepository {
    
    func cktaskOfTask (_ task: Task, completion: @escaping ((_ ctask: CKRecord?) -> Void)) {
        
        let predicate = NSPredicate(format: "objectId == %@", task.objectId as CVarArg)
        let query = CKQuery(recordType: "Task", predicate: predicate)
        privateDB.perform(query, inZoneWith: customZone.zoneID) { (results: [CKRecord]?, error) in
            
            if let result = results?.first {
                completion(result)
            } else {
                completion(nil)
            }
        }
    }
    
    fileprivate func tasksFromCKTasks (_ cktasks: [CKRecord]) -> [Task] {
        
        var tasks = [Task]()
        for cktask in cktasks {
            tasks.append( taskFromCKTask(cktask) )
        }
        
        return tasks
    }
    
    fileprivate func taskFromCKTask (_ cktask: CKRecord) -> Task {
        
        return Task(lastModifiedDate: cktask["modificationDate"] as? Date,
                    startDate: cktask["startDate"] as? Date,
                    endDate: cktask["endDate"] as! Date,
                    notes: cktask["notes"] as? String,
                    taskNumber: cktask["taskNumber"] as? String,
                    taskTitle: cktask["taskTitle"] as? String,
                    taskType: TaskType(rawValue: (cktask["taskType"] as! NSNumber).intValue)!,
                    objectId: cktask["objectId"] as! String
        )
    }
    
    fileprivate func idsFromCKRecordIds (_ ckrecords: [CKRecordID]) -> [String] {
        
        var ids = [String]()
        for ckrecord in ckrecords {
            ids.append( ckrecord.recordName )
        }
        
        return ids
    }
}