CloudKit - Loading Data after call to performQuery

Question

Reloading my table after the performQuery operation completes using CloudKit. The problem is reloading the table with data from the Cloud. My data is good, no problems there.

I found this thread which I think will solve it but I don’t know when to call it and how to call it.

Wait For Asynchronous Operation To Complete in Swift

-- Code

import UIKit
import CloudKit

class DownloadTableViewController: UITableViewController {

    var rooms: [String] = []
    var appliance: [String] = []
    let container = CKContainer.defaultContainer()
    var publicDatabase: CKDatabase?
    var currentRecord: CKRecord?
    let publicDB = CKContainer.defaultContainer().privateCloudDatabase


    var receivedString = myHouse.houseData

    override func viewDidLoad() {
        super.viewDidLoad()
        rooms.removeAll()
        appliance.removeAll()
        reloadMyData()
        //performQuery()
        // Uncomment the following line to preserve selection between presentations
        // self.clearsSelectionOnViewWillAppear = false

        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
        // self.navigationItem.rightBarButtonItem = self.editButtonItem()
    }
    override func viewDidAppear(animated: Bool) {
        rooms.removeAll()
        appliance.removeAll()
        reloadMyData()
        print("Calling query")
        performQuery()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        print("Received memory warning")
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        if rooms.count == 0 {
            return 1
        }
        else {
            return rooms.count
        }
    }


    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCellWithIdentifier("downloadTableCell", forIndexPath: indexPath)
            as! DownloadTableViewCell
        print(" rooms: \(rooms.count)")
        // Configure the cell...
        if rooms.count == 0 {
            cell.downloadLabel.text = "Waiting for Cloud Data....."
        }
        else {
            cell.downloadLabel.text = rooms[indexPath.row] + " - " + appliance[indexPath.row]
        }
        return cell
    }


    /*
    // Override to support conditional editing of the table view.
    override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    // Return false if you do not want the specified item to be editable.
    return true
    }
    */

    /*
    // Override to support editing the table view.
    override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
    if editingStyle == .Delete {
    // Delete the row from the data source
    tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
    } else if editingStyle == .Insert {
    // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }
    }
    */

    /*
    // Override to support rearranging the table view.
    override func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {

    }

    func performQuery() {
        //let tempCloudID = "B16AEB76-AA36-491A-B3C7-775602466ECB"
        //application(application: UIApplication!, performFetchWithCompletionHandler completionHandler: ((UIBackgroundFetchResult) -> Void)!)
        // NOT SURE HOW TO CALL THE ABOVE LINE OR WHERE TO CALL IT
        let tempCloudID = myCurrentHouse[5]
        let predicate = NSPredicate(format: "CloudID = %@", tempCloudID)
        //let sort = NSSortDescriptor(key: "Room", ascending: true)

        let query = CKQuery(recordType: "ImagesSaved", predicate: predicate)
        query.sortDescriptors = [NSSortDescriptor(key: "Room", ascending: true)]
        publicDB.performQuery(query, inZoneWithID: nil , completionHandler: ({ results, error in
            if(error != nil) {
                dispatch_async(dispatch_get_main_queue()) {
                    self.notifyUser("Cloud Access Error", message: error!.localizedDescription)
                    print("Error")
                    self.rooms.removeAll()
                    self.appliance.removeAll()
                    self.rooms.append("Cloud Error")
                    self.appliance.append("Connected?")
                    //self.reloadMyData()


                }
            }
            else {
                if results!.count > 0 {
                    self.rooms.removeAll()
                    self.appliance.removeAll()
                    for record in results! {
                        self.rooms.append(record.objectForKey("Room") as! String)
                        self.appliance.append(record.objectForKey("Appliance") as! String)
                        print("I have results from query")
                    }
                    self.reloadMyData()
                }
                else {
                    print("query returned with no results")
                    self.rooms.removeAll()
                    self.appliance.removeAll()
                    self.rooms.append("No Data")
                    self.appliance.append(" ")
                    self.reloadMyData()

                }
            }
        }))
        //self.reloadMyData()
    }
    func notifyUser(title: String, message: String) -> Void {
        let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert)
        let cancelAction = UIAlertAction(title: "OK", style: .Cancel, handler: nil)
        alert.addAction(cancelAction)
        self.presentViewController(alert, animated: true, completion: nil)
    }
    func reloadMyData() {
        print("Reloading data \(self.rooms.count)")
        self.tableView.reloadData()
    }
}