How do I manipulate the parse data accordingly? - ios

Question

So basically I am trying to fetch data from parse and show the data accordingly.
How do I view the information and also add information to the tableview of my items.
I have a reservedList class in parse which gives out the userid and username of the person who confirmed a list.
I am not sure how to display the items on the view controller. Everytime i try to print the usernames to the label i get a blank label. and i would like to know how to implement the UITableView to show my data –
gettting error
"Could not cast value of type '__NSArrayM' (0x103cbb8d8) to
'NSString' (0x10412fb20)." when i print out the items.
I have a reservedCust class in parse which contains the following
this it the format I would like to view the data in
var usernames = [String]()
var userids = [String]()
var times = [String]()
var items = [String]()
#IBOutlet var reserveTime: UILabel!
#IBOutlet var reserveUser: UILabel!
#IBOutlet var reservedItems: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let reserveList = PFQuery(className: "reservedList")
reserveList.findObjectsInBackgroundWithBlock { (objects, error) -> Void in
if let objects = objects {
self.usernames.removeAll(keepCapacity: true)
self.times.removeAll(keepCapacity: true)
for object in objects {
if let username = object["username"] as? String {
self.usernames.append((object["username"] as? String)!)
}
var reservedUser = object["userid"] as? String
var query = PFQuery(className: "reservedCust")
query.whereKey("userid", equalTo: reservedUser!)
query.findObjectsInBackgroundWithBlock({ (objects, error) -> Void in
if let objects = objects {
for object in objects {
if let time = object["time"] as? String {
self.times.append((object["time"] as? String)!)
}
if let item = object["items"] {
self.items.append(object["items"] as! (String))
}
}
print(self.usernames)
print(self.times)
print(self.items)
}
})
}
}
}
// Do any additional setup after loading the view.
}

Answer 1

First declare two class variables.
var countOfObjects : Int! // Holds count for query objects from Parse
var allObjects : NSArray! // All queried objects from Parse
Than in your viewDidLoad()
override func viewDidLoad() {
super.viewDidLoad()
getDataFromParse() // A helper method to fetch data from Parse
// Initialize for countOfObjects to 0 on viewDidLoad
countOfObjects = 0
}
func getDataFromParse() {
let query = PFQuery(className:"YourClassName")
query.findObjectsInBackgroundWithBlock { (object : [PFObject]?, error : NSError?) -> Void in
print(object!.count)
//set count Of Objects
self.countOfObjects = object?.count
// Set allObjects
self.allObjects = object
//Reload TableView after query
self.YouRTableView.reloadData()
}
}
// MARK: - TableView DataSource
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return countOfObjects
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(YourCellIdentifier, forIndexPath: indexPath) as! YourTableViewCell
if let object = allObjects {
let currentObject = object.objectAtIndex(indexPath.row)
cell.textLabel?.text = currentObject.valueForKey("somekey") // Assign label text from parse.
}
return cell
}