Retrieving Image, String and Int from Parse - ios

Question

I have to retrieve images from Parse, and I am working on this code:
class ViewControllerHome: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var MessageTable: UITableView!
let color = UIColor(red: 0.0/255.0, green: 105.0/255.0, blue: 92.0/255.0, alpha: 1)
let colore = UIColor.whiteColor()
let coloree = UIColor(red: 33.0/255.0, green: 33.0/255.0, blue: 33.0/255.0, alpha: 1)
var Username = [String]()
var Image = [PFFile]()
var Likes = [Int]()
override func viewDidLoad() {
super.viewDidLoad()
var refreshControl = UIRefreshControl()
refreshControl.addTarget(self, action: Selector("refreshPulled"), forControlEvents: UIControlEvents.ValueChanged)
loadData()
self.MessageTable.reloadData()
self.navigationController?.navigationBar.barTintColor = color
self.navigationController?.navigationBar.tintColor = colore
self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: colore]
UITabBar.appearance().barTintColor = coloree
UITabBar.appearance().tintColor = colore
UITabBar.appearance().translucent = false
self.MessageTable.delegate = self
self.MessageTable.dataSource = self
func refreshPulled() {
loadData()
self.MessageTable.reloadData()
refreshControl.endRefreshing()
}
}
func loadData() {
let query = PFQuery(className: "Messages")
query.orderByDescending("createdAt")
query.findObjectsInBackgroundWithBlock {
(posts: [PFObject]?, error: NSError?) -> Void in
if (error == nil) {
if let posts = posts as [PFObject]? {
for post in posts{
self.Image.append(post["Post"] as! PFFile)
self.Username.append(post["Name"] as! String)
self.Likes.append(post["Vote"] as! Int)
}
}
}
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.MessageTable.dequeueReusableCellWithIdentifier("cell")! as! TableViewCellHome
var imagesToLoad = self.Image[indexPath.row] as PFFile
var imagesUser = self.Username[indexPath.row] as String
var imageLikes = self.Likes[indexPath.row] as Int
//This line gives me an error: call can throw, but is not marked with 'try' and the error is not handled
var imagesdata = imagesToLoad.getData()
var finalizedImage = UIImage(data: imagesdata)
cell.PostImage.image = finalizedImage
cell.UsernameLabel.text = imagesUser
cell.LikesLabel.text = "\(imageLikes)"
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return Username.count
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
This code should get and display Image, string and Int Value from parse's backend. The problem is that nothing is displayed. How can I change the code so that this will display correctly? There is also an error at the line:
var imagesdata = imagesToLoad.getData()
This line tells me
call can throw, but is not marked with 'try' and the error is not handled
Thanks in advance to anyone that can help me solve this problem.