GetDataInBackgroundWithBlock | imageData is returning a nil value - ios

Question

So I am saving some objects to the localDatastore using parse.
//Pin the objects here!!
var imageObject = PFObject(className: "img")
imageObject["theFile"] = imageFile
imageObject.pinInBackgroundWithBlock({ (success, error) -> Void in
if error == nil {
imageObject.saveEventually()
println("object pinned in background")
} else {
println(error)
}
})
Then in the viewDidLoad I am querying the objects and appending them into an array of PFFile's
var query = PFQuery(className: "img")
query.fromLocalDatastore()
query.findObjectsInBackgroundWithBlock { (objects, error) -> Void in
if error == nil{
var objects : AnyObject = objects as! AnyObject
for object in objects as! [AnyObject]{
self.testImages.append(object["theFile"] as! PFFile)
}
} else {
println(error)
}
}
With this array now containing data. I am trying to insert the images into the tableView
if testImages.count >= 1{
testImages[indexPath.row].getDataInBackgroundWithBlock({ (imageData, error) -> Void in
if error == nil{
//The app crashes here ~ fatal error: unexpectedly found nil while unwrapping an Optional value
cell.theImage.image = UIImage(data: imageData!)
} else {
println(error)
}
})
}

Answer 1

Because you are using a tableview, I think the best way is to download all the images from Parse and save it to an array. Then in the cellForRowAtPath method then you assign each index of that array to the cell.imageView.image
var query = PFQuery(className:"img")
query.findObjectsInBackgroundWithBlock { (objects:[AnyObject]?, error:NSError?) -> Void in
if error == nil
{
if let objects = objects as? [PFObject]
{
for one in objects
{
var pictureImage = one["theFile"] as! PFFile
pictureImage.getDataInBackgroundWithBlock({ (dataToget:NSData?, error:NSError?) -> Void in
if error == nil
{
if let Image = UIImage(data: dataToget)
{
// save the image to array
// reload the tableview
}
}
})
}
}
}
}