Arithmetic operation fails on AnyObject - ios

Question

I'm doing an app in iOS Swift with Parse. I need to increment 1 every time a product is viewed. Following is my code to do that:
var prodQuery = PFQuery(className: "prodDet")
let id = prodId[currprod] as String
prodQuery.whereKey("objectId", equalTo:id)
prodQuery.findObjectsInBackgroundWithBlock {
(objects: [AnyObject]!, error: NSError!) -> Void in
if error == nil {
for object in objects {
var key1: Int = object["key1Total"]! as Int
var key1New: Int = key1 + 1
object["key1Total"] = key1New
}
}
}
The above code gives error "#lvalue$T5 is not identical to AnyObject...". Is anything wrong the way I'm dealing with AnyObject object here; How do we do arithmatic calculation on Parse AnyObjects?
Could somebody please shed some light?

Answer 1

I sorted it out, seems like I should cast the object as PFObject and use object.setValue. The following is the working code:
var prodQuery = PFQuery(className: "prodDet")
let id = prodId[currprod] as String
prodQuery.whereKey("objectId", equalTo:id)
prodQuery.findObjectsInBackgroundWithBlock {
(objects: [AnyObject]!, error: NSError!) -> Void in
if error == nil {
for object in objects as [PFObject] {
var keyVal = object["key1Total"]! as Int
var keyNew = keyVal + 1
object.setValue(keyNew, forKey: "key1Total")
object.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
//
} else {
//
}
}
}
}
}
object.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
//
} else {
//
}
}
}
}
}