[__NSOrderedSetM objectAtIndex:]: Index 10 beyond bounds [ 0 .. 9[ - ios

Question

I changed my main data structure containing all of my JSON objects to be used in my table view from a NSMutableArray to a NSMutableOrderedSet. Now, my app loads the first ten objects from the API correctly but the second I want to scroll down, it crashes. Any suggestions ?
override func scrollViewDidScroll(scrollView: UIScrollView) {
if (scrollView.contentOffset.y + view.frame.size.height > scrollView.contentSize.height * 0.8) {
populateEditorials()
}
}
func populateEditorials() {
if populatingEditorials {
return
}
populatingEditorials = true
Alamofire.request(GWNetworking.Router.Editorials(self.currentPage)).responseJSON() { response in
if let JSON = response.result.value {
/*
if response.result.error == nil {
*/
/* Creating objects for every single editorial is long running work, so we put that work on a background queue, to keep the app very responsive. */
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0)) {
// Making an array of all the node IDs from the JSON file
var nodeIDArray : [Int]
/* var nodeCounter : Int = 0 */
if (JSON .isKindOfClass(NSDictionary)) {
for node in JSON as! Dictionary<String, AnyObject> {
var nodeIDValue = node.0
var lastItem : Int = 0
self.nodeIDArray.addObject(nodeIDValue)
if var editorialElement : EditorialElement = EditorialElement(title: "init", nodeID: 0, timeStamp: 0, imageURL: "init", author: "init", issueNumber: "init", volumeNumber: "init", articleContent: "init") {
editorialElement.title = node.1["title"] as! String
editorialElement.nodeID = Int(nodeIDValue)
let timeStampString = node.1["revision_timestamp"] as! String
editorialElement.timeStamp = Int(timeStampString)!
editorialElement.imageURL = String(node.1["image_url"])
editorialElement.author = String(node.1["author"])
editorialElement.issueNumber = String(node.1["issue_int"])
editorialElement.volumeNumber = String(node.1["volume_int"])
editorialElement.articleContent = String(node.1["html_content"])
lastItem = self.editorialObjects.count
self.editorialObjects.addObject(editorialElement)
/* Sorting the elements in order of newest to oldest (as the array index increases] */
self.editorialObjects.sort({ $0.timeStamp > $1.timeStamp })
let indexPaths = (lastItem..<self.editorialObjects.count).map { NSIndexPath(forItem: $0, inSection: 0) }
dispatch_async(dispatch_get_main_queue()) {
self.editorialsTableView.reloadData()
// self.editorialsTableView.insertRowsAtIndexPaths(indexPaths, withRowAnimation: UITableViewRowAnimation.Automatic) // Animation implemented for testing, to be removed for version 1.0
}
/*
nodeIDArray[nodeCounter] = jsonValue{nodeCounter}.string
let editorialInfos : EditorialElement = ((jsonValue as! NSDictionary].1["\(nodeIDArray[nodeCounter]]"] as! [NSDictionary]].map { EditorialElement(title: $0["title"] as! String, nodeID: $0["nid"] as! Int, timeStamp: $0["revision_timestamp"] as! Int, imageURL: $0["image_url"] as! String, author: $0["author"], issueNumber: $0["issue_int"] as! Int, volumeNumber: $0["volume_int"] as! Int, articleContent: $0["html_content"] as! String] // I am going to try to break this line down to simplify it and fix the build errors
*/
}
print(self.editorialObjects.count)
}
}
/* Sorting the elements in order of newest to oldest (as the array index increases] */
self.editorialObjects.sort({ $0.timeStamp > $1.timeStamp })
let lastItem = self.editorialObjects.count
let indexPaths = (lastItem..<self.editorialObjects.count).map { NSIndexPath(forItem: $0, inSection: $0) }
dispatch_async(dispatch_get_main_queue()) {
self.editorialsTableView.insertRowsAtIndexPaths(indexPaths, withRowAnimation: UITableViewRowAnimation.Automatic) // Animation implemented for testing, to be removed for version 1.0
}
self.currentPage++
} */
}
self.populatingEditorials = false
}
}
}
Why is my app crashing once I try to load the second set of 10 objects?
EDIT 1: cellForRowAtIndexPath code
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let row = indexPath.row
/*
cell.editorialHeadlineLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleHeadline]
cell.editorialHeadlineLabel.text = editorialHeadline[row]
cell.editorialAuthorLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleSubheadline]
cell.editorialAuthorLabel.text = editorialAuthor[row]
cell.editorialPublishDateLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleSubheadline]
cell.editorialPublishDateLabel.text = editorialPublishDate[row]
*/
let cell = tableView.dequeueReusableCellWithIdentifier(EditorialTableCellIdentifier, forIndexPath: indexPath) as! EditorialsTableViewCell
let title = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).title
let timeStamp = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).timeStamp
let imageURL = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).imageURL
let author = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).author
let issueNumber = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).issueNumber
let volumeNumber = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).volumeNumber
let articleContent = (editorialObjects.objectAtIndex(indexPath.row) as! EditorialElement).articleContent
/* Unlike the Pictures Collection View, there is no need to create another Alamofire request here, since we already have all the content we want from the JSON we downloaded. There is no URL that we wish to place a request to to get extra content. */
cell.editorialHeadlineLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleHeadline)
cell.editorialHeadlineLabel.text = title
cell.editorialAuthorLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleSubheadline)
cell.editorialAuthorLabel.text = author
cell.editorialPublishDateLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleSubheadline)
cell.editorialPublishDateLabel.text = String(timeStamp)
cell.editorialVolumeAndIssueLabel.font = UIFont.preferredFontForTextStyle(UIFontTextStyleSubheadline)
cell.editorialVolumeAndIssueLabel.text = "Volume \(volumeNumber) - Issue \(issueNumber)"
return cell
}
EDIT 2: Screenshot of editorialObjects.count as I scroll down the view.