ios - JSON Array and CoreData in populating TableView -

sorry inconvenience, ios-beginner , have problem...

i have json, coredata , tableview, json fetched web , saving in documents-folder. after that, values json saves in coredata , tableview must populated it. f.e. take event_title..

i have controller:

import foundation import uikit import corelocation import coredata  class questlistviewcontroller: uiviewcontroller, uitableviewdatasource,uitableviewdelegate {  let managedobjectcontext = (uiapplication.sharedapplication().delegate as! appdelegate).managedobjectcontext  let eventscd = [events]()  @iboutlet weak var queststabbaritem: uitabbaritem!  var questcode : string = ""  var numberofcells:int = 0  @iboutlet weak var tableview: uitableview!  var numbers:[string] = []  override func viewdidload() {     super.viewdidload()      let entity = nsentitydescription.entityforname("events", inmanagedobjectcontext: managedobjectcontext!)      let events = events(entity: entity!, insertintomanagedobjectcontext: managedobjectcontext)      var error: nserror?     var jsonerror:nserror?     let jsonbundle = nsbundle.mainbundle()     let jsonfolder = nssearchpathfordirectoriesindomains(.documentdirectory, .userdomainmask, true)[0]as! string     let jsonpath = jsonfolder.stringbyappendingpathcomponent("\(self.questcode).json")      if let data = nsdata(contentsoffile:jsonpath, options:nsdatareadingoptions.datareadinguncached, error:&jsonerror) {          let stringdata = nsstring(data: data, encoding: nsutf8stringencoding)          let jsondict : nsdictionary? = nsjsonserialization.jsonobjectwithdata(data, options: nsjsonreadingoptions.mutablecontainers, error: &jsonerror) as? nsdictionary          if let err = jsonerror {             println("error parsing json")         }          if let jsondictionary = jsondict {             println("json parsed successfully")              let json_data = json(jsondictionary).arrayvalue              let id = jsondictionary["id"]!.stringvalue             let version: anyobject = jsondictionary["version"]!             let title: anyobject = jsondictionary["title"]!             let description: anyobject = jsondictionary["description"]!             let events_json = jsondictionary["events"] as! nsarray             let eventnumber: nsnumber = jsondictionary["events"]!.count nsnumber             self.numberofcells = events_json.count          }      }       // additional setup after loading view, typically nib. }  override func didreceivememorywarning() {     super.didreceivememorywarning()     // dispose of resources can recreated. } // mark: - table view data source func tableview(tableview: uitableview, didselectrowatindexpath indexpath: nsindexpath) {     tableview.deselectrowatindexpath(indexpath, animated: true)      let row = indexpath.row  }  // mark: - set number of rows func tableview(tableview: uitableview, numberofrowsinsection section: int) -> int {     return self.numberofcells }  // mark: - create cell func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {     let cell = tableview.dequeuereusablecellwithidentifier("cell", forindexpath: indexpath) as! uitableviewcell     cell.backgroundcolor = uicolor.clearcolor()     cell.backgroundview = uiview.new()     cell.selectedbackgroundview = uiview.new()      var imageview = uiimageview(frame: cgrectmake(10, 10, cell.frame.width - 0.3, cell.frame.height - 0.3))     let image = uiimage(named: "event_list_cell.png")     imageview.image = image     cell.backgroundview = uiview()     cell.backgroundview!.addsubview(imageview)     var row = indexpath.row     let eventsc = eventscd[indexpath.row]  /////here fatal breakpoint  //        cell.textlabel?.text = eventtable[row] as? string     cell.textlabel?.text = eventsc.valueforkey("event_title")![row] as? string      return cell }  } 

a class events: import foundation import coredata

@objc(events) class events: nsmanagedobject {      @nsmanaged var title: string     @nsmanaged var event_title: string  } 

and coremap: http://i.imgur.com/5ikwayn.png

and have error:

on line "let eventsc = eventscd[indexpath.row]" in controller output: "fatal error: array index out of range" 

where wrong?

this because in viewdidload setting numberofcells value > 0. don't have in eventscd. why when trying read value eventscd, index out of range error.

ideally number of rows returned should eventscd.count , eventscd should populated before loading table contents (or table reloaded once data , add values eventscd)