swift - Difficulty retrieving Parse Object Field Values -

i able retrieve "project" objects parse core, , "projectname" values returned me , printed log. thought these values update productnames array displayed in tableview. prototype tableview cell defined in dealcell class image , label. when run app, tableview empty. did miss?

my tableview's class:

var productids = [string]() var productnames = [string]()  override func viewdidload() {     super.viewdidload()      self.productids.removeall(keepcapacity: true)     self.productnames.removeall(keepcapacity: true)      // ask current user's personal list of saved pfobject ids.     let ids = pfuser.currentuser()?.objectforkey("accepted") as! nsarray     print(ids)      // requesting project objects based on ids retrieved.     let projectretrieval = pfquery(classname: "project")     projectretrieval.wherekey("objectid", containedin: ids [anyobject])     projectretrieval.findobjectsinbackgroundwithblock({ (objects, error) -> void in         if let objects = objects {             object in objects {                  //append productnames array retrieved projectnames                 self.productnames.append(object["projectname"] as! string)                  // line prints array of product names retrieved.                 print("projectnames: \(self.productnames)")              }         }     })  }  // number of rows func tableview(tableview: uitableview, numberofrowsinsection section: int) -> int {     return self.productnames.count; }  // assign productnames labels in each cell. func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {      let cell = self.tableview.dequeuereusablecellwithidentifier("dealcell", forindexpath: indexpath) as! dealcell      cell.productname.text = self.productnames[indexpath.row]       return cell  } 

my print output strange, looks this, getting projectnames successfully:

projectnames: ["personal drone"] projectnames: ["personal drone", "prosthetic limb patent"] 

you should refresh tableview method;

self.tableview.reloaddata() 

you can put code after findobjectsinbackgroundwithblock callback closure in case;

projectretrieval.findobjectsinbackgroundwithblock({ (objects, error) -> void in         if let objects = objects {             object in objects {                  //append productnames array retrieved projectnames                 self.productnames.append(object["projectname"] as! string)                  // line prints array of product names retrieved.                 print("projectnames: \(self.productnames)")              }         }        self.tableview.reloaddata()     })