ios - Vote feature implementation -

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hello error saying could not find overload != accepts supplied documents , don't know change. stuck long time. trying implement vote feature in collection view. if user taps button adds 1 vote parse , shows on label. method wrong? below code collection view cell highlighted code error is.

import uikit import parseui import parse  var votes = [pfobject]()   class newcollectionviewcell: uicollectionviewcell {     var parseobject = pfobject(classname: "posts")     @iboutlet weak var postsimageview: pfimageview!     @iboutlet weak var postslabel: uilabel!     @iboutlet weak var voteslabel:uilabel?      override func awakefromnib() {         super.awakefromnib()         // initialization code         postslabel.textalignment = nstextalignment.center          print("passing11")      }       @ibaction func vote(sender: anyobject) { 
        if (parseobject != nil) 
            {                 if let votes = parseobject!.objectforkey("votes") as? int {                     parseobject!.setobject(votes + 1, forkey: "votes")                     parseobject!.saveinbackgroundwithtarget(nil, selector: nil)                     voteslabel?.text = "\(votes + 1) votes"                     print("passing22")                 }                 else                 {                     parseobject!.setobject(1, forkey: "votes")                     parseobject!.saveinbackgroundwithtarget(nil, selector: nil)                     voteslabel?.text = "1 votes"                      print("passing33")                 }             }}}

and have error "use of unresolved identifier parse objects"

          if (parseobject != nil) {      if let votes = parseobject!.objectforkey("votes") as? int {         cell.voteslabel?.text = "\(votes) votes"     }     else     {         cell.voteslabel?.text = "0 votes"     } } return cell}

any appreciated. thank you.

this compiler error appear if parseobject of type pfobject , not pfobject?. can see through code:

var parseobject = pfobject(classname: "posts")

the above line states parseobject of type pfobject , not optional. optional if initializer failable. if parseobject not optional, there no need nil check. hope helps.


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