swift - How to avoid multiple instances on Parse.com? -


this code parse docs. each time run it, have object created. want create once, next update (i.e. position etc, not counter of game score)

you parse, think it's simple common issue, how can fix it? suppose should retrieve objectid after first entry, make query, how ?

edit after wain comment

//mark: example parse     //*******************************************************      //single pfobject countains: score: 1337, playername: "sean plott", cheatmode: false      //let's make object      let kuserdefaultsparseid = "userdefaultsparseid"     let kidgotfromparse: anyobject? = nsuserdefaults.standarduserdefaults().objectforkey(kuserdefaultsparseid)       if kidgotfromparse == nil {  //let firstentry = "bi4rioeqda"      var gamescore = pfobject(classname:"gamescore")     gamescore["score"] = 1337     gamescore["playername"] = "sean plott"     gamescore["cheatmode"] = false     gamescore.saveinbackgroundwithblock {         (success: bool, error: nserror?) -> void in         if (success) {             // object has been saved.              var theid = gamescore.objectid              nsuserdefaults.standarduserdefaults().setobject(theid, forkey: kuserdefaultsparseid)             nsuserdefaults.standarduserdefaults().synchronize()          } else {             // there problem, check error.description         }     }     } else {   //        //retrive objects //        var query = pfquery(classname:"gamescore") //        query.getobjectinbackgroundwithid(firstentry) { //            (gamescore: pfobject?, error: nserror?) -> void in //            if error == nil && gamescore != nil { //                println(gamescore) //            } else { //                println(error) //            } //        }        var query = pfquery(classname:"gamescore")     query.getobjectinbackgroundwithid(theid) {         (gamescore: pfobject?, error: nserror?) -> void in         if error != nil {             println(error)         } else if let gamescore = gamescore {             gamescore["cheatmode"] = true             gamescore["score"] = 30             gamescore.saveinbackgroundwithblock(nil)         }     }     }     //*******************************************************

where have the object has been saved can id , save somewhere, user defaults. if have saved query it, otherwise create new 1 , save id.


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