ios - Querying the User table with a users objectId queried from another table -

i'm trying query user table users objectid queried table.

here's code:

func queryfriendstable() {     var queryfriends = pfquery(classname: "activity")     queryfriends.wherekey("type", equalto: "friend")     queryfriends.wherekey("fromuser", equalto: pfuser.currentuser()!)     queryfriends.includekey("touser")      var queryusertable = pfuser.query()     queryusertable!.wherekey("objectid", matcheskey: "touser", inquery: queryfriends)     queryusertable!.findobjectsinbackgroundwithblock {         (objects: [anyobject]?, error: nserror?) -> void in          if error == nil {             // find succeeded             // found objects             if let objects = objects as? [pfobject] {                 object in objects {                     self.friendnamesarray.addobject(object["username"]!)                      println(self.friendnamesarray)                 }             }         }     } } 

nothing being returned when run query. think problem has fact touser objectid in activity table pointer , not string. (the touser value try use in matcheskey spot pointer)

so how can objectid string pointer object using inquery method?

your suspicions correct. parse won't find pointers when looking through user's class. instead you'll need create string variable , set equal result of queryfriends. means you'll have run query first, pointer back, , access it's objectid field string in order use in following query.