ios - Parse Local DataStore not showing pinned data -

i have tried make sure recommended steps followed in implementing parse local data store either pinning seems not working or querying pinned objects not working. have tried multiple options. below code view controller , have enabled datastore etc in app delegate file (using base parse starter project). please advise me problem.

output in console - able fetch data parse server either not able pin or retrieve or else..

 success 8888  optional([]) push notifications not supported in ios simulator. success 7777 optional([<restaurant: 0x7f98ca521f60, objectid: 0rrzncndje, localid: (null)> {     name = time; }]) 

thanks help!

import foundation import parse import parseui import uikit import foundation  class restaurantadmin: viewcontroller {     func getdatafromlocaldatastore() {         var username = pfuser.currentuser()?.username         var messages2: [anyobject]!         var query2: pfquery = pfquery(classname: "restaurant")         query2.fromlocaldatastore()         query2.wherekey("owner", equalto: username!)         query2.findobjectsinbackgroundwithblock { (objects, error) -> void in             if (error == nil) {                 messages2 = objects                 println(" success 8888 ")                 println(objects)             }             else {                 println("fail 8888")             }         }     }      func refreshrestaurantdatafromserver() {         var username = pfuser.currentuser()?.username         var query = pfquery(classname: "restaurant")         query.wherekey("owner", equalto: username!)         query.selectkeys(["name"])         var messages: [anyobject]!         query.findobjectsinbackgroundwithblock { (objects, error) -> void in             if (error == nil) {                 pfobject.pinallinbackground(objects, block: nil)                 println("success 7777")                 println(objects)             }             else {                 println("error 7777")             }         }     }      override func viewdidappear(animated: bool) {         super.viewdidappear(animated)         if (pfuser.currentuser()?.username != nil) {             refreshrestaurantdatafromserver()         }         getdatafromlocaldatastore()     } } 

since using query.selectkeys(["name"]) whole object not downloaded. saving partial object , querying using query2.wherekey("owner", equalto: username!). saved object not contain "owner" key.