angularjs - Can't $update or $set ~ "undefined is not a function" ~ AngularFire -

what i'm trying do: update status "taken" when chat closed.

issue: can't $scope.currentchat.$set() or $scope.currentchat.$update() work when trying update status. (see $scope.close() function.)

what i've tried: various methods including $set, $update; don't know. lot of things. been researching several hours, , can't find solution works.

notes:

$scope.currentchat.$set({status:"taken"}); doesn't work. $scope.currentchat.$getrecord('status'); works. returns:

object {$value: "open", $id: "status", $priority: null}

so going on here? why can't seem set status taken?

the issue in $scope.close() function, when trying update status:

// $scope.close // - closes current ticket. $scope.close = function() {     // $scope.ticketobject.status = "taken";                 // $scope.currentchat.$set({status:"taken"});     console.log("===========================");     console.log("status:");     console.log($scope.currentchat.$getrecord('status'));     console.log($scope.currentchat['status']);     console.log("===========================");     $scope.ticketobject = {};     $scope.ticket = false;     $scope.toggle(); } 

here's code:

bloop.controller('homectrl', ['$scope', '$firebase', function($scope, $firebase) {      console.log("homecontroller!");     var url = 'https://**********.firebaseio.com/tickets/';     var ref = new firebase(url);      // $scope.createticket     // - function makes connection firebase , creates ticket.     $scope.createticket = function() {         $scope.tickets = $firebase(ref).$asarray();         $scope.tickets.$add($scope.ticketobject).then(function(r) {             var id = r.name();             $scope.currentfbid = id;             $scope.synctickets();             console.log("===========================");             console.log("created ticket: " + $scope.currentfbid);             console.log("url: " + url + $scope.currentfbid);             console.log("===========================");         });     }      // $scope.synctickets     // - function makes connection firebase , syncs ticket $scope update tickets.     $scope.synctickets = function() {         var ticketrefurl = new firebase(url + $scope.currentfbid);         $scope.currentchat = $firebase(ticketrefurl).$asarray();         $scope.currentchat.$save($scope.ticketobject);          var archiverefurl = new firebase(url + $scope.currentfbid + "/archive");         $scope.currentchat.archive = $firebase(archiverefurl).$asarray();          console.log("===========================");         console.log("saved ticket: " + $scope.currentfbid);         console.log("url: " + ticketrefurl);         console.log("archive url: " + archiverefurl);         console.log("===========================");     }      // $scope.post     // - function pushes whatever typed chat chat archive.     // - $scope.ticketobject.archive (is array of objects)     $scope.post = function(name) {         // push ticketobject.archive array...         $scope.ticketobject.archive.push({             "name" : name,             "text" : $scope.chattext         });          // logging array make sure exists...         console.log("===========================");         console.log("chat archive:");         console.log($scope.ticketobject.archive);         console.log("===========================");          $scope.currentchat.archive.$add({             "name" : name,             "text" : $scope.chattext         });          // resets text area it's empty...         $scope.chattext = "";     } // works      // $scope.close     // - closes current ticket.     $scope.close = function() {         // $scope.ticketobject.status = "taken";                     // $scope.currentchat.$set({status:"taken"});         console.log("===========================");         console.log("status:");         console.log($scope.currentchat.$getrecord('status'));         console.log($scope.currentchat['status']);         console.log("===========================");         $scope.ticketobject = {};         $scope.ticket = false;         $scope.toggle();     }      // $scope.toggle     // - function toggles chat either open or closed.     $scope.toggle = function() {         if($scope.togglestate === false) {             $scope.togglestate = true;             $scope.checkticket();         } else if($scope.togglestate === true) {             $scope.togglestate = false;         }     }      // $scope.checkticket     // - function checks see if there's existing ticket.     // - if there's not existing ticket, creates one.     $scope.checkticket = function() {         if($scope.ticket === false) {             // generate new ticket data             $scope.ticketobject = newticket();              // create ticket             $scope.createticket();              // ticket exists.             $scope.ticket = true;          }     }      function newticket() {         var ticketid = generateticketid();          var newticket = {             id: ticketid,             status: "open",             name: "n/a",             email: "n/a",             date: generatedate(),             opid: "unassigned",             opname: "unassigned",             archive: [],             notes: []         }          return newticket;     }      function generateticketid() {         var chars = "0123456789abcdefghjklmnpqrstuvwxyz";         var result = '';         for(var i=12; i>0; --i) {             result += chars[math.round(math.random() * (chars.length - 1))];         }         return result;     }      function generatedate() {         var today = new date();         var dd = today.getdate();         var mm = today.getmonth() + 1;         var yyyy = today.getfullyear();          if(dd < 10) {             dd = '0' + dd;         }          if(mm < 10) {             dd = '0' + mm;         }          var date = mm + "/" + dd + "/" + yyyy;         return date;     } }]); 

$update , $set part of $firebase api. attempting call them on synchronized array returned $asarray(), $firebasearray instance. has its own api, includes neither update nor set.