AngularUI Typeahead不显示异步数据

Question

我很确定我做得对，所以我不知道为什么它不起作用，也许我错过了一些明显的东西。这是应该具有typeahead的输入：

<input type="text" class="form-control" typeahead-min-length="4" typeahead-loading="loadingLocations" ng-model="modal.modalObject.facility_id" ng-required="true" typeahead="fac.id as fac.facility_name for fac in modal.parentCtrl.queryFacilities($viewValue)" />
<i ng-show="loadingLocations" class="glyphicon glyphicon-refresh"></i>

然后在后端我这样做：

this.queryFacilities = function(query){
   qualificationFactory.queryFacilities(query).then(function(data){
        return data;
    },function(error){
        $log.error(error);
    });
};

返回

[
  {
    "id": 1,
    "facility_name": "Facility 1",
    "address": "",
    "city": "",
    "state": "",
    "zip": 012345
  },
  {
      ...
    }
]

我输入时可以看到http请求，但是intput什么也没做。是什么给了什么？

谢谢：）

Answer 1

I had to return the value as a promise because the return inside of the http was not getting returned by queryFacilities

this.queryFacilities = function(query){
    var deferred = $q.defer();
   qualificationFactory.queryFacilities(query).then(function(data){
        deferred.resolve(data);
    },function(error){
        deferred.reject(error);
        $log.error(error);
    });
    return deferred.promise;
};