[SOLVED] Angular bootstrap datepicker date format does not format ng-model value

Angular bootstrap datepicker date format does not format ng-model value

I am using bootstrap date-picker in my angular application. However when I select a date from that date-picker underlying ng-model that I have bind gets updated I want that ng-model in one date format 'MM/dd/yyyy'. but it every times makes date like this

"2009-02-03T18:30:00.000Z"

instead of

02/04/2009

I have created a plunkr for the same plunkr link

My Html and controller code is like below

<!doctype html>
<html ng-app="plunker">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.10/angular.js"></script>
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.11.0.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>

<div ng-controller="DatepickerDemoCtrl">
    <pre>Selected date is: <em>{{dt | date:'MM/dd/yyyy' }}</em></pre>
    <p>above filter will just update above UI but I want to update actual ng-modle</p>
    

    <h4>Popup</h4>
    <div class="row">
        <div class="col-md-6">
            <p class="input-group">
              <input type="text" class="form-control"
              datepicker-popup="{{format}}" 
              ng-model="dt"
              is-open="opened" min-date="minDate"
              max-date="'2015-06-22'" 
              datepicker-options="dateOptions" 
              date-disabled="disabled(date, mode)" 
              ng-required="true" close-text="Close" />
              <span class="input-group-btn"> 
                <button type="button" class="btn btn-default" ng-click="open($event)">
                <i class="glyphicon glyphicon-calendar"></i></button>
              </span>
            </p>
        </div>
    </div>
    <!--<div class="row">
        <div class="col-md-6">
            <label>Format:</label> <select class="form-control" ng-model="format" ng-options="f for f in formats"><option></option></select>
        </div>
    </div>-->

    <hr />
    {{dt}}
</div>
  </body>
</html>

Angular controller

angular.module('plunker', ['ui.bootstrap']);
var DatepickerDemoCtrl = function ($scope) {


  $scope.open = function($event) {
    $event.preventDefault();
    $event.stopPropagation();

    $scope.opened = true;
  };

  $scope.dateOptions = {
    formatYear: 'yy',
    startingDay: 1
  };

 
  $scope.format = 'dd-MMMM-yyyy';
};

UPDATE

I am calling below method for posting my data and VAR is array of size 900 which contains date-picker variables.

public SaveCurrentData(formToSave: tsmodels.ResponseTransferCalculationModelTS) {

        var query = this.EntityQuery.from('SaveFormData').withParameters({
            $method: 'POST',
            $encoding: 'JSON',
            $data: {
                VAR: formToSave.VAR,
                X: formToSave.X,
                CurrentForm: formToSave.currentForm,
            }
        });

        var deferred = this.q.defer();

        this.manager.executeQuery(query).then((response) => {
            deferred.resolve(response);
        }, (error) => {
                deferred.reject(error);
            });

        return deferred.promise;
    }

Solution

Although similar answers have been posted I'd like to contribute what seemed to be the easiest and cleanest fix to me. Assuming you are using the AngularUI datepicker and your initial value for the ng-Model does not get formatted simply adding the following directive to your project will fix the issue:

angular.module('yourAppName')
.directive('datepickerPopup', function (){
    return {
        restrict: 'EAC',
        require: 'ngModel',
        link: function(scope, element, attr, controller) {
      //remove the default formatter from the input directive to prevent conflict
      controller.$formatters.shift();
  }
}
});

I found this solution in the Github AngularUI issues and therefore all credit goes to the people over there.