Error: [ngModel:datefmt] Expected `2015-05-29T19:06:16.693209Z` to be a date - Angular

Question

I'm working on angularapplication with Django with rest-framework..

The app receives it's info with json from the server.. One of the keys is created_time... The value of this field is format according to iso-8601, for example 2015-05-29T19:06:16.693209Z.

In the client I have a field:

<input type="time" ng-model="created_time">

But when the data is arriving I get this error:

Error: [ngModel:datefmt] Expected `2015-05-29T19:06:16.693209Z` to be a date http://errors.angularjs.org/1.3.13/ngModel/datefmt?p0=2015-05-29T19%3A06%3A16.693209Z
at REGEX_STRING_REGEXP (angular.js:63)
at Array.<anonymous> (angular.js:19807)
at Object.ngModelWatch (angular.js:23289)
at Scope.$get.Scope.$digest (angular.js:14235)
at Scope.$get.Scope.$apply (angular.js:14506)
at done (angular.js:9659)
at completeRequest (angular.js:9849)
at XMLHttpRequest.requestLoaded (angular.js:9790)

I already tried everything :( the format is exactly as the instructions in the docs of angular...

Answer 1

This must be happening with angular 1.3+. 1.3+ on wards ng-model for date/time input needs to be a valid date object, string representation of date is no longer allowed. You need to convert string to date object ($scope.created_time = new Date(dateString)) and bind it to the ng-model. If you follow the error link it has a clear description about the error and how to resolve it.

All date-related inputs like require the model to be a Date object. If the model is something else, this error will be thrown. Angular does not set validation errors on the in this case as those errors are shown to the user, but the erroneous state was caused by incorrect application logic and not by the user.

Answer 2

If you get your data from a REST Service, you can simply convert your fields to Date.

$http.get(url).success(function(data){
     $scope.data = data; // get row data
     $scope.data.mydatefield = new Date($scope.data.mydatefield); // convert filed to date
});

Answer 3

Create a simple directive that converts the model value:

HTML:

<input date-input type="time" ng-model="created_time">

Directive:

app.directive('dateInput', function(){
    return {
        restrict : 'A',
        scope : {
            ngModel : '='
        },
        link: function (scope) {
            if (scope.ngModel) scope.ngModel = new Date(scope.ngModel);
        }
    }
});