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As far as I can tell, AngularJS does not serialize a form field if it is empty. But, I need this fields to be in the JSON that is generated, even if they are empty. I am trying to query that JSON, and it will fail if the fields descriptors are not there. Any tips on how to get AngularJS to do this?
In the example below, if you entered "John" into the name field, and nothing in the optionalval field, the json that is formed is this {name: John}. But I would like it to be like this {name:'John', optionalval:''}. This is in the case of a "create new" form where optional fields might not have any values. But, the fields need to be sent whether they have values or not.
<!doctype html>
<html>
<head>
<title>Serialize Test</title>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $http) {
$scope.addnew = function(){
$http.put('/newthing.json', JSON.stringify($scope.item))
.success(function(){
})
.error(function(){
});
};
});
</script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<label for="name">Name:</label>
<input type="text" id="name" ng-model="item.name" required>
<label for="optionalval">Don't put anything here:</label>
<input type="text" id="optoinalval" ng-model="item.optionalval">
<button ng-click="addnew()">Serialize</button>
</body>
</html>
245
One way is to preinitialize model with empty string. For example, by setting model value in controller:
$scope.item = {optionalval: ''};
Here is a demo:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $http) {
$scope.item = {optionalval: ''};
$scope.addnew = function() {
$http.put('/newthing.json', JSON.stringify($scope.item))
.success(function() {})
.error(function() {});
};
});<script src="https://code.angularjs.org/1.4.3/angular.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<label for="name">Name:</label>
<input type="text" id="name" ng-model="item.name" required>
<label for="optionalval">Don't put anything here:</label>
<input type="text" id="optionalval" ng-model="item.optionalval">
<button ng-click="addnew()">Serialize</button>
<pre>{{item | json}}
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