根据HTML输入（角度）更改对象属性

Question

I don't know how to proceed with my problem, so that's why i'm hopping you guys could help. I have the HTML form which looks like this:

<form>
<div class="form-group">
        <label for="Uid" class="col-sm-1 control-label">Uid</label>
        <div class="col-sm-4">
            <input type="text" class="form-control" ng-model="subscriber.subscriberUid" >
        </div>
    </div>
    <div class="form-group">
        <label for="name" class="col-sm-1 control-label">Name</label>
        <div class="col-sm-4">
            <input type="text" class="form-control" ng-model="subscriber.name" >
        </div>
    </div>
    <div class="form-group">
        <label for="surname" class="col-sm-1 control-label">Surename</label>
        <div class="col-sm-4">
            <input type="text" class="form-control" data-ng-model="subscriber.surname">
        </div>
    </div>
</form>

And this is my angular app, where i store subscriber data, so i can insert it:

//subscriber
$scope.subscriber = {
     "subscriberUid" : ""
     "name": "",
     "surname": "",
};

So where is the tricky part for me.
If user inputs the subscriberUid then my subscriber object shoul look like this:

 //subscriber
    $scope.subscriber = {
         "subscriberUid" : ""
         "name": "",
         "surname": "",
    };

Otherwise it needs to look like this and back-end will auto generate it:

 //subscriber
    $scope.subscriber = {
         "name": "",
         "surname": "",
    };

How to achieve desired effect?

Thank you in advance!

Answer 1

You can check before sending to backend if $subscriber.subscriberUid is empty and just remove it from object with

        if($scope.subscriber.subscriberUid == ""){
            delete $scope.subscriber.subscriberUid;
        }