Trying to use Promise in Custom Validator

Cool. Ok, so I’ve got a custom validator working in the strictest sense when validateString returns either true or false. I’ve noticed in the current docs that validating functions “can instead return a promise that will be resolved if the value is valid, or be rejected otherwise”. That is what I need to happen, but am having difficulty implementing it. I’m using the native JS Promises like so:

validateString: function(){
    var promise = new Promise(function(resolve, reject){

          confirmEmailAjax(function(boolean){
              if (boolean) {
                  resolve('Yay');
              } else {
                  reject('sad face');
              }
          });

     });

    return promise;
},

confirmEmailAjax is returning either true or false. @marcandre can you shed some light on this? Is the promise referenced in the docs utilized differently? If I need to open a thread on this some where else, I’ll happily do so. Let me know.

[rtmalone]

Yep, this works well. Gonna leave this here to help others:

validateString: function(){
    var deferred = new $.Deferred(function(){

        confirmEmailAjax(function(boolean){
            if (boolean) {
                deferred.resolve(boolean);
            } else {
                deferred.reject(boolean);
            }
        });
    });

    return deferred.promise();

Thanks!

[janwidmer]

Perfect, thanks, that shows how one can use custom validatior to get the same (or even more) than a remote validator can do (I am speaking about the custom dynamic error message 😃). Thanks a lot.