webix-ui attribute doesn't bind with angular model (Example Rules Attributes)

Webix JS
1

Hi everybody! sorry whether my inglish is not good, but i’ll try my best. I have a issue, i want to bind my model to some attribute of the webix-ui, like rules attributes, But it doesn’t work. I think that maybe the directive is loading the string of the attribute, but not the object. i will left a example:

Html:

	 <div webix-ui view="datatable" rules="rulesAttribute" select="cell" webix-data="records">
	   <div view="column" id="rating" sort="int" css="rating" editor="text" rules="ruleee">Rating</div>
	 </div>

Js:

var app = angular.module('webixApp', [ "webix" ]); 

app.controller("prueba", function($scope){

  $scope.rulesAttribute = {
    'rating' : function(value){
      return value > 0;        
  }

  }
})

Hope that you could understarnd. Wait for your answers!