Space update problem

gistfile1.js

//Update data in the space
space.getSubResources({
	relation: openapp.ns.role+"data",
	type: "classon:question",
	onAll: function(arr){
		var found = false;
		for(var i=0; i<arr.length; i++){
			if(arr[i].uri == question.id){
				//Set representation IS NOT WORKING!!!!!
				arr[i].setRepresentation({
					description : question.description,
					votes: question.votes
				}, "rdfjson",function(sub){
					console.log("UPDATED RESOURCE");
					console.log(sub);
					//Sent intent
					publishResourceUpdate(question, "ACTION_UPDATE");
					//Update UI
					//show_questions();
				});
				console.log("Resource Found! uri:"+question.id);
				found = true;
				break;
			}
		}
		if(!found){
			console.log("Resource NOT Found! uri:"+question.id);	
		}
	}
});