added persistence clearCompletedItems

todo-example/angularjs/persistencejs/js/controllers.js

@@ -59,6 +59,7 @@ App.Controllers.TodoController = function (persistencejs) {
         angular.forEach(oldTodos, function(todo) {
             if (!todo.done) self.todos.push(todo);
         });
+		persistencejs.clearCompletedItems();
     };
 
     self.hasFinishedTodos = function() {

todo-example/angularjs/persistencejs/js/services.js

@@ -28,6 +28,10 @@ angular.service('persistencejs', function() {
 			});
 		},
 		
+		clearCompletedItems: function(){
+			Todo.all().filter('done','=',true).destroyAll();
+		},
+		
 		remove: function(item){
 			Todo.all().filter('content','=',item.content).destroyAll();
 		},