How to update a tab view from child page in Angular.JS

So I'm trying to update a list view in a parent tab window using Angular.js with the Ionic Framework, but I can't quite seem to figure out how to do it.

Here is the code for the child window:

    $scope.currentUsername = Parse.User.current().get("username");

$scope.saveChanges = function saveChanges(user){
    var currentUser = Parse.User.current();
    var newUserName = user.newUsername;

    currentUser.set("username", newUserName);
    currentUser.save(null, {
        success: function(currentUser){
        alert("Changes successfully made!");
        }
    });
    $state.go('tab.more');
}

$scope.cancelChanges = function cancelChanges(){
$state.go('tab.more');
}

And I am trying to take the data once it's sent to Parse back to the parent view but I don't know how to refresh the page after the script is run. In my function cancelChanges() I simply used $state.go to go back to the parent view because why update the view when there is not data to be updated.

Here is the code for my parent window:

    $scope.currentUser = Parse.User.current().get("username");

$scope.editProfile = function editProfile(){
$state.go('tab.more-editusername');
}

$scope.logOut = function logOut(){
Parse.User.logOut();
alert("Logout successful!");
$state.go('login');
}