Trying to set Parse User ACL

gistfile1.js

var user = new Parse.User({
  name: name,
  username: email,
  email: email,
  password: password
});

user.signUp().then(
  function() {
    var user = Parse.User.current();
    if ( user ) {
      var customACL = new Parse.ACL(user);
      customACL.setRoleWriteAccess(false);
      customACL.setPublicWriteAccess(false)
      user.setACL(customACL);
    }
    this.transitionTo('home');
  }.bind(this),
  function(error) {
    // Show the error message somewhere and let the user try again.
    alert("Error: " + error.code + " " + error.message);
  });