jinx - using generated data models with the REST service

gistfile1.js

this.registerOnServer = function () {
    $.post("/api/ToDo", getDataModel());
};

this.removeFromServer = function () {
    $.ajax({
        type: "DELETE",
        url: "/api/ToDo/" + self.guid
    });
};

this.updateOnServer = function() {
    $.ajax({
        type: "PUT",
        url: "/api/ToDo/" + self.guid,
        data: getDataModel()
    });
};

function getDataModel() {
    var item = new ToDoItem();
    item.guid = self.guid;
    item.title = self.title();
    item.completed = self.completed();

    return item;
}