def __load_data(self, folder):
        self._stories = {}
        self._status = {}
        self._projects = {}

        for filename in glob.glob(os.path.join(folder, "*.story")):
            story = UserStory.load(filename)
            self._stories[story.id] = story

        for filename in glob.glob(os.path.join(folder, "*.proj")):
            proj = Project.load(filename)
            self._projects[proj.id] = proj

        for filename in glob.glob(os.path.join(folder, "*.status")):
            status = Status.load(filename)
            self._status[status.id] = status