@classmethod
def get_from_string(cls, msgctxt):
    """
        Looks for the SegmentTranslationContext that the given string represents.
        """
    object_id, path = msgctxt.split(':')
    path_id = cls.get_path_id(path)
    return cls.objects.get(object_id=object_id, path_id=path_id)
