def METHOD_NAME(self):
    """Return author formated full name, e.g. Maupetit J"""
    if not self.requester:
        return '-'
    if self.requester.first_name or self.requester.last_name:
        return '%s %s' % (
            self.requester.first_name, self.requester.last_name)
    return self.requester.username