'Update the user\'s full name.
Arguments:
user (User): The user to update.
full_name (unicode): The user\'s updated full name.
Returns:
HttpResponse or None'

def _update_full_name(self, user, full_name):

    try:
        update_account_settings(user, {'name': full_name})
    except UserNotFound:
        return HttpResponseBadRequest(_('No    profile    found    for    user'))
    except AccountValidationError:
        msg = _('Name    must    be    at    least    {min_length}    characters    long.').format(min_length=NAME_MIN_LENGTH)
        return HttpResponseBadRequest(msg)
