# -*- coding: utf-8 -*-

###################################################################################
# 
#    Copyright (C) 2017 MuK IT GmbH
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
###################################################################################

from lxml import etree

import logging

from odoo.tools import view_validation

_logger = logging.getLogger(__name__)


@view_validation.validate('hierarchy')
def validate_parent(arch):
    if 'parent' in arch.attrib:
        if arch.xpath("//field[@name='%s']" % arch.attrib['parent']):
            return True
    return False