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# Copyright (C) 2015 Chintalagiri Shashank 

# 

# This file is part of Tendril. 

# 

# 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/>. 

""" 

This file is part of tendril 

See the COPYING, README, and INSTALL files for more information 

""" 

 

from sqlalchemy.sql import exists 

from sqlalchemy.orm.exc import MultipleResultsFound 

from sqlalchemy.orm.exc import NoResultFound 

 

import tendril.utils.db 

from model import InventoryLocationCode 

 

from tendril.utils.config import INVENTORY_LOCATIONS 

 

from tendril.utils import log 

logger = log.get_logger(__name__, log.DEFAULT) 

 

 

def get_inventorylocationcode(name, create=False): 

    with tendril.utils.db.get_session() as session: 

        try: 

            return session.query( 

                InventoryLocationCode).filter_by(name=name).one().id 

        except MultipleResultsFound: 

            logger.warning("Found Multiple Codes for Inventory Location : " + 

                           name) 

        except NoResultFound: 

            if create is True: 

                obj = InventoryLocationCode(name=name) 

                session.add(obj) 

                return obj.id 

            else: 

                return None 

 

 

def populate_inventorylocationcodes(): 

    logger.info("Populating Inventory Location Codes") 

    for location in INVENTORY_LOCATIONS: 

        with tendril.utils.db.get_session() as session: 

            if not session.query( 

                    exists().where( 

                        InventoryLocationCode.name == location) 

            ).scalar(): 

                logger.info("Creating location code for : " + location) 

                obj = InventoryLocationCode(name=location) 

                session.add(obj) 

            else: 

                logger.debug("Found preexisting location code for : " + 

                             location)