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Oerhaul the Vendor import/export between Rattail and CORE

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also, add new DB schema specific to this integration, to hold PKs etc.
This commit is contained in:
Lance Edgar 2020-03-04 19:05:55 -06:00
parent f9071ac6e9
commit af1e38aa18
10 changed files with 311 additions and 30 deletions
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rattail_corepos/corepos/util.py Normal file
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# -*- coding: utf-8; -*-
################################################################################
#
# Rattail -- Retail Software Framework
# Copyright © 2010-2020 Lance Edgar
#
# This file is part of Rattail.
#
# Rattail is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# Rattail 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 General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# Rattail. If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
"""
CORE-POS misc. utilities
"""
import sqlalchemy as sa
from corepos.db.office_op import Session as CoreSession, model as corepos
from rattail.db.util import short_session
def get_max_existing_vendor_id(session=None):
"""
Returns the "last" (max) existing value for the ``vendors.vendorID``
column, for use when creating new records, since it is not auto-increment.
"""
with short_session(Session=CoreSession, session=session) as s:
return s.query(sa.func.max(corepos.Vendor.id))\
.scalar() or 0