141 lines
5.1 KiB
Python
141 lines
5.1 KiB
Python
# -*- coding: utf-8; -*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2020 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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DataSync for Rattail DB
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"""
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from sqlalchemy.orm.exc import NoResultFound
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from corepos.api import CoreWebAPI
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from corepos.db.office_op import Session as CoreSession, model as corepos
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from rattail.datasync import NewDataSyncImportConsumer
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class FromCOREAPIToRattail(NewDataSyncImportConsumer):
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"""
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Consumer for CORE POS (API) -> Rattail datasync
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"""
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handler_spec = 'rattail_corepos.importing.corepos.api:FromCOREPOSToRattail'
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def setup(self):
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super(FromCOREAPIToRattail, self).setup()
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self.establish_api()
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def establish_api(self):
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url = self.config.require('corepos.api', 'url')
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self.api = CoreWebAPI(url)
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def process_changes(self, session, changes):
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if self.runas_username:
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session.set_continuum_user(self.runas_username)
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# update all importers with current Rattail session
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for importer in self.importers.values():
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importer.session = session
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# also establish the API client for each!
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importer.establish_api()
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# sync all Customer-related changes
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types = [
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'Member',
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]
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for change in [c for c in changes if c.payload_type in types]:
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if change.deletion:
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# normal logic works fine for this (maybe?)
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self.invoke_importer(session, change)
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else:
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# import member data from API, into various Rattail tables
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member = self.get_host_object(session, change)
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self.process_change(session, self.importers['Customer'],
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host_object=member)
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people = self.importers['Person'].get_person_objects_for_member(member)
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for person in people:
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self.process_change(session, self.importers['Person'],
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host_object=person)
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self.process_change(session, self.importers['Member'],
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host_object=member)
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# process all remaining supported models with typical logic
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types = [
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'Department',
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'Subdepartment',
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'Vendor',
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'Product',
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]
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for change in [c for c in changes if c.payload_type in types]:
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self.invoke_importer(session, change)
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def get_host_object(self, session, change):
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if change.payload_type == 'Member':
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return self.api.get_member(change.payload_key)
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if change.payload_type == 'Department':
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return self.api.get_department(change.payload_key)
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if change.payload_type == 'Subdepartment':
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return self.api.get_subdepartment(change.payload_key)
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if change.payload_type == 'Vendor':
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return self.api.get_vendor(change.payload_key)
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if change.payload_type == 'Product':
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return self.api.get_product(change.payload_key)
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class FromCOREPOSToRattailBase(NewDataSyncImportConsumer):
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"""
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Base class for CORE POS -> Rattail data sync consumers.
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"""
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handler_spec = 'rattail_corepos.importing.corepos.db:FromCOREPOSToRattail'
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def begin_transaction(self):
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self.corepos_session = CoreSession()
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def rollback_transaction(self):
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self.corepos_session.rollback()
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self.corepos_session.close()
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def commit_transaction(self):
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# always rollback here, we don't want any accidents in CORE POS
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self.corepos_session.rollback()
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self.corepos_session.close()
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class FromCOREPOSToRattailProducts(FromCOREPOSToRattailBase):
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"""
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Handles CORE POS -> Rattail sync for product data.
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"""
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def get_host_object(self, session, change):
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if change.payload_type == 'Product':
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try:
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return self.corepos_session.query(corepos.Product)\
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.filter(corepos.Product.upc == change.payload_key)\
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.one()
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except NoResultFound:
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pass
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else:
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# try to fetch CORE POS object via typical method
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Model = getattr(corepos, change.payload_type)
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return self.corepos_session.query(Model)\
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.get(int(change.payload_key))
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