81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2012 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 Affero General Public License as published by the Free
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# Software Foundation, either version 3 of the License, or (at your option)
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# any later 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 Affero General Public License for
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# more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with 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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Application Entry Point
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"""
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from pyramid.config import Configurator
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import os.path
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import edbob
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from sqlalchemy import engine_from_config
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from .db import Session
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from zope.sqlalchemy import ZopeTransactionExtension
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from pyramid.authentication import SessionAuthenticationPolicy
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from .auth import TailboneAuthorizationPolicy
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def main(global_config, **settings):
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"""
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This function returns a Pyramid WSGI application.
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"""
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# Use Tailbone templates by default.
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settings.setdefault('mako.directories', ['tailbone:templates'])
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# Make two attempts when "retryable" errors happen during transactions.
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# This is intended to gracefully handle database restarts.
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settings.setdefault('tm.attempts', 2)
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config = Configurator(settings=settings)
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# Initialize edbob, dammit.
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edbob.init('rattail', os.path.abspath(settings['edbob.config']))
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edbob.init_modules(['edbob.time'])
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# Configure the primary database session.
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engine = engine_from_config(settings)
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Session.configure(bind=engine)
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Session.configure(extension=ZopeTransactionExtension())
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# Configure user authentication / authorization.
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config.set_authentication_policy(SessionAuthenticationPolicy())
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config.set_authorization_policy(TailboneAuthorizationPolicy())
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# Bring in some Pyramid goodies.
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config.include('pyramid_beaker')
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config.include('pyramid_tm')
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# Bring in the rest of Tailbone.
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config.include('tailbone')
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# Consider PostgreSQL server restart errors to be "retryable."
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config.add_tween('edbob.pyramid.tweens.sqlerror_tween_factory',
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under='pyramid_tm.tm_tween_factory')
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return config.make_wsgi_app()
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