a6decbb313
Changed license to AGPLv3, "finished" console command framework (for now?), and added initial db/lib/pyramid/wx subpackages - though those are not yet well tested.
129 lines
3 KiB
Python
129 lines
3 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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# edbob -- Pythonic Software Framework
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# Copyright © 2010-2012 Lance Edgar
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#
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# This file is part of edbob.
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#
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# edbob 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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# edbob 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 edbob. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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``edbob.db.mappers`` -- Object Relational Mappings
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"""
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from sqlalchemy.orm import mapper, relationship
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import edbob.db.classes as c
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def make_mappers(metadata):
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"""
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This function glues together the schema definition found in the ``models``
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module with the data class definitions found in the ``classes`` module.
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``metadata`` should be a ``sqlalchemy.MetaData`` instance.
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It is meant to be called only once, by :func:`edbob.init()`.
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"""
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t = metadata.tables
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# ActiveExtension
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mapper(
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c.ActiveExtension, t['active_extensions'],
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)
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# Permission
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mapper(
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c.Permission, t['permissions'],
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)
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# Person
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mapper(
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c.Person, t['people'],
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properties=dict(
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customers=relationship(
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c.Customer,
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backref='person',
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),
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employee=relationship(
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c.Employee,
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back_populates='person',
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uselist=False,
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),
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user=relationship(
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c.User,
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back_populates='person',
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uselist=False,
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),
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),
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)
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# Role
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mapper(
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c.Role, t['roles'],
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properties=dict(
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_permissions=relationship(
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c.Permission,
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backref='role',
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),
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_users=relationship(
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c.UserRole,
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backref='role',
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),
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),
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)
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# Setting
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mapper(
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c.Setting, t['settings'],
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)
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# User
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mapper(
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c.User, t['users'],
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properties=dict(
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person=relationship(
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c.Person,
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back_populates='user',
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),
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_roles=relationship(
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c.UserRole,
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backref='user',
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cascade='save-update,merge,delete',
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),
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),
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)
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# UserRole
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mapper(
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c.UserRole, t['users_roles'],
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)
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