93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sqlalchemy as sa
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from sqlalchemy.orm import relationship
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from climate.db.sqlalchemy import model_base as mb
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from climate.openstack.common import uuidutils
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## Helpers
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def _generate_unicode_uuid():
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return unicode(uuidutils.generate_uuid())
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def _id_column():
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return sa.Column(sa.String(36),
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primary_key=True,
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default=_generate_unicode_uuid)
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## Main objects: Lease, Reservation, Event
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class Lease(mb.ClimateBase):
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"""Contains all info about lease."""
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__tablename__ = 'leases'
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__table_args__ = (
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sa.UniqueConstraint('name'),
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)
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id = _id_column()
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name = sa.Column(sa.String(80), nullable=False)
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start_date = sa.Column(sa.DateTime, nullable=False)
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end_date = sa.Column(sa.DateTime, nullable=False)
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trust = sa.Column(sa.String(36), nullable=False)
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reservations = relationship('Reservation', cascade="all,delete",
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backref='lease', lazy='joined')
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events = relationship('Event', cascade="all,delete",
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backref='lease', lazy='joined')
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def to_dict(self):
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d = super(Lease, self).to_dict()
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d['reservations'] = [r.to_dict() for r in self.reservations]
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d['events'] = [e.to_dict() for e in self.events]
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return d
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class Reservation(mb.ClimateBase):
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"""Specifies group of nodes within a cluster."""
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__tablename__ = 'reservations'
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id = _id_column()
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lease_id = sa.Column(sa.String(36),
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sa.ForeignKey('leases.id'),
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nullable=False)
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resource_id = sa.Column(sa.String(36))
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resource_type = sa.Column(sa.String(66))
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status = sa.Column(sa.String(13))
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def to_dict(self):
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return super(Reservation, self).to_dict()
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class Event(mb.ClimateBase):
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"""An events occurring with the lease."""
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__tablename__ = 'events'
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id = _id_column()
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lease_id = sa.Column(sa.String(36), sa.ForeignKey('leases.id'))
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event_type = sa.Column(sa.String(66))
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time = sa.Column(sa.DateTime)
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status = sa.Column(sa.String(13))
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def to_dict(self):
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return super(Event, self).to_dict()
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