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114 lines
3.6 KiB
Python
114 lines
3.6 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_db.sqlalchemy import models
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from oslo_utils import uuidutils
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import sqlalchemy as sa
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from sqlalchemy.ext import declarative
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from sqlalchemy import orm
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from neutron_lib.db import constants as db_const
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class HasProject(object):
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"""Project mixin, add to subclasses that have a user."""
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# NOTE: project_id is just a free form string
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project_id = sa.Column(sa.String(db_const.PROJECT_ID_FIELD_SIZE),
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index=True)
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def get_tenant_id(self):
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return self.project_id
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def set_tenant_id(self, value):
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self.project_id = value
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@declarative.declared_attr
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def tenant_id(cls):
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return orm.synonym(
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'project_id',
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descriptor=property(cls.get_tenant_id, cls.set_tenant_id))
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class HasProjectNoIndex(HasProject):
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"""Project mixin, add to subclasses that have a user."""
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# NOTE: project_id is just a free form string
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project_id = sa.Column(sa.String(db_const.PROJECT_ID_FIELD_SIZE))
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class HasProjectPrimaryKeyIndex(HasProject):
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"""Project mixin, add to subclasses that have a user."""
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# NOTE: project_id is just a free form string
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project_id = sa.Column(sa.String(db_const.PROJECT_ID_FIELD_SIZE),
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nullable=False, primary_key=True, index=True)
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class HasProjectPrimaryKey(HasProject):
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"""Project mixin, add to subclasses that have a user."""
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# NOTE: project_id is just a free form string
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project_id = sa.Column(sa.String(db_const.PROJECT_ID_FIELD_SIZE),
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nullable=False, primary_key=True)
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class HasId(object):
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"""id mixin, add to subclasses that have an id."""
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id = sa.Column(sa.String(db_const.UUID_FIELD_SIZE),
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primary_key=True,
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default=uuidutils.generate_uuid)
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class HasStatusDescription(object):
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"""Status with description mixin."""
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status = sa.Column(sa.String(db_const.STATUS_FIELD_SIZE),
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nullable=False)
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status_description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
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class _NeutronBase(models.ModelBase):
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"""Base class for Neutron Models."""
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__table_args__ = {'mysql_engine': 'InnoDB'}
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def __iter__(self):
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self._i = iter(orm.object_mapper(self).columns)
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return self
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def next(self):
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n = next(self._i).name
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return n, getattr(self, n)
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__next__ = next
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def __repr__(self):
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"""sqlalchemy based automatic __repr__ method."""
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items = ['%s=%r' % (col.name, getattr(self, col.name))
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for col in self.__table__.columns]
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return "<%s.%s[object at %x] {%s}>" % (self.__class__.__module__,
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self.__class__.__name__,
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id(self), ', '.join(items))
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class NeutronBaseV2(_NeutronBase):
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@declarative.declared_attr
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def __tablename__(cls):
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# Use the pluralized name of the class as the table name.
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return cls.__name__.lower() + 's'
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BASEV2 = declarative.declarative_base(cls=NeutronBaseV2)
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