# Copyright 2011 OpenStack LLC.
# Copyright 2011 <NAME>
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from sqlalchemy import MetaData, Table, Column
from sqlalchemy import DateTime, Boolean, Integer, String
from sqlalchemy import ForeignKey
from nova import log as logging

LOG = logging.getLogger(__name__)


def upgrade(migrate_engine):
    # Upgrade operations go here. Don't create your own engine;
    # bind migrate_engine to your metadata
    meta = MetaData()
    meta.bind = migrate_engine

    # load tables for fk
    instances = Table('instances', meta, autoload=True)
    volumes = Table('volumes', meta, autoload=True)
    snapshots = Table('snapshots', meta, autoload=True)

    #
    # New Tables
    #
    block_device_mapping = Table('block_device_mapping', meta,
            Column('created_at', DateTime(timezone=False)),
            Column('updated_at', DateTime(timezone=False)),
            Column('deleted_at', DateTime(timezone=False)),
            Column('deleted', Boolean(create_constraint=True, name=None)),
            Column('id', Integer(), primary_key=True, autoincrement=True),
            Column('instance_id',
                   Integer(),
                   ForeignKey('instances.id'),
                   nullable=False),
            Column('device_name',
                   String(length=255, convert_unicode=False,
                          assert_unicode=None,
                          unicode_error=None, _warn_on_bytestring=False),
                   nullable=False),
            Column('delete_on_termination',
                   Boolean(create_constraint=True, name=None),
                   default=False),
            Column('virtual_name',
                   String(length=255, convert_unicode=False,
                          assert_unicode=None,
                          unicode_error=None, _warn_on_bytestring=False),
                   nullable=True),
            Column('snapshot_id',
                   Integer(),
                   ForeignKey('snapshots.id'),
                   nullable=True),
            Column('volume_id', Integer(), ForeignKey('volumes.id'),
                   nullable=True),
            Column('volume_size', Integer(), nullable=True),
            Column('no_device',
                   Boolean(create_constraint=True, name=None),
                   nullable=True),
            )
    try:
        block_device_mapping.create()
    except Exception:
        LOG.info(repr(block_device_mapping))
        LOG.exception('Exception while creating table')
        meta.drop_all(tables=[block_device_mapping])
        raise


def downgrade(migrate_engine):
    # Operations to reverse the above upgrade go here.
    meta = MetaData()
    meta.bind = migrate_engine

    # load tables for fk
    instances = Table('instances', meta, autoload=True)
    volumes = Table('volumes', meta, autoload=True)
    snapshots = Table('snapshots', meta, autoload=True)

    block_device_mapping = Table('block_device_mapping', meta, autoload=True)
    block_device_mapping.drop()

# Copyright 2011 OpenStack LLC.
# Copyright 2011 <NAME>
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from sqlalchemy import MetaData, Table, Column
from sqlalchemy import DateTime, Boolean, Integer, String
from sqlalchemy import ForeignKey
from nova import log as logging

LOG = logging.getLogger(__name__)


def upgrade(migrate_engine):
    # Upgrade operations go here. Don't create your own engine;
    # bind migrate_engine to your metadata
    meta = MetaData()
    meta.bind = migrate_engine

    # load tables for fk
    instances = Table('instances', meta, autoload=True)
    volumes = Table('volumes', meta, autoload=True)
    snapshots = Table('snapshots', meta, autoload=True)

    #
    # New Tables
    #
    block_device_mapping = Table('block_device_mapping', meta,
            Column('created_at', DateTime(timezone=False)),
            Column('updated_at', DateTime(timezone=False)),
            Column('deleted_at', DateTime(timezone=False)),
            Column('deleted', Boolean(create_constraint=True, name=None)),
            Column('id', Integer(), primary_key=True, autoincrement=True),
            Column('instance_id',
                   Integer(),
                   ForeignKey('instances.id'),
                   nullable=False),
            Column('device_name',
                   String(length=255, convert_unicode=False,
                          assert_unicode=None,
                          unicode_error=None, _warn_on_bytestring=False),
                   nullable=False),
            Column('delete_on_termination',
                   Boolean(create_constraint=True, name=None),
                   default=False),
            Column('virtual_name',
                   String(length=255, convert_unicode=False,
                          assert_unicode=None,
                          unicode_error=None, _warn_on_bytestring=False),
                   nullable=True),
            Column('snapshot_id',
                   Integer(),
                   ForeignKey('snapshots.id'),
                   nullable=True),
            Column('volume_id', Integer(), ForeignKey('volumes.id'),
                   nullable=True),
            Column('volume_size', Integer(), nullable=True),
            Column('no_device',
                   Boolean(create_constraint=True, name=None),
                   nullable=True),
            )
    try:
        block_device_mapping.create()
    except Exception:
        LOG.info(repr(block_device_mapping))
        LOG.exception('Exception while creating table')
        meta.drop_all(tables=[block_device_mapping])
        raise


def downgrade(migrate_engine):
    # Operations to reverse the above upgrade go here.
    meta = MetaData()
    meta.bind = migrate_engine

    # load tables for fk
    instances = Table('instances', meta, autoload=True)
    volumes = Table('volumes', meta, autoload=True)
    snapshots = Table('snapshots', meta, autoload=True)

    block_device_mapping = Table('block_device_mapping', meta, autoload=True)
    block_device_mapping.drop()

# Copyright 2011 OpenStack LLC. # Copyright 2011 <NAME> # #    Licensed under the Apache License, Version 2.0 (the "License"); you may #    not use this file except in compliance with the License. You may obtain #    a copy of the License at # #         http://www.apache.org/licenses/LICENSE-2.0 # #    Unless required by applicable law or agreed to in writing, software #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the #    License for the specific language governing permissions and limitations #    under the License. # Upgrade operations go here. Don't create your own engine; # bind migrate_engine to your metadata # load tables for fk # # New Tables # # Operations to reverse the above upgrade go here. # load tables for fk