# Copyright (c) 2016 Red Hat, Inc.
# All Rights Reserved.
#
#    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 Boolean, Column, MetaData, String, Table, text


def upgrade(migrate_engine):
    """Add replication info to clusters table."""
    meta = MetaData()
    meta.bind = migrate_engine

    clusters = Table('clusters', meta, autoload=True)
    replication_status = Column('replication_status', String(length=36),
                                default="not-capable")
    active_backend_id = Column('active_backend_id', String(length=255))
    frozen = Column('frozen', Boolean, nullable=False, default=False,
                    server_default=text('false'))

    clusters.create_column(replication_status)
    clusters.create_column(frozen)
    clusters.create_column(active_backend_id)

# Copyright (c) 2016 Red Hat, Inc.
# All Rights Reserved.
#
#    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 Boolean, Column, MetaData, String, Table
from sqlalchemy.sql import expression


def upgrade(migrate_engine):
    """Add replication info to clusters table."""
    meta = MetaData()
    meta.bind = migrate_engine

    clusters = Table('clusters', meta, autoload=True)
    replication_status = Column('replication_status', String(length=36),
                                default="not-capable")
    active_backend_id = Column('active_backend_id', String(length=255))
    frozen = Column('frozen', Boolean, nullable=False, default=False,
                    server_default=expression.false())

    clusters.create_column(replication_status)
    clusters.create_column(frozen)
    clusters.create_column(active_backend_id)

Fix cannot add a column with non-constant default
Fix cannot add a column with non-constant default

With newer versions of sqlite tests are failing
on sqlite3.OperationalError : Cannot add a column with
non-constant default. In SQL queries is boolean without
apostrophes which causes sqlite3 error. This fix is
solving this issue by replacing text('false') to
expression.false() from sqlalchemy.sql which is
working correct.

Change-Id: Ia96255a2a61994a18b21acc235931ad03a8501ea
Closes-Bug: #1773123
