52 lines
2.1 KiB
Python
52 lines
2.1 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 sqlalchemy import Column, Enum, Index, MetaData, Table, select, not_, and_
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from sqlalchemy.engine import reflection
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def upgrade(migrate_engine):
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meta = MetaData(bind=migrate_engine)
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images = Table('images', meta, autoload=True)
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enum = Enum('private', 'public', 'shared', 'community', metadata=meta,
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name='image_visibility')
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enum.create()
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images.create_column(Column('visibility', enum, nullable=False,
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server_default='shared'))
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visibility_index = Index('visibility_image_idx', images.c.visibility)
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visibility_index.create(migrate_engine)
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images.update(values={'visibility': 'public'}).where(
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images.c.is_public).execute()
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image_members = Table('image_members', meta, autoload=True)
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# NOTE(dharinic): Mark all the non-public images as 'private' first
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images.update().values(visibility='private').where(
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not_(images.c.is_public)).execute()
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# NOTE(dharinic): Identify 'shared' images from the above
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images.update().values(visibility='shared').where(and_(
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images.c.visibility == 'private', images.c.id.in_(select(
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[image_members.c.image_id]).distinct().where(
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not_(image_members.c.deleted))))).execute()
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insp = reflection.Inspector.from_engine(migrate_engine)
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for index in insp.get_indexes('images'):
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if 'ix_images_is_public' == index['name']:
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Index('ix_images_is_public', images.c.is_public).drop()
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break
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images.c.is_public.drop()
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