def define_image_tags_table(meta):
# Load the images table so the foreign key can be set up properly
schema.Table('images', meta, autoload=True)
image_tags = schema.Table('image_tags',
meta,
schema.Column('id',
glance_schema.Integer(),
primary_key=True,
nullable=False),
schema.Column('image_id',
glance_schema.String(36),
schema.ForeignKey('images.id'),
nullable=False),
schema.Column('value',
glance_schema.String(255),
nullable=False),
mysql_engine='InnoDB')
schema.Index('ix_image_tags_image_id', image_tags.c.image_id)
schema.Index('ix_image_tags_image_id_tag_value', image_tags.c.image_id,
image_tags.c.value)
return image_tags
def upgrade(migrate_engine):
meta = sqlalchemy.schema.MetaData(migrate_engine)
#NOTE(bcwaldon): load the images table for the ForeignKey below
sqlalchemy.Table('images', meta, autoload=True)
image_locations_table = sqlalchemy.Table(
'image_locations',
meta,
sqlalchemy.Column('id',
schema.Integer(),
primary_key=True,
nullable=False),
sqlalchemy.Column('image_id',
schema.String(36),
sqlalchemy.ForeignKey('images.id'),
nullable=False,
index=True),
sqlalchemy.Column('value', schema.Text(), nullable=False),
sqlalchemy.Column('created_at', schema.DateTime(), nullable=False),
sqlalchemy.Column('updated_at', schema.DateTime()),
sqlalchemy.Column('deleted_at', schema.DateTime()),
sqlalchemy.Column('deleted',
schema.Boolean(),
nullable=False,
default=False,
index=True),
)
schema.create_tables([image_locations_table])
def upgrade(migrate_engine):
meta = sqlalchemy.schema.MetaData()
meta.bind = migrate_engine
images_table = sqlalchemy.Table('images', meta, autoload=True)
image_locations_table = sqlalchemy.Table('image_locations',
meta,
autoload=True)
# Create 'status' column for image_locations table
status = sqlalchemy.Column('status',
schema.String(30),
server_default='active',
nullable=False)
status.create(image_locations_table)
# Set 'status' column initial value for image_locations table
mapping = {
'active': 'active',
'pending_delete': 'pending_delete',
'deleted': 'deleted',
'killed': 'deleted'
}
for src, dst in six.iteritems(mapping):
subq = sqlalchemy.sql.select([images_table.c.id])\
.where(images_table.c.status == src)
image_locations_table.update(values={'status': dst})\
.where(image_locations_table.c.image_id.in_(subq))\
.execute()
def define_image_tags_table(meta):
# Load the images table so the foreign key can be set up properly
schema.Table('images', meta, autoload=True)
image_tags = schema.Table('image_tags',
meta,
schema.Column('id',
glance_schema.Integer(),
primary_key=True,
nullable=False),
schema.Column('image_id',
glance_schema.String(36),
schema.ForeignKey('images.id'),
nullable=False),
schema.Column('value',
glance_schema.String(255),
nullable=False),
schema.Column('created_at',
glance_schema.DateTime(),
nullable=False),
schema.Column('updated_at',
glance_schema.DateTime()),
schema.Column('deleted_at',
glance_schema.DateTime()),
schema.Column('deleted',
glance_schema.Boolean(),
nullable=False,
default=False),
mysql_engine='InnoDB',
mysql_charset='utf8')
schema.Index('ix_image_tags_image_id', image_tags.c.image_id)
schema.Index('ix_image_tags_image_id_tag_value', image_tags.c.image_id,
image_tags.c.value)
return image_tags
