**** CubicPower OpenStack Study ****
def upgrade(migrate_engine):
# Upgrade operations go here. Don't create your own engine; bind
# migrate_engine to your metadata
meta = sql.MetaData()
meta.bind = migrate_engine
# catalog
service_table = sql.Table(
'example',
meta,
sql.Column('id', sql.String(64), primary_key=True),
sql.Column('type', sql.String(255)),
sql.Column('extra', sql.Text()))
service_table.create(migrate_engine, checkfirst=True)
**** CubicPower OpenStack Study ****
def downgrade(migrate_engine):
# Operations to reverse the above upgrade go here.
meta = sql.MetaData()
meta.bind = migrate_engine
tables = ['example']
for t in tables:
table = sql.Table(t, meta, autoload=True)
table.drop(migrate_engine, checkfirst=True)