**** CubicPower OpenStack Study ****
def upgrade(active_plugins=None, options=None):
if not migration.should_run(active_plugins, migration_for_plugins):
return
op.add_column(
'cisco_nexusport_bindings',
sa.Column('instance_id', sa.String(length=255), nullable=False))
op.add_column(
'cisco_nexusport_bindings',
sa.Column('switch_ip', sa.String(length=255), nullable=False))
**** CubicPower OpenStack Study ****
def downgrade(active_plugins=None, options=None):
if not migration.should_run(active_plugins, migration_for_plugins):
return
op.drop_column('cisco_nexusport_bindings', 'switch_ip')
op.drop_column('cisco_nexusport_bindings', 'instance_id')