3b467be51e43_composite_primary_key_port_ip_.py 文件源码

def upgrade():
    metadata = sa.MetaData(bind=op.get_bind())
    table = sa.Table('quark_port_ip_address_associations', metadata,
                     autoload=True)
    with _foreign_keys_dropped(op, table):
        op.alter_column('quark_port_ip_address_associations', 'ip_address_id',
                        existing_type=sa.String(36), nullable=False)
        op.alter_column('quark_port_ip_address_associations', 'port_id',
                        existing_type=sa.String(36), nullable=False)
        op.create_primary_key("pk_quark_port_ip_address_associations",
                              "quark_port_ip_address_associations",
                              ['port_id', 'ip_address_id'])