报错截图 删除数据库版本控制器的目录 migrations 后, 初始化版本控制器,执行 flask db migrate -m 'xxx' 时, 产生如上图所示的报错。 因为此时 MySQL 数据库里有个 alembic_version 表: alembic_vsersion 表里是版本号 但migrations/versions 目录下没有对应的 255f..._init.py 文件, 所以报错就是版本控制...
从特定起始版本生成sql脚本: alembic upgrade <vsersion>:<vsersion> --sql > migration.sql 如: alembic upgrade 1975ea83b712:ae1027a6acf --sql > migration.sql 如果是数据库降级操作,把upgrade替换为downgrade。 Reference: https://docs.openstack.org/developer/neutron/devref/alembic_migrations.html...
def run_migrations_online(): # get the alembic section of the config file ini_section = config.get_section(config.config_ini_section) # if a database path was provided, override the one in alembic.ini db_path = context.get_x_argument(as_dictionary=True).get('dbPath') if db_path: in...
Tutorial mentions following: In practice create_all() is usually not an ideal solution. To manage database schema, tool like Alembic is recommended. What I Did I followed Alembic docs about Auto Generating Migrations and it tells to do: ...
# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s ...
def upgrade(): # OpenStack has decided that "down" migrations are not supported. # The downgrade() method has been omitted for this reason. op.add_column('listener_statistics', sa.Column('amphora_id', sa.String(36), nullable=False) ) op.drop_constraint('fk_listener_statistics_listener_...
Add newDisplay options 1 reply alembic autogenerated migrations do not see current tables started6 years ago 6 years ago m***@zzzcomputing.com 1 reply Support for "redo" started6 years ago 6 years ago m***@zzzcomputing.com 2 replies ...