022_add_group_extras.py 文件源码

def upgrade(migrate_engine):
    metadata = MetaData()
    metadata.bind = migrate_engine

    group_table = Table('group', metadata, autoload=True)
    group_extra_table = Table('group_extra', metadata,
        Column('id', UnicodeText, primary_key=True, default=make_uuid),
        Column('group_id', UnicodeText, ForeignKey('group.id')),
        Column('key', UnicodeText),
        Column('value', JsonType),
    )

    group_extra_table.create()