microblog2/db_repository/versions/002_migration.py

29 lines
775 B
Python
Raw Normal View History

2012-12-16 08:29:49 +00:00
from sqlalchemy import *
from migrate import *
from migrate.changeset import schema
pre_meta = MetaData()
post_meta = MetaData()
post = Table('post', post_meta,
Column('id', Integer, primary_key=True, nullable=False),
Column('body', String(length=140)),
Column('timestamp', DateTime),
Column('user_id', Integer),
)
def upgrade(migrate_engine):
# Upgrade operations go here. Don't create your own engine; bind
# migrate_engine to your metadata
pre_meta.bind = migrate_engine
post_meta.bind = migrate_engine
post_meta.tables['post'].create()
def downgrade(migrate_engine):
# Operations to reverse the above upgrade go here.
pre_meta.bind = migrate_engine
post_meta.bind = migrate_engine
post_meta.tables['post'].drop()