Warning

This document is for an old release of Galaxy. You can alternatively view this page in the latest release if it exists or view the top of the latest release's documentation.

Source code for galaxy.model.migrate.versions.0151_add_worker_process

"""
Add table for worker processes
"""

import logging

from sqlalchemy import (
    Column,
    DateTime,
    Integer,
    MetaData,
    String,
    Table,
    UniqueConstraint,
)

from galaxy.model.migrate.versions.util import (
    create_table,
    drop_table
)
from galaxy.model.orm.now import now

log = logging.getLogger(__name__)
metadata = MetaData()


WorkerProcess_table = Table(
    'worker_process',
    metadata,
    Column("id", Integer, primary_key=True),
    Column("server_name", String(255), index=True),
    Column("hostname", String(255)),
    Column("update_time", DateTime, default=now, onupdate=now),
    UniqueConstraint('server_name', 'hostname'),
)


def upgrade(migrate_engine):
    print(__doc__)
    metadata.bind = migrate_engine
    metadata.reflect()

    create_table(WorkerProcess_table)


def downgrade(migrate_engine):
    metadata.bind = migrate_engine
    metadata.reflect()

    drop_table(WorkerProcess_table)