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Source code for tool_shed.webapp.model.migrate.versions.0014_add_deprecated_column

"""
Migration script to add the deprecated column to the repository table.
"""

import logging
import sys

from sqlalchemy import Boolean, Column, MetaData, Table

log = logging.getLogger(__name__)
log.setLevel(logging.DEBUG)
handler = logging.StreamHandler(sys.stdout)
format = "%(name)s %(levelname)s %(asctime)s %(message)s"
formatter = logging.Formatter(format)
handler.setFormatter(formatter)
log.addHandler(handler)

metadata = MetaData()


def upgrade(migrate_engine):
    print(__doc__)
    metadata.bind = migrate_engine
    metadata.reflect()
    # Create and initialize imported column in job table.
    Repository_table = Table("repository", metadata, autoload=True)
    c = Column("deprecated", Boolean, default=False)
    try:
        # Create
        c.create(Repository_table)
        assert c is Repository_table.c.deprecated
        # Initialize.
        if migrate_engine.name == 'mysql' or migrate_engine.name == 'sqlite':
            default_false = "0"
        elif migrate_engine.name in ['postgresql', 'postgres']:
            default_false = "false"
        migrate_engine.execute("UPDATE repository SET deprecated=%s" % default_false)
    except Exception:
        log.exception("Adding deprecated column to the repository table failed.")


def downgrade(migrate_engine):
    metadata.bind = migrate_engine
    metadata.reflect()
    # Drop email_alerts column from repository table.
    Repository_table = Table("repository", metadata, autoload=True)
    try:
        Repository_table.c.deprecated.drop()
    except Exception:
        log.exception("Dropping column deprecated from the repository table failed.")