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Source code for tool_shed.webapp.model.migrate.versions.0002_add_tool_suite_column

Migration script to add the suite column to the tool table.

import logging
import sys

from sqlalchemy import Boolean, Column, MetaData, Table

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

metadata = MetaData()

[docs]def upgrade(migrate_engine): metadata.bind = migrate_engine print(__doc__) metadata.reflect() # Create and initialize imported column in job table. Tool_table = Table("tool", metadata, autoload=True) c = Column("suite", Boolean, default=False, index=True) try: # Create c.create(Tool_table, index_name='ix_tool_suite') assert c is Tool_table.c.suite # 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 tool SET suite=%s" % default_false) except Exception: log.exception("Adding suite column to the tool table failed.")
[docs]def downgrade(migrate_engine): metadata.bind = migrate_engine metadata.reflect() # Drop suite column from tool table. Tool_table = Table("tool", metadata, autoload=True) try: Tool_table.c.suite.drop() except Exception: log.exception("Dropping column suite from the tool table failed.")