Source code for galaxy.model.migrate.versions.0030_history_slug_column

"""
Migration script to add column for a history slug.
"""

import logging

from sqlalchemy import (
    Column,
    MetaData,
    Table,
    TEXT
)

from galaxy.model.migrate.versions.util import (
    add_column,
    add_index,
    drop_column
)

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


[docs]def upgrade(migrate_engine): print(__doc__) metadata.bind = migrate_engine metadata.reflect() History_table = Table("history", metadata, autoload=True) c = Column("slug", TEXT) add_column(c, History_table, metadata) # Index needs to be added separately because MySQL cannot index a TEXT/BLOB # column without specifying mysql_length add_index('ix_history_slug', History_table, 'slug')
[docs]def downgrade(migrate_engine): metadata.bind = migrate_engine metadata.reflect() drop_column('slug', 'history', metadata)