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.0071_add_history_and_workflow_to_sample
"""
Migration script to add 'workflow' and 'history' columns for a sample.
"""
import logging
from sqlalchemy import Column, ForeignKey, Integer, MetaData, Table
from galaxy.model.custom_types import JSONType
from galaxy.model.migrate.versions.util import add_column, drop_column
log = logging.getLogger(__name__)
metadata = MetaData()
[docs]def upgrade(migrate_engine):
print(__doc__)
metadata.bind = migrate_engine
metadata.reflect()
Sample_table = Table("sample", metadata, autoload=True)
c1 = Column("workflow", JSONType, nullable=True)
add_column(c1, Sample_table, metadata)
c2 = Column("history_id", Integer, ForeignKey("history.id"), nullable=True)
add_column(c2, Sample_table, metadata)
[docs]def downgrade(migrate_engine):
metadata.bind = migrate_engine
metadata.reflect()
Sample_table = Table("sample", metadata, autoload=True)
drop_column('workflow', Sample_table)
drop_column('history_id', Sample_table)