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.0083_add_prepare_files_to_task
"""
Migration script to add 'prepare_input_files_cmd' column to the task table and to rename a column.
"""
import logging
from sqlalchemy import Column, MetaData, String, Table, TEXT
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()
task_table = Table("task", metadata, autoload=True)
c = Column("prepare_input_files_cmd", TEXT, nullable=True)
add_column(c, task_table, metadata)
c = Column("working_directory", String(1024), nullable=True)
add_column(c, task_table, metadata)
# remove the 'part_file' column - nobody used tasks before this, so no data needs to be migrated
drop_column('part_file', task_table)
[docs]def downgrade(migrate_engine):
metadata.bind = migrate_engine
metadata.reflect()
task_table = Table("task", metadata, autoload=True)
c = Column("part_file", String(1024), nullable=True)
add_column(c, task_table, metadata)
drop_column('working_directory', task_table)
drop_column('prepare_input_files_cmd', task_table)