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Source code for galaxy.model.migrate.versions.0135_add_library_tags
"""
This migration script adds support for storing tags in the context of a dataset in a library
"""
import logging
from sqlalchemy import Column, ForeignKey, Integer, MetaData, Table
# Need our custom types, but don't import anything else from model
from galaxy.model.custom_types import TrimmedString
log = logging.getLogger(__name__)
metadata = MetaData()
LibraryDatasetDatasetAssociationTagAssociation_table = Table(
"library_dataset_dataset_association_tag_association", metadata,
Column("id", Integer, primary_key=True),
Column("library_dataset_dataset_association_id", Integer, ForeignKey("library_dataset_dataset_association.id"), index=True),
Column("tag_id", Integer, ForeignKey("tag.id"), index=True),
Column("user_tname", TrimmedString(255), index=True),
Column("value", TrimmedString(255), index=True),
Column("user_value", TrimmedString(255), index=True),
Column("user_id", Integer, ForeignKey("galaxy_user.id"), index=True)
)
[docs]def upgrade(migrate_engine):
metadata.bind = migrate_engine
print(__doc__)
metadata.reflect()
try:
LibraryDatasetDatasetAssociationTagAssociation_table.create()
except Exception:
log.exception("Creating library_dataset_association_tag_association table failed.")
[docs]def downgrade(migrate_engine):
metadata.bind = migrate_engine
metadata.reflect()
try:
LibraryDatasetDatasetAssociationTagAssociation_table.drop()
except Exception:
log.exception("Dropping library_dataset_association_tag_association table failed.")