[2] | 1 | """ |
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| 2 | Add a state column to the history_dataset_association and library_dataset_dataset_association table. |
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| 3 | """ |
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| 4 | |
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| 5 | from sqlalchemy import * |
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| 6 | from sqlalchemy.orm import * |
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| 7 | from sqlalchemy.exc import * |
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| 8 | from migrate import * |
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| 9 | from migrate.changeset import * |
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| 10 | from galaxy.model.custom_types import * |
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| 11 | |
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| 12 | import datetime |
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| 13 | now = datetime.datetime.utcnow |
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| 14 | |
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| 15 | import sys, logging |
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| 16 | log = logging.getLogger( __name__ ) |
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| 17 | log.setLevel(logging.DEBUG) |
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| 18 | handler = logging.StreamHandler( sys.stdout ) |
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| 19 | format = "%(name)s %(levelname)s %(asctime)s %(message)s" |
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| 20 | formatter = logging.Formatter( format ) |
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| 21 | handler.setFormatter( formatter ) |
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| 22 | log.addHandler( handler ) |
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| 23 | |
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| 24 | metadata = MetaData( migrate_engine ) |
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| 25 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 26 | |
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| 27 | DATASET_INSTANCE_TABLE_NAMES = [ 'history_dataset_association', 'library_dataset_dataset_association' ] |
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| 28 | |
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| 29 | def upgrade(): |
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| 30 | print __doc__ |
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| 31 | metadata.reflect() |
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| 32 | dataset_instance_tables = [] |
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| 33 | for table_name in DATASET_INSTANCE_TABLE_NAMES: |
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| 34 | try: |
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| 35 | dataset_instance_tables.append( ( table_name, Table( table_name, metadata, autoload=True ) ) ) |
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| 36 | except NoSuchTableError: |
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| 37 | log.debug( "Failed loading table %s" % table_name ) |
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| 38 | if dataset_instance_tables: |
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| 39 | for table_name, dataset_instance_table in dataset_instance_tables: |
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| 40 | try: |
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| 41 | col = Column( "state", TrimmedString( 64 ), index=True, nullable=True ) |
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| 42 | col.create( dataset_instance_table ) |
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| 43 | assert col is dataset_instance_table.c.state |
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| 44 | except Exception, e: |
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| 45 | log.debug( "Adding column 'state' to %s table failed: %s" % ( table_name, str( e ) ) ) |
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| 46 | try: |
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| 47 | i = Index( "ix_%s_state" % table_name, dataset_instance_table.c.state ) |
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| 48 | i.create() |
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| 49 | except Exception, e: |
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| 50 | log.debug( "Adding index 'ix_%s_state' failed: %s" % ( table_name, str( e ) ) ) |
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| 51 | def downgrade(): |
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| 52 | metadata.reflect() |
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| 53 | dataset_instance_tables = [] |
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| 54 | for table_name in DATASET_INSTANCE_TABLE_NAMES: |
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| 55 | try: |
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| 56 | dataset_instance_tables.append( ( table_name, Table( table_name, metadata, autoload=True ) ) ) |
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| 57 | except NoSuchTableError: |
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| 58 | log.debug( "Failed loading table %s" % table_name ) |
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| 59 | if dataset_instance_tables: |
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| 60 | for table_name, dataset_instance_table in dataset_instance_tables: |
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| 61 | try: |
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| 62 | col = dataset_instance_table.c.state |
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| 63 | col.drop() |
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| 64 | except Exception, e: |
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| 65 | log.debug( "Dropping column 'state' from %s table failed: %s" % ( table_name, str( e ) ) ) |
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