[2] | 1 | """ |
---|
| 2 | This migration script creates the new history_user_share_association table, and adds |
---|
| 3 | a new boolean type column to the history table. This provides support for sharing |
---|
| 4 | histories in the same way that workflows are shared. |
---|
| 5 | """ |
---|
| 6 | from sqlalchemy import * |
---|
| 7 | from sqlalchemy.orm import * |
---|
| 8 | from migrate import * |
---|
| 9 | from migrate.changeset import * |
---|
| 10 | import sys, logging |
---|
| 11 | |
---|
| 12 | log = logging.getLogger( __name__ ) |
---|
| 13 | log.setLevel(logging.DEBUG) |
---|
| 14 | handler = logging.StreamHandler( sys.stdout ) |
---|
| 15 | format = "%(name)s %(levelname)s %(asctime)s %(message)s" |
---|
| 16 | formatter = logging.Formatter( format ) |
---|
| 17 | handler.setFormatter( formatter ) |
---|
| 18 | log.addHandler( handler ) |
---|
| 19 | |
---|
| 20 | metadata = MetaData( migrate_engine ) |
---|
| 21 | |
---|
| 22 | def display_migration_details(): |
---|
| 23 | print "========================================" |
---|
| 24 | print "This migration script creates the new history_user_share_association table, and adds" |
---|
| 25 | print "a new boolean type column to the history table. This provides support for sharing" |
---|
| 26 | print "histories in the same way that workflows are shared." |
---|
| 27 | print "========================================" |
---|
| 28 | |
---|
| 29 | HistoryUserShareAssociation_table = Table( "history_user_share_association", metadata, |
---|
| 30 | Column( "id", Integer, primary_key=True ), |
---|
| 31 | Column( "history_id", Integer, ForeignKey( "history.id" ), index=True ), |
---|
| 32 | Column( "user_id", Integer, ForeignKey( "galaxy_user.id" ), index=True ) |
---|
| 33 | ) |
---|
| 34 | |
---|
| 35 | def upgrade(): |
---|
| 36 | display_migration_details() |
---|
| 37 | # Load existing tables |
---|
| 38 | metadata.reflect() |
---|
| 39 | # Create the history_user_share_association table |
---|
| 40 | try: |
---|
| 41 | HistoryUserShareAssociation_table.create() |
---|
| 42 | except Exception, e: |
---|
| 43 | log.debug( "Creating history_user_share_association table failed: %s" % str( e ) ) |
---|
| 44 | # Add 1 column to the history table |
---|
| 45 | try: |
---|
| 46 | History_table = Table( "history", metadata, autoload=True ) |
---|
| 47 | except NoSuchTableError: |
---|
| 48 | History_table = None |
---|
| 49 | log.debug( "Failed loading table history" ) |
---|
| 50 | if History_table: |
---|
| 51 | try: |
---|
| 52 | col = Column( 'importable', Boolean, index=True, default=False ) |
---|
| 53 | col.create( History_table ) |
---|
| 54 | assert col is History_table.c.importable |
---|
| 55 | except Exception, e: |
---|
| 56 | log.debug( "Adding column 'importable' to history table failed: %s" % ( str( e ) ) ) |
---|
| 57 | |
---|
| 58 | def downgrade(): |
---|
| 59 | # Load existing tables |
---|
| 60 | metadata.reflect() |
---|
| 61 | # Drop 1 column from the history table |
---|
| 62 | try: |
---|
| 63 | History_table = Table( "history", metadata, autoload=True ) |
---|
| 64 | except NoSuchTableError: |
---|
| 65 | History_table = None |
---|
| 66 | log.debug( "Failed loading table history" ) |
---|
| 67 | if History_table: |
---|
| 68 | try: |
---|
| 69 | col = History_table.c.importable |
---|
| 70 | col.drop() |
---|
| 71 | except Exception, e: |
---|
| 72 | log.debug( "Dropping column 'importable' from history table failed: %s" % ( str( e ) ) ) |
---|
| 73 | # Drop the history_user_share_association table |
---|
| 74 | try: |
---|
| 75 | HistoryUserShareAssociation_table.drop() |
---|
| 76 | except Exception, e: |
---|
| 77 | log.debug( "Dropping history_user_share_association table failed: %s" % str( e ) ) |
---|