[2] | 1 | from sqlalchemy import * |
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| 2 | from sqlalchemy.orm import * |
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| 3 | from sqlalchemy.exc import * |
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| 4 | from migrate import * |
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| 5 | from migrate.changeset import * |
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| 6 | import datetime |
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| 7 | now = datetime.datetime.utcnow |
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| 8 | import sys, logging |
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| 9 | # Need our custom types, but don't import anything else from model |
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| 10 | from galaxy.model.custom_types import * |
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| 11 | |
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| 12 | log = logging.getLogger( __name__ ) |
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| 13 | log.setLevel(logging.DEBUG) |
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| 14 | handler = logging.StreamHandler( sys.stdout ) |
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| 15 | format = "%(name)s %(levelname)s %(asctime)s %(message)s" |
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| 16 | formatter = logging.Formatter( format ) |
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| 17 | handler.setFormatter( formatter ) |
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| 18 | log.addHandler( handler ) |
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| 19 | |
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| 20 | metadata = MetaData( migrate_engine ) |
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| 21 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 22 | |
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| 23 | def display_migration_details(): |
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| 24 | print "========================================" |
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| 25 | print """This script creates a request.folder_id column which is a foreign |
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| 26 | key to the library_folder table. This also adds a 'type' and 'layout' column |
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| 27 | to the form_definition table.""" |
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| 28 | print "========================================" |
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| 29 | |
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| 30 | def upgrade(): |
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| 31 | display_migration_details() |
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| 32 | # Load existing tables |
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| 33 | metadata.reflect() |
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| 34 | # Create the folder_id column |
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| 35 | try: |
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| 36 | Request_table = Table( "request", metadata, autoload=True ) |
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| 37 | except NoSuchTableError: |
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| 38 | Request_table = None |
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| 39 | log.debug( "Failed loading table request" ) |
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| 40 | if Request_table: |
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| 41 | try: |
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| 42 | col = Column( "folder_id", Integer, index=True ) |
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| 43 | col.create( Request_table ) |
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| 44 | assert col is Request_table.c.folder_id |
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| 45 | except Exception, e: |
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| 46 | log.debug( "Adding column 'folder_id' to request table failed: %s" % ( str( e ) ) ) |
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| 47 | try: |
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| 48 | LibraryFolder_table = Table( "library_folder", metadata, autoload=True ) |
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| 49 | except NoSuchTableError: |
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| 50 | LibraryFolder_table = None |
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| 51 | log.debug( "Failed loading table library_folder" ) |
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| 52 | # Add 1 foreign key constraint to the library_folder table |
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| 53 | if Request_table and LibraryFolder_table: |
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| 54 | try: |
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| 55 | cons = ForeignKeyConstraint( [Request_table.c.folder_id], |
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| 56 | [LibraryFolder_table.c.id], |
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| 57 | name='request_folder_id_fk' ) |
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| 58 | # Create the constraint |
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| 59 | cons.create() |
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| 60 | except Exception, e: |
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| 61 | log.debug( "Adding foreign key constraint 'request_folder_id_fk' to table 'library_folder' failed: %s" % ( str( e ) ) ) |
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| 62 | # Create the type column in form_definition |
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| 63 | try: |
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| 64 | FormDefinition_table = Table( "form_definition", metadata, autoload=True ) |
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| 65 | except NoSuchTableError: |
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| 66 | FormDefinition_table = None |
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| 67 | log.debug( "Failed loading table form_definition" ) |
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| 68 | if FormDefinition_table: |
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| 69 | try: |
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| 70 | col = Column( "type", TrimmedString( 255 ), index=True ) |
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| 71 | col.create( FormDefinition_table ) |
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| 72 | assert col is FormDefinition_table.c.type |
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| 73 | except Exception, e: |
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| 74 | log.debug( "Adding column 'type' to form_definition table failed: %s" % ( str( e ) ) ) |
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| 75 | try: |
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| 76 | col = Column( "layout", JSONType()) |
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| 77 | col.create( FormDefinition_table ) |
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| 78 | assert col is FormDefinition_table.c.layout |
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| 79 | except Exception, e: |
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| 80 | log.debug( "Adding column 'layout' to form_definition table failed: %s" % ( str( e ) ) ) |
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| 81 | |
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| 82 | |
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| 83 | def downgrade(): |
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| 84 | pass |
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