[2] | 1 | """ |
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| 2 | This script adds a foreign key to the form_values table in the galaxy_user table |
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| 3 | """ |
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| 4 | from sqlalchemy import * |
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| 5 | from sqlalchemy.orm import * |
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| 6 | from sqlalchemy.exceptions import * |
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| 7 | from migrate import * |
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| 8 | from migrate.changeset import * |
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| 9 | import datetime |
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| 10 | now = datetime.datetime.utcnow |
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| 11 | import sys, logging |
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| 12 | # Need our custom types, but don't import anything else from model |
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| 13 | from galaxy.model.custom_types import * |
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| 14 | |
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| 15 | log = logging.getLogger( __name__ ) |
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| 16 | log.setLevel(logging.DEBUG) |
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| 17 | handler = logging.StreamHandler( sys.stdout ) |
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| 18 | format = "%(name)s %(levelname)s %(asctime)s %(message)s" |
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| 19 | formatter = logging.Formatter( format ) |
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| 20 | handler.setFormatter( formatter ) |
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| 21 | log.addHandler( handler ) |
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| 22 | |
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| 23 | metadata = MetaData( migrate_engine ) |
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| 24 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 25 | |
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| 26 | def display_migration_details(): |
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| 27 | print "========================================" |
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| 28 | print "This script adds a foreign key to the form_values table in the galaxy_user table" |
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| 29 | print "========================================" |
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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 | try: |
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| 35 | User_table = Table( "galaxy_user", metadata, autoload=True ) |
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| 36 | except NoSuchTableError: |
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| 37 | User_table = None |
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| 38 | log.debug( "Failed loading table galaxy_user" ) |
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| 39 | if User_table: |
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| 40 | try: |
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| 41 | col = Column( "form_values_id", Integer, index=True ) |
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| 42 | col.create( User_table ) |
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| 43 | assert col is User_table.c.form_values_id |
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| 44 | except Exception, e: |
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| 45 | log.debug( "Adding column 'form_values_id' to galaxy_user table failed: %s" % ( str( e ) ) ) |
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| 46 | try: |
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| 47 | FormValues_table = Table( "form_values", metadata, autoload=True ) |
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| 48 | except NoSuchTableError: |
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| 49 | FormValues_table = None |
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| 50 | log.debug( "Failed loading table form_values" ) |
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| 51 | # Add 1 foreign key constraint to the form_values table |
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| 52 | if User_table and FormValues_table: |
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| 53 | try: |
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| 54 | cons = ForeignKeyConstraint( [User_table.c.form_values_id], |
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| 55 | [FormValues_table.c.id], |
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| 56 | name='user_form_values_id_fk' ) |
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| 57 | # Create the constraint |
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| 58 | cons.create() |
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| 59 | except Exception, e: |
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| 60 | log.debug( "Adding foreign key constraint 'user_form_values_id_fk' to table 'galaxy_user' failed: %s" % ( str( e ) ) ) |
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| 61 | def downgrade(): |
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| 62 | pass |
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