The nova.db.sqlalchemy.migration Module

class AddColumn(table_name, column, desired_phase=None)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

class AddForeignKey(fkc, desired_phase=None)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

class AddIndex(index, args)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

class AddTable(table)

Bases: nova.db.sqlalchemy.migration.OperationBase

desired_phase = 'expand'

execute(ddlop)

class AddUniqueConstraint(uc, desired_phase=None)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

class AlterColumn(table_name, column_name, args)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

class Converter

Bases: object

convert_alembic(diffs)

class DropColumn(table_name, column)

Bases: nova.db.sqlalchemy.migration.OperationBase

desired_phase = 'contract'

execute(ddlop)

removes = True

class DropForeignKey(fkc, desired_phase=None)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

removes = True

class DropIndex(index)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

removes = True

class DropTable(table)

Bases: nova.db.sqlalchemy.migration.OperationBase

desired_phase = 'contract'

execute(ddlop)

removes = True

class DropUniqueConstraint(uc)

Bases: nova.db.sqlalchemy.migration.OperationBase

execute(ddlop)

removes = True

class OperationBase

Bases: object

desired_phase = 'migrate'

removes = False

class Scheduler(ops=None)

Bases: object

add(op)

add_edge(f, t)

handle_conflicts(metadata)

order_drop_add()

schedule()

sort()

db_contract(dryrun=False, database='main')

db_expand(dryrun=False, database='main')

db_initial_version(database='main')

db_migrate(dryrun=False, database='main')

db_null_instance_uuid_scan(delete=False)

Scans the database for NULL instance_uuid records.

Parameters:delete – If true, delete NULL instance_uuid records found, else just query to see if they exist for reporting. Returns:dict of table name to number of hits for NULL instance_uuid rows.

db_sync(version=None, database='main')

db_version(database='main')

db_version_control(version=None, database='main')

get_engine(database='main')