glance.db.sqlalchemy.migrate_repo package

Subpackages

• glance.db.sqlalchemy.migrate_repo.versions package
  • Submodules
  • glance.db.sqlalchemy.migrate_repo.versions.001_add_images_table module
  • glance.db.sqlalchemy.migrate_repo.versions.002_add_image_properties_table module
  • glance.db.sqlalchemy.migrate_repo.versions.003_add_disk_format module
  • glance.db.sqlalchemy.migrate_repo.versions.004_add_checksum module
  • glance.db.sqlalchemy.migrate_repo.versions.005_size_big_integer module
  • glance.db.sqlalchemy.migrate_repo.versions.006_key_to_name module
  • glance.db.sqlalchemy.migrate_repo.versions.007_add_owner module
  • glance.db.sqlalchemy.migrate_repo.versions.008_add_image_members_table module
  • glance.db.sqlalchemy.migrate_repo.versions.009_add_mindisk_and_minram module
  • glance.db.sqlalchemy.migrate_repo.versions.010_default_update_at module
  • glance.db.sqlalchemy.migrate_repo.versions.011_make_mindisk_and_minram_notnull module
  • glance.db.sqlalchemy.migrate_repo.versions.012_id_to_uuid module
  • glance.db.sqlalchemy.migrate_repo.versions.013_add_protected module
  • glance.db.sqlalchemy.migrate_repo.versions.014_add_image_tags_table module
  • glance.db.sqlalchemy.migrate_repo.versions.015_quote_swift_credentials module
  • glance.db.sqlalchemy.migrate_repo.versions.016_add_status_image_member module
  • glance.db.sqlalchemy.migrate_repo.versions.017_quote_encrypted_swift_credentials module
  • glance.db.sqlalchemy.migrate_repo.versions.018_add_image_locations_table module
  • glance.db.sqlalchemy.migrate_repo.versions.019_migrate_image_locations module
  • glance.db.sqlalchemy.migrate_repo.versions.020_drop_images_table_location module
  • glance.db.sqlalchemy.migrate_repo.versions.021_set_engine_mysql_innodb module
  • glance.db.sqlalchemy.migrate_repo.versions.022_image_member_index module
  • glance.db.sqlalchemy.migrate_repo.versions.023_placeholder module
  • glance.db.sqlalchemy.migrate_repo.versions.024_placeholder module
  • glance.db.sqlalchemy.migrate_repo.versions.025_placeholder module
  • glance.db.sqlalchemy.migrate_repo.versions.026_add_location_storage_information module
  • glance.db.sqlalchemy.migrate_repo.versions.027_checksum_index module
  • glance.db.sqlalchemy.migrate_repo.versions.028_owner_index module
  • glance.db.sqlalchemy.migrate_repo.versions.029_location_meta_data_pickle_to_string module
  • glance.db.sqlalchemy.migrate_repo.versions.030_add_tasks_table module
  • glance.db.sqlalchemy.migrate_repo.versions.031_remove_duplicated_locations module
  • glance.db.sqlalchemy.migrate_repo.versions.032_add_task_info_table module
  • glance.db.sqlalchemy.migrate_repo.versions.033_add_location_status module
  • glance.db.sqlalchemy.migrate_repo.versions.034_add_virtual_size module
  • glance.db.sqlalchemy.migrate_repo.versions.035_add_metadef_tables module
  • glance.db.sqlalchemy.migrate_repo.versions.036_rename_metadef_schema_columns module
  • glance.db.sqlalchemy.migrate_repo.versions.037_add_changes_to_satisfy_models module
  • glance.db.sqlalchemy.migrate_repo.versions.038_add_metadef_tags_table module
  • glance.db.sqlalchemy.migrate_repo.versions.039_add_changes_to_satisfy_models_metadef module
  • glance.db.sqlalchemy.migrate_repo.versions.040_add_changes_to_satisfy_metadefs_tags module
  • glance.db.sqlalchemy.migrate_repo.versions.041_add_artifact_tables module
  • glance.db.sqlalchemy.migrate_repo.versions.042_add_changes_to_reinstall_unique_metadef_constraints module
  • glance.db.sqlalchemy.migrate_repo.versions.043_add_image_created_updated_idx module
  • glance.db.sqlalchemy.migrate_repo.versions.044_update_metadef_os_nova_server module
  • Module contents

Submodules

glance.db.sqlalchemy.migrate_repo.manage module

glance.db.sqlalchemy.migrate_repo.schema module

Various conveniences used for migration scripts

glance.db.sqlalchemy.migrate_repo.schema.BigInteger()

glance.db.sqlalchemy.migrate_repo.schema.Boolean()

glance.db.sqlalchemy.migrate_repo.schema.DateTime()

glance.db.sqlalchemy.migrate_repo.schema.Integer()

glance.db.sqlalchemy.migrate_repo.schema.Numeric()

glance.db.sqlalchemy.migrate_repo.schema.PickleType()

glance.db.sqlalchemy.migrate_repo.schema.String(length)

glance.db.sqlalchemy.migrate_repo.schema.Text()

glance.db.sqlalchemy.migrate_repo.schema.create_tables(tables)

glance.db.sqlalchemy.migrate_repo.schema.drop_tables(tables)

glance.db.sqlalchemy.migrate_repo.schema.from_migration_import(module_name, fromlist)

Import a migration file and return the module

Parameters:

• module_name – name of migration module to import from (ex: 001_add_images_table)
• fromlist – list of items to import (ex: define_images_table)

Returns:

module object

This bit of ugliness warrants an explanation:

As you’re writing migrations, you’ll frequently want to refer to tables defined in previous migrations.

In the interest of not repeating yourself, you need a way of importing that table into a ‘future’ migration.

However, tables are bound to metadata, so what you need to import is really a table factory, which you can late-bind to your current metadata object.

Moreover, migrations begin with a number (001...), which means they aren’t valid Python identifiers. This means we can’t perform a ‘normal’ import on them (the Python lexer will ‘splode). Instead, we need to use __import__ magic to bring the table-factory into our namespace.

Example Usage:

(define_images_table,) = from_migration_import(

‘001_add_images_table’, [‘define_images_table’])

images = define_images_table(meta)

# Refer to images table

Module contents