def upgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine
    (define_images_table, ) = from_migration_import('001_add_images_table',
                                                    ['define_images_table'])
    (define_image_properties_table, ) = from_migration_import(
        '002_add_image_properties_table', ['define_image_properties_table'])

    conn = migrate_engine.connect()
    images = define_images_table(meta)
    image_properties = define_image_properties_table(meta)

    # Steps to take, in this order:
    # 1) Move the existing type column from Image into
    #    ImageProperty for all image records that have a non-NULL
    #    type column
    # 2) Drop the type column in images
    # 3) Add the new columns to images

    # The below wackiness correlates to the following ANSI SQL:
    #   SELECT images.* FROM images
    #   LEFT JOIN image_properties
    #   ON images.id = image_properties.image_id
    #   AND image_properties.key = 'type'
    #   WHERE image_properties.image_id IS NULL
    #   AND images.type IS NOT NULL
    #
    # which returns all the images that have a type set
    # but that DO NOT yet have an image_property record
    # with key of type.
    sel = select([images],
                 from_obj=[
                     images.outerjoin(
                         image_properties,
                         and_(images.c.id == image_properties.c.image_id,
                              image_properties.c.key == 'type'))
                 ]).where(
                     and_(image_properties.c.image_id == None,
                          images.c.type != None))
    image_records = conn.execute(sel).fetchall()
    property_insert = image_properties.insert()
    for record in image_records:
        conn.execute(property_insert,
                     image_id=record.id,
                     key='type',
                     created_at=record.created_at,
                     deleted=False,
                     value=record.type)
    conn.close()

    disk_format = Column('disk_format', String(20))
    disk_format.create(images)
    container_format = Column('container_format', String(20))
    container_format.create(images)

    images.columns['type'].drop()
def upgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine
    (define_images_table,) = from_migration_import(
        '001_add_images_table', ['define_images_table'])
    (define_image_properties_table,) = from_migration_import(
        '002_add_image_properties_table', ['define_image_properties_table'])

    conn = migrate_engine.connect()
    images = define_images_table(meta)
    image_properties = define_image_properties_table(meta)

    # Steps to take, in this order:
    # 1) Move the existing type column from Image into
    #    ImageProperty for all image records that have a non-NULL
    #    type column
    # 2) Drop the type column in images
    # 3) Add the new columns to images

    # The below wackiness correlates to the following ANSI SQL:
    #   SELECT images.* FROM images
    #   LEFT JOIN image_properties
    #   ON images.id = image_properties.image_id
    #   AND image_properties.key = 'type'
    #   WHERE image_properties.image_id IS NULL
    #   AND images.type IS NOT NULL
    #
    # which returns all the images that have a type set
    # but that DO NOT yet have an image_property record
    # with key of type.
    sel = select([images], from_obj=[
        images.outerjoin(image_properties,
                         and_(images.c.id == image_properties.c.image_id,
                              image_properties.c.key == 'type'))]).where(
            and_(image_properties.c.image_id == None,
                 images.c.type != None))
    image_records = conn.execute(sel).fetchall()
    property_insert = image_properties.insert()
    for record in image_records:
        conn.execute(property_insert,
                     image_id=record.id,
                     key='type',
                     created_at=record.created_at,
                     deleted=False,
                     value=record.type)
    conn.close()

    disk_format = Column('disk_format', String(20))
    disk_format.create(images)
    container_format = Column('container_format', String(20))
    container_format.create(images)

    images.columns['type'].drop()
def define_image_properties_table(meta):
    (define_images_table,) = from_migration_import(
        '001_add_images_table', ['define_images_table'])

    images = define_images_table(meta)

    image_properties = Table('image_properties', meta,
        Column('id', Integer(), primary_key=True, nullable=False),
        Column('image_id', Integer(), ForeignKey('images.id'), nullable=False,
               index=True),
        Column('key', String(255), nullable=False),
        Column('value', Text()),
        Column('created_at', DateTime(), nullable=False),
        Column('updated_at', DateTime()),
        Column('deleted_at', DateTime()),
        Column('deleted', Boolean(), nullable=False, default=False,
               index=True),
        UniqueConstraint('image_id', 'key'),
        mysql_engine='InnoDB',
        useexisting=True)

    Index('ix_image_properties_image_id_key', image_properties.c.image_id,
          image_properties.c.key)

    return image_properties
Example #4
0
def define_image_properties_table(meta):
    (define_images_table,) = from_migration_import(
        '001_add_images_table', ['define_images_table'])

    images = define_images_table(meta)

    image_properties = Table('image_properties', meta,
        Column('id', Integer(), primary_key=True, nullable=False),
        Column('image_id', Integer(), ForeignKey('images.id'), nullable=False,
               index=True),
        Column('key', String(255), nullable=False),
        Column('value', Text()),
        Column('created_at', DateTime(), nullable=False),
        Column('updated_at', DateTime()),
        Column('deleted_at', DateTime()),
        Column('deleted', Boolean(), nullable=False, default=False,
               index=True),
        UniqueConstraint('image_id', 'key'),
        mysql_engine='InnoDB',
        extend_existing=True)

    Index('ix_image_properties_image_id_key', image_properties.c.image_id,
          image_properties.c.key)

    return image_properties
Example #5
0
def get_image_properties_table(meta):
    """
    Returns the Table object for the image_properties table that
    corresponds to the image_properties table definition of this version.
    """
    (get_images_table,) = from_migration_import(
        '004_add_checksum', ['get_images_table'])

    images = get_images_table(meta)

    image_properties = Table('image_properties', meta,
        Column('id', Integer(), primary_key=True, nullable=False),
        Column('image_id', Integer(), ForeignKey('images.id'), nullable=False,
               index=True),
        Column('name', String(255), nullable=False),
        Column('value', Text()),
        Column('created_at', DateTime(), nullable=False),
        Column('updated_at', DateTime()),
        Column('deleted_at', DateTime()),
        Column('deleted', Boolean(), nullable=False, default=False,
               index=True),
        UniqueConstraint('image_id', 'name'),
        mysql_engine='InnoDB',
        useexisting=True)

    return image_properties
def get_image_members_table(meta):
    """
    No changes to the image members table from 008...
    """
    (get_image_members_table,) = from_migration_import("008_add_image_members_table", ["get_image_members_table"])

    images = get_image_members_table(meta)
    return images
Example #7
0
def get_image_members_table(meta):
    """
    No changes to the image members table from 008...
    """
    (get_image_members_table, ) = from_migration_import(
        '008_add_image_members_table', ['get_image_members_table'])

    images = get_image_members_table(meta)
    return images
Example #8
0
def get_image_properties_table(meta):
    """
    No changes to the image properties table from 006...
    """
    (get_image_properties_table,) = from_migration_import(
        '006_key_to_name', ['get_image_properties_table'])

    image_properties = get_image_properties_table(meta)
    return image_properties
Example #9
0
def get_images_table(meta):
    """
    No changes to the image properties table from 002...
    """
    (get_images_table,) = from_migration_import(
        '004_add_checksum', ['get_images_table'])

    images = get_images_table(meta)
    return images
Example #10
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def get_image_properties_table(meta):
    """
    No changes to the image properties table from 002...
    """
    (define_image_properties_table, ) = from_migration_import(
        '002_add_image_properties_table', ['define_image_properties_table'])

    image_properties = define_image_properties_table(meta)
    return image_properties
def get_image_properties_table(meta):
    """
    No changes to the image properties table from 007...
    """
    (get_image_properties_table, ) = from_migration_import(
        '007_add_owner', ['get_image_properties_table'])

    image_properties = get_image_properties_table(meta)
    return image_properties
Example #12
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def get_image_properties_table(meta):
    """
    No changes to the image properties table from 006...
    """
    (get_image_properties_table, ) = from_migration_import(
        '006_key_to_name', ['get_image_properties_table'])

    image_properties = get_image_properties_table(meta)
    return image_properties
def get_image_properties_table(meta):
    """
    No changes to the image properties table from 007...
    """
    (get_image_properties_table,) = from_migration_import(
        '007_add_owner', ['get_image_properties_table'])

    image_properties = get_image_properties_table(meta)
    return image_properties
Example #14
0
def get_image_properties_table(meta):
    """
    No changes to the image properties table from 002...
    """
    (define_image_properties_table,) = from_migration_import(
        '002_add_image_properties_table', ['define_image_properties_table'])

    image_properties = define_image_properties_table(meta)
    return image_properties
Example #15
0
def upgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine

    (get_image_properties_table, ) = from_migration_import(
        '004_add_checksum', ['get_image_properties_table'])
    image_properties = get_image_properties_table(meta)

    index = Index('ix_image_properties_image_id_key',
                  image_properties.c.image_id, image_properties.c.key)
    index.rename('ix_image_properties_image_id_name')

    image_properties = get_image_properties_table(meta)
    image_properties.columns['key'].alter(name="name")
Example #16
0
def upgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine

    (get_image_properties_table,) = from_migration_import(
        '004_add_checksum', ['get_image_properties_table'])
    image_properties = get_image_properties_table(meta)

    index = Index('ix_image_properties_image_id_get',
                  image_properties.c.image_id,
          image_properties.c.key)
    index.rename('ix_image_properties_image_id_name')

    image_properties = get_image_properties_table(meta)
    image_properties.columns['key'].alter(name="name")
Example #17
0
def upgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine

    # No changes to SQLite stores are necessary, since
    # there is no BIG INTEGER type in SQLite. Unfortunately,
    # running the Python 005_size_big_integer.py migration script
    # on a SQLite datastore results in an error in the sa-migrate
    # code that does the workarounds for SQLite not having
    # ALTER TABLE MODIFY COLUMN ability

    dialect = migrate_engine.url.get_dialect().name

    if not dialect.startswith('sqlite'):
        (get_images_table, ) = from_migration_import('003_add_disk_format',
                                                     ['get_images_table'])

        images = get_images_table(meta)
        images.columns['size'].alter(type=BigInteger())