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
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
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
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
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_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
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
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
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 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")
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")
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())
