Synnefo

"""update account in paths

Revision ID: 165ba3fbfe53

Revises: 3dd56e750a3

Create Date: 2012-12-04 19:08:23.933634

"""

# revision identifiers, used by Alembic.

revision = '165ba3fbfe53'

down_revision = '3dd56e750a3'

from alembic import op

from sqlalchemy.sql import table, column

from synnefo.lib.astakos import get_user_uuid, get_username as get_user_username

from pithos.api.settings import SERVICE_TOKEN, USER_INFO_URL

import sqlalchemy as sa

catalog = {}

def get_uuid(account):

    global catalog

    uuid = catalog.get(account)

    if uuid:

        return uuid

    try:

        uuid = get_user_uuid(SERVICE_TOKEN, account, USER_INFO_URL)

    except Exception, e:

        print 'Unable to retrieve uuid for %s: %s' % (account, e)

        return

    else:

        if uuid:

            catalog[account] = uuid

        return uuid

inverse_catalog = {}

def get_username(account):

    global inverse_catalog

    username = inverse_catalog.get(account)

    if username:

        return username

    try:

        username = get_user_username(SERVICE_TOKEN, account, USER_INFO_URL)

    except Exception, e:

        print 'Unable to retrieve username for %s: %s' % (account, e)

        return

    else:

        if username:

            catalog[account] = username

        return username

n = table(

    'nodes',

    column('node', sa.Integer),

    column('path', sa.String(2048))

)

p = table(

    'public',

    column('public_id', sa.Integer),

    column('path', sa.String(2048))

)

x = table(

    'xfeatures',

    column('feature_id', sa.Integer),

    column('path', sa.String(2048))

)

def upgrade():

    connection = op.get_bind()

    s = sa.select([n.c.node, n.c.path])

    nodes = connection.execute(s).fetchall()

    for node, path in nodes:

        account, sep, rest = path.partition('/')

        uuid = get_uuid(account)

        if not uuid:

            continue

        path = sep.join([uuid, rest])

        u = n.update().where(n.c.node == node).values({'path':path})

        connection.execute(u)

    s = sa.select([p.c.public_id, p.c.path])

    public = connection.execute(s).fetchall()

    for id, path in public:

        account, sep, rest = path.partition('/')

        uuid = get_uuid(account)

        if not uuid:

            continue

        path = sep.join([uuid, rest])

        u = p.update().where(p.c.public_id == id).values({'path':path})

        connection.execute(u)

    s = sa.select([x.c.feature_id, x.c.path])

    xfeatures = connection.execute(s).fetchall()

    for id, path in xfeatures:

        account, sep, rest = path.partition('/')

        uuid = get_uuid(account)

        if not uuid:

            continue

        path = sep.join([uuid, rest])

        u = x.update().where(x.c.feature_id == id).values({'path':path})

        connection.execute(u)

def downgrade():

    connection = op.get_bind()

    s = sa.select([n.c.node, n.c.path])

    nodes = connection.execute(s).fetchall()

    for node, path in nodes:

        account, sep, rest = path.partition('/')

        username = get_username(account)

        if not username:

            continue

        path = sep.join([username, rest])

        u = n.update().where(n.c.node == node).values({'path':path})

        connection.execute(u)

    s = sa.select([p.c.public_id, p.c.path])

    public = connection.execute(s).fetchall()

    for id, path in public:

        account, sep, rest = path.partition('/')

        username = get_username(account)

        if not username:

            continue

        path = sep.join([username, rest])

        u = p.update().where(p.c.public_id == id).values({'path':path})

        connection.execute(u)

    s = sa.select([x.c.feature_id, x.c.path])

    xfeatures = connection.execute(s).fetchall()

    for id, path in xfeatures:

        account, sep, rest = path.partition('/')

        username = get_username(account)

        if not username:

            continue

        path = sep.join([username, rest])

        u = x.update().where(x.c.feature_id == id).values({'path':path})

        connection.execute(u)