# -*- coding: utf-8 -*-
###########################################################################
# Copyright (c), The AiiDA team. All rights reserved. #
# This file is part of the AiiDA code. #
# #
# The code is hosted on GitHub at https://github.com/aiidateam/aiida-core #
# For further information on the license, see the LICENSE.txt file #
# For further information please visit http://www.aiida.net #
###########################################################################
"""Move trajectory symbols from repository array to attribute
Revision ID: 12536798d4d3
Revises: 37f3d4882837
Create Date: 2019-01-21 10:15:02.451308
"""
# pylint: disable=invalid-name
# Remove when https://github.com/PyCQA/pylint/issues/1931 is fixed
# pylint: disable=no-member,no-name-in-module,import-error
from alembic import op
from sqlalchemy import cast, String, Integer
from sqlalchemy.sql import table, column, select, func, text
from sqlalchemy.dialects.postgresql import UUID, JSONB
from aiida.backends.general.migrations.utils import load_numpy_array_from_repository
# revision identifiers, used by Alembic.
revision = '12536798d4d3'
down_revision = '37f3d4882837'
branch_labels = None
depends_on = None
# Here we duplicate the data stored in a TrajectoryData symbols array, storing it as an attribute.
# We delete the duplicates in the following migration (ce56d84bcc35) to avoid to delete data
[docs]def upgrade():
"""Migrations for the upgrade."""
# yapf:disable
connection = op.get_bind()
DbNode = table('db_dbnode', column('id', Integer), column('uuid', UUID), column('type', String),
column('attributes', JSONB))
nodes = connection.execute(
select([DbNode.c.id, DbNode.c.uuid]).where(
DbNode.c.type == op.inline_literal('node.data.array.trajectory.TrajectoryData.'))).fetchall()
for pk, uuid in nodes:
symbols = load_numpy_array_from_repository(uuid, 'symbols').tolist()
connection.execute(DbNode.update().where(DbNode.c.id == pk).values(
attributes=func.jsonb_set(DbNode.c.attributes, op.inline_literal('{"symbols"}'), cast(symbols, JSONB))))
[docs]def downgrade():
"""Migrations for the downgrade."""
# yapf:disable
connection = op.get_bind()
DbNode = table('db_dbnode', column('id', Integer), column('uuid', UUID), column('type', String),
column('attributes', JSONB))
nodes = connection.execute(
select([DbNode.c.id, DbNode.c.uuid]).where(
DbNode.c.type == op.inline_literal('node.data.array.trajectory.TrajectoryData.'))).fetchall()
for pk, _ in nodes:
connection.execute(
text("""UPDATE db_dbnode SET attributes = attributes #- '{{symbols}}' WHERE id = {}""".format(pk)))