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45378a1e76a8_create_collection_replica_table.py
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45378a1e76a8_create_collection_replica_table.py
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# Copyright European Organization for Nuclear Research (CERN) since 2012
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
''' create collection replica table '''
import datetime
import sqlalchemy as sa
from alembic import context
from alembic.op import create_check_constraint, create_foreign_key, create_index, create_primary_key, create_table, drop_table
from rucio.db.sqla.constants import DIDType, ReplicaState
from rucio.db.sqla.types import GUID
from rucio.db.sqla.util import try_drop_constraint
# Alembic revision identifiers
revision = '45378a1e76a8'
down_revision = 'a93e4e47bda'
def upgrade():
'''
Upgrade the database to this revision
'''
if context.get_context().dialect.name in ['oracle', 'mysql', 'postgresql']:
create_table('collection_replicas',
sa.Column('scope', sa.String(25)),
sa.Column('name', sa.String(255)),
sa.Column('did_type', sa.Enum(DIDType,
name='COLLECTION_REPLICAS_TYPE_CHK',
create_constraint=True,
values_callable=lambda obj: [e.value for e in obj])),
sa.Column('rse_id', GUID()),
sa.Column('bytes', sa.BigInteger),
sa.Column('length', sa.BigInteger),
sa.Column('state', sa.Enum(ReplicaState,
name='COLLECTION_REPLICAS_STATE_CHK',
create_constraint=True,
values_callable=lambda obj: [e.value for e in obj]),
default=ReplicaState.UNAVAILABLE),
sa.Column('accessed_at', sa.DateTime),
sa.Column('created_at', sa.DateTime, default=datetime.datetime.utcnow),
sa.Column('updated_at', sa.DateTime, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow))
create_primary_key('COLLECTION_REPLICAS_PK', 'collection_replicas', ['scope', 'name', 'rse_id'])
create_foreign_key('COLLECTION_REPLICAS_LFN_FK', 'collection_replicas', 'dids', ['scope', 'name'], ['scope', 'name'])
create_foreign_key('COLLECTION_REPLICAS_RSE_ID_FK', 'collection_replicas', 'rses', ['rse_id'], ['id'])
create_check_constraint('COLLECTION_REPLICAS_SIZE_NN', 'collection_replicas', 'bytes IS NOT NULL')
create_check_constraint('COLLECTION_REPLICAS_STATE_NN', 'collection_replicas', 'state IS NOT NULL')
create_index('COLLECTION_REPLICAS_RSE_ID_IDX', 'collection_replicas', ['rse_id'])
def downgrade():
'''
Downgrade the database to the previous revision
'''
if context.get_context().dialect.name == 'oracle':
try_drop_constraint('COLLECTION_REPLICAS_STATE_CHK', 'collection_replicas')
drop_table('collection_replicas')
elif context.get_context().dialect.name == 'postgresql':
drop_table('collection_replicas')
elif context.get_context().dialect.name == 'mysql':
drop_table('collection_replicas')