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3152492b110b_added_staging_area_column.py
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3152492b110b_added_staging_area_column.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.
''' added staging_area column '''
import sqlalchemy as sa
from alembic import context, op
from alembic.op import add_column, create_check_constraint, drop_column, drop_constraint
from rucio.db.sqla.util import try_drop_constraint
# Alembic revision identifiers
revision = '3152492b110b'
down_revision = '22cf51430c78'
def upgrade():
'''
Upgrade the database to this revision
'''
schema = context.get_context().version_table_schema + '.' if context.get_context().version_table_schema else ''
if context.get_context().dialect.name == 'oracle':
add_column('rses', sa.Column('staging_area', sa.Boolean(name='RSE_STAGING_AREA_CHK', create_constraint=True), default=False))
try_drop_constraint('REQUESTS_TYPE_CHK', 'requests')
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T', 'I', '0')")
elif context.get_context().dialect.name == 'postgresql':
add_column('rses', sa.Column('staging_area', sa.Boolean(name='RSE_STAGING_AREA_CHK', create_constraint=True), default=False), schema=schema[:-1])
drop_constraint('REQUESTS_TYPE_CHK', 'requests', type_='check')
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T', 'I', '0')")
elif context.get_context().dialect.name == 'mysql':
add_column('rses', sa.Column('staging_area', sa.Boolean(name='RSE_STAGING_AREA_CHK', create_constraint=True), default=False), schema=schema[:-1])
op.execute('ALTER TABLE ' + schema + 'requests DROP CHECK REQUESTS_TYPE_CHK') # pylint: disable=no-member
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T', 'I', '0')")
def downgrade():
'''
Downgrade the database to the previous revision
'''
schema = context.get_context().version_table_schema + '.' if context.get_context().version_table_schema else ''
if context.get_context().dialect.name == 'oracle':
try_drop_constraint('RSE_STAGING_AREA_CHK', 'rses')
try_drop_constraint('REQUESTS_TYPE_CHK', 'requests')
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T')")
drop_column('rses', 'staging_area')
elif context.get_context().dialect.name == 'postgresql':
op.execute('ALTER TABLE ' + schema + 'requests DROP CONSTRAINT IF EXISTS "REQUESTS_TYPE_CHK", ALTER COLUMN request_type TYPE CHAR') # pylint: disable=no-member
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T')")
drop_column('rses', 'staging_area', schema=schema[:-1])
elif context.get_context().dialect.name == 'mysql':
create_check_constraint(constraint_name='REQUESTS_TYPE_CHK', table_name='requests',
condition="request_type in ('U', 'D', 'T')")
drop_column('rses', 'staging_area', schema=schema[:-1])