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1c45d9730ca6_increase_identity_length.py
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1c45d9730ca6_increase_identity_length.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.
''' increase identity length '''
import sqlalchemy as sa
from alembic import context, op
from alembic.op import alter_column, create_check_constraint, create_foreign_key, drop_constraint, execute
from rucio.db.sqla.util import try_drop_constraint
# Alembic revision identifiers
revision = '1c45d9730ca6'
down_revision = 'b4293a99f344'
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 in ['oracle', 'postgresql']:
alter_column('tokens', 'identity', existing_type=sa.String(255), type_=sa.String(2048), schema=schema[:-1])
alter_column('identities', 'identity', existing_type=sa.String(255), type_=sa.String(2048), schema=schema[:-1])
alter_column('account_map', 'identity', existing_type=sa.String(255), type_=sa.String(2048), schema=schema[:-1])
try_drop_constraint('IDENTITIES_TYPE_CHK', 'identities')
create_check_constraint(constraint_name='IDENTITIES_TYPE_CHK',
table_name='identities',
condition="identity_type in ('X509', 'GSS', 'USERPASS', 'SSH')")
try_drop_constraint('ACCOUNT_MAP_ID_TYPE_CHK', 'account_map')
create_check_constraint(constraint_name='ACCOUNT_MAP_ID_TYPE_CHK',
table_name='account_map',
condition="identity_type in ('X509', 'GSS', 'USERPASS', 'SSH')")
elif context.get_context().dialect.name == 'mysql':
alter_column('tokens', 'identity', existing_type=sa.String(255), type_=sa.String(2048), schema=schema[:-1])
# MySQL does not allow altering a column referenced by a ForeignKey
# so we need to drop that one first
drop_constraint('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', type_='foreignkey')
alter_column('identities', 'identity', existing_type=sa.String(255), type_=sa.String(2048), nullable=False, schema=schema[:-1])
alter_column('account_map', 'identity', existing_type=sa.String(255), type_=sa.String(2048), nullable=False, schema=schema[:-1])
create_foreign_key('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', 'identities', ['identity', 'identity_type'], ['identity', 'identity_type'])
op.execute('ALTER TABLE ' + schema + 'identities DROP CHECK IDENTITIES_TYPE_CHK') # pylint: disable=no-member
create_check_constraint(constraint_name='IDENTITIES_TYPE_CHK',
table_name='identities',
condition="identity_type in ('X509', 'GSS', 'USERPASS', 'SSH')")
op.execute('ALTER TABLE ' + schema + 'account_map DROP CHECK ACCOUNT_MAP_ID_TYPE_CHK') # pylint: disable=no-member
create_check_constraint(constraint_name='ACCOUNT_MAP_ID_TYPE_CHK',
table_name='account_map',
condition="identity_type in ('X509', 'GSS', 'USERPASS', 'SSH')")
def downgrade():
'''
Downgrade the database to the previous revision
'''
schema = context.get_context().version_table_schema + '.' if context.get_context().version_table_schema else ''
# Attention!
# This automatically removes all SSH keys to accommodate the column size and check constraint.
if context.get_context().dialect.name == 'oracle':
execute("DELETE FROM account_map WHERE identity_type='SSH'") # pylint: disable=no-member
execute("DELETE FROM identities WHERE identity_type='SSH'") # pylint: disable=no-member
try_drop_constraint('IDENTITIES_TYPE_CHK', 'identities')
create_check_constraint(constraint_name='IDENTITIES_TYPE_CHK',
table_name='identities',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
try_drop_constraint('ACCOUNT_MAP_ID_TYPE_CHK', 'account_map')
create_check_constraint(constraint_name='ACCOUNT_MAP_ID_TYPE_CHK',
table_name='account_map',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
alter_column('tokens', 'identity', existing_type=sa.String(2048), type_=sa.String(255))
alter_column('account_map', 'identity', existing_type=sa.String(2048), type_=sa.String(255))
alter_column('identities', 'identity', existing_type=sa.String(2048), type_=sa.String(255))
elif context.get_context().dialect.name == 'postgresql':
execute("DELETE FROM " + schema + "account_map WHERE identity_type='SSH'") # pylint: disable=no-member
execute("DELETE FROM " + schema + "identities WHERE identity_type='SSH'") # pylint: disable=no-member
drop_constraint('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', type_='foreignkey')
op.execute('ALTER TABLE ' + schema + 'identities DROP CONSTRAINT IF EXISTS "IDENTITIES_TYPE_CHK", ALTER COLUMN identity_type TYPE VARCHAR') # pylint: disable=no-member
create_check_constraint(constraint_name='IDENTITIES_TYPE_CHK',
table_name='identities',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
op.execute('ALTER TABLE ' + schema + 'account_map DROP CONSTRAINT IF EXISTS "ACCOUNT_MAP_ID_TYPE_CHK", ALTER COLUMN identity_type TYPE VARCHAR') # pylint: disable=no-member
create_check_constraint(constraint_name='ACCOUNT_MAP_ID_TYPE_CHK',
table_name='account_map',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
create_foreign_key('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', 'identities', ['identity', 'identity_type'], ['identity', 'identity_type'])
alter_column('tokens', 'identity', existing_type=sa.String(2048), type_=sa.String(255), schema=schema[:-1])
alter_column('account_map', 'identity', existing_type=sa.String(2048), type_=sa.String(255), schema=schema[:-1])
alter_column('identities', 'identity', existing_type=sa.String(2048), type_=sa.String(255), schema=schema[:-1])
elif context.get_context().dialect.name == 'mysql':
execute("DELETE FROM " + schema + "account_map WHERE identity_type='SSH'") # pylint: disable=no-member
execute("DELETE FROM " + schema + "identities WHERE identity_type='SSH'") # pylint: disable=no-member
op.execute('ALTER TABLE ' + schema + 'identities DROP CHECK IDENTITIES_TYPE_CHK') # pylint: disable=no-member
create_check_constraint(constraint_name='IDENTITIES_TYPE_CHK',
table_name='identities',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
op.execute('ALTER TABLE ' + schema + 'account_map DROP CHECK ACCOUNT_MAP_ID_TYPE_CHK') # pylint: disable=no-member
create_check_constraint(constraint_name='ACCOUNT_MAP_ID_TYPE_CHK',
table_name='account_map',
condition="identity_type in ('X509', 'GSS', 'USERPASS')")
alter_column('tokens', 'identity', existing_type=sa.String(2048), type_=sa.String(255), schema=schema[:-1])
# MySQL does not allow altering a column referenced by a ForeignKey
# so we need to drop that one first
drop_constraint('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', type_='foreignkey')
alter_column('account_map', 'identity', existing_type=sa.String(2048), type_=sa.String(255), nullable=False, schema=schema[:-1])
alter_column('identities', 'identity', existing_type=sa.String(2048), type_=sa.String(255), nullable=False, schema=schema[:-1])
create_foreign_key('ACCOUNT_MAP_ID_TYPE_FK', 'account_map', 'identities', ['identity', 'identity_type'], ['identity', 'identity_type'])