storyboard/storyboard/db/migration/alembic_migrations/versions/010_remove_legacy_priority.py

62 lines
1.6 KiB
Python

# 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.
#
"""Remove legacy priority column
Revision ID: 010
Revises: 008
Create Date: 2014-03-24 14:00:19.159763
"""
# revision identifiers, used by Alembic.
# 009 is skipped on purpose due to a deployment sequencing bug
revision = '010'
down_revision = '008'
from alembic import op
import sqlalchemy as sa
MYSQL_ENGINE = 'InnoDB'
MYSQL_CHARSET = 'utf8'
def _define_enums():
storyboard_priority = sa.Enum(
'Undefined', 'Low', 'Medium', 'High', 'Critical',
name='priority')
return {
'storyboard_priority': storyboard_priority
}
def upgrade(active_plugins=None, options=None):
op.drop_column('stories', 'priority')
# Need to explicitly delete enums during migrations for Postgres
enums = _define_enums()
for enum in enums.values():
enum.drop(op.get_bind())
def downgrade(active_plugins=None, options=None):
enums = _define_enums()
for enum in enums.values():
enum.create(op.get_bind())
op.add_column('stories', sa.Column('priority',
enums['storyboard_priority'],
nullable=True))