44 lines
1.3 KiB
Python
44 lines
1.3 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.
|
|
#
|
|
|
|
"""Allow comments to be replies to other comments
|
|
|
|
Revision ID: 055
|
|
Revises: 054
|
|
Create Date: 2016-03-05 23:35:40.379333
|
|
|
|
"""
|
|
|
|
|
|
from alembic import op
|
|
import sqlalchemy as sa
|
|
|
|
|
|
# revision identifiers, used by Alembic.
|
|
revision = '055'
|
|
down_revision = '054'
|
|
|
|
|
|
def upgrade(active_plugins=None, options=None):
|
|
op.add_column(
|
|
'comments', sa.Column('in_reply_to', sa.Integer(), nullable=True))
|
|
dialect = op.get_bind().engine.dialect
|
|
if dialect.supports_alter:
|
|
op.create_foreign_key(
|
|
'comments_ibfk_1', 'comments', 'comments', ['in_reply_to'], ['id'])
|
|
|
|
|
|
def downgrade(active_plugins=None, options=None):
|
|
op.drop_constraint('comments_ibfk_1', 'comments', type_='foreignkey')
|
|
op.drop_column('comments', 'in_reply_to')
|