Mercurial > libervia-backend
comparison libervia/backend/memory/migration/versions/610345f77e75_add_version_id_to_history.py @ 4152:23d21daed216
core (memory/sqla_mapping): add a `version_id` column to detect race conditions.
author | Goffi <goffi@goffi.org> |
---|---|
date | Wed, 22 Nov 2023 14:52:00 +0100 |
parents | |
children | 0d7bb4df2343 |
comparison
equal
deleted
inserted
replaced
4151:18026ce0819c | 4152:23d21daed216 |
---|---|
1 """add "version_id" to History | |
2 | |
3 Revision ID: 610345f77e75 | |
4 Revises: 2ab01aa1f686 | |
5 Create Date: 2023-11-20 17:33:53.544032 | |
6 | |
7 """ | |
8 from alembic import op | |
9 import sqlalchemy as sa | |
10 | |
11 | |
12 # revision identifiers, used by Alembic. | |
13 revision = '610345f77e75' | |
14 down_revision = '2ab01aa1f686' | |
15 branch_labels = None | |
16 depends_on = None | |
17 | |
18 | |
19 def upgrade(): | |
20 with op.batch_alter_table('history', schema=None) as batch_op: | |
21 batch_op.add_column(sa.Column('version_id', sa.Integer(), server_default=sa.text('1'), nullable=False)) | |
22 | |
23 | |
24 def downgrade(): | |
25 with op.batch_alter_table('history', schema=None) as batch_op: | |
26 batch_op.drop_column('version_id') |