openstack
/
mistral
Code Issues Proposed changes

Fix delayed calls DB migration 

When running mistral-db-manage upgrade head on an empty DB, the migration
returns the error index unique_key does not exist. This patch adds a
check for the index before dropping the index.

Change-Id: I777557b7412f473006885cf003519f5df30e4f09
Closes-Bug: #1621644
This commit is contained in:
Winson Chan 2016-09-08 21:45:33 +00:00
parent 2756415344
commit 1e2ecac58a
1 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
mistral/db/sqlalchemy/migration/alembic_migrations/versions/019_change_scheduler_schema.py
View File

@ -27,14 +27,24 @@ down_revision = '018'
from alembic import op
import sqlalchemy as sa
from sqlalchemy.engine import reflection
def upgrade():
op.drop_index(
'delayed_calls_v2_processing_execution_time',
table_name='delayed_calls_v2'
)
op.drop_index('unique_key', table_name='delayed_calls_v2')
inspect = reflection.Inspector.from_engine(op.get_bind())
unique_constraints = [
uc['name'] for uc in inspect.get_unique_constraints('delayed_calls_v2')
]
if 'delayed_calls_v2_processing_execution_time' in unique_constraints:
op.drop_index(
'delayed_calls_v2_processing_execution_time',
table_name='delayed_calls_v2'
)
if 'unique_key' in unique_constraints:
op.drop_index('unique_key', table_name='delayed_calls_v2')
op.drop_column('delayed_calls_v2', 'unique_key')
op.add_column(