Files
LangBot/src/langbot/pkg/persistence/migrations/dbm023_model_fallback_config.py
2026-03-12 03:33:05 +08:00

103 lines
4.0 KiB
Python

from .. import migration
import sqlalchemy
import json
@migration.migration_class(23)
class DBMigrateModelFallbackConfig(migration.DBMigration):
"""Convert model field from plain UUID string to object with primary/fallbacks"""
async def upgrade(self):
"""Upgrade"""
result = await self.ap.persistence_mgr.execute_async(
sqlalchemy.text('SELECT uuid, config FROM legacy_pipelines')
)
pipelines = result.fetchall()
current_version = self.ap.ver_mgr.get_current_version()
for pipeline_row in pipelines:
uuid = pipeline_row[0]
config = json.loads(pipeline_row[1]) if isinstance(pipeline_row[1], str) else pipeline_row[1]
if 'ai' not in config or 'local-agent' not in config['ai']:
continue
local_agent = config['ai']['local-agent']
changed = False
# Convert model from string to object
model_value = local_agent.get('model', '')
if isinstance(model_value, str):
local_agent['model'] = {
'primary': model_value,
'fallbacks': [],
}
changed = True
# Remove leftover fallback-models field if present
if 'fallback-models' in local_agent:
del local_agent['fallback-models']
changed = True
if not changed:
continue
# Update using raw SQL with compatibility for both SQLite and PostgreSQL
if self.ap.persistence_mgr.db.name == 'postgresql':
await self.ap.persistence_mgr.execute_async(
sqlalchemy.text(
'UPDATE legacy_pipelines SET config = :config::jsonb, for_version = :for_version WHERE uuid = :uuid'
),
{'config': json.dumps(config), 'for_version': current_version, 'uuid': uuid},
)
else:
await self.ap.persistence_mgr.execute_async(
sqlalchemy.text(
'UPDATE legacy_pipelines SET config = :config, for_version = :for_version WHERE uuid = :uuid'
),
{'config': json.dumps(config), 'for_version': current_version, 'uuid': uuid},
)
async def downgrade(self):
"""Downgrade"""
result = await self.ap.persistence_mgr.execute_async(
sqlalchemy.text('SELECT uuid, config FROM legacy_pipelines')
)
pipelines = result.fetchall()
current_version = self.ap.ver_mgr.get_current_version()
for pipeline_row in pipelines:
uuid = pipeline_row[0]
config = json.loads(pipeline_row[1]) if isinstance(pipeline_row[1], str) else pipeline_row[1]
if 'ai' not in config or 'local-agent' not in config['ai']:
continue
local_agent = config['ai']['local-agent']
# Convert model from object back to string
model_value = local_agent.get('model', '')
if isinstance(model_value, dict):
local_agent['model'] = model_value.get('primary', '')
else:
continue
# Update using raw SQL with compatibility for both SQLite and PostgreSQL
if self.ap.persistence_mgr.db.name == 'postgresql':
await self.ap.persistence_mgr.execute_async(
sqlalchemy.text(
'UPDATE legacy_pipelines SET config = :config::jsonb, for_version = :for_version WHERE uuid = :uuid'
),
{'config': json.dumps(config), 'for_version': current_version, 'uuid': uuid},
)
else:
await self.ap.persistence_mgr.execute_async(
sqlalchemy.text(
'UPDATE legacy_pipelines SET config = :config, for_version = :for_version WHERE uuid = :uuid'
),
{'config': json.dumps(config), 'for_version': current_version, 'uuid': uuid},
)