def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
try:
connectable = placement_db.get_placement_engine()
except db_exc.CantStartEngineError:
# We are being called from a context where the database hasn't been
# configured so we need to set up Config and config the database.
# This is usually the alembic command line.
config = cfg.ConfigOpts()
conf.register_opts(config)
config([], project="placement", default_config_files=None)
placement_db.configure(config)
connectable = placement_db.get_placement_engine()
with connectable.connect() as connection:
context.configure(connection=connection,
target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
def get_engine(database='main', context=None):
if database == 'main':
return db_session.get_engine(context=context)
if database == 'api':
return db_session.get_api_engine()
if database == 'placement':
return placement_db.get_placement_engine()
def get_engine(self):
return db_api.get_placement_engine()
def get_engine():
return placement_db.get_placement_engine()