RETIRED, Function as a Service for OpenStack
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# 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.
from alembic import context
from logging import config as c
from oslo_utils import importutils
from sqlalchemy import create_engine
from sqlalchemy import pool
from qinling.db.sqlalchemy import model_base
importutils.try_import('qinling.db.sqlalchemy.models')
# This is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
qinling_config = config.qinling_config
# Interpret the config file for Python logging.
# This line sets up loggers basically.
c.fileConfig(config.config_file_name)
# Add your model's MetaData object here for 'autogenerate' support.
target_metadata = model_base.QinlingSecureModelBase.metadata
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
context.configure(url=qinling_config.database.connection)
with context.begin_transaction():
context.run_migrations()
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.
"""
engine = create_engine(
qinling_config.database.connection,
poolclass=pool.NullPool
)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()