75 lines
1.9 KiB
Python
75 lines
1.9 KiB
Python
|
# -*- coding: utf-8; mode: python; -*-
|
||
|
|
"""
|
||
|
|
Alembic environment script
|
||
|
|
"""
|
||
|
|
|
||
|
|
from alembic import context
|
||
|
|
from sqlalchemy.orm import configure_mappers
|
||
|
|
|
||
|
|
from rattail.config import make_config
|
||
|
|
from rattail.db.util import get_default_engine
|
||
|
|
from rattail.db.continuum import configure_versioning
|
||
|
|
|
||
|
|
|
||
|
|
# this is the Alembic Config object, which provides
|
||
|
|
# access to the values within the .ini file in use.
|
||
|
|
alembic_config = context.config
|
||
|
|
|
||
|
|
# use same config file for Rattail
|
||
|
|
rattail_config = make_config(alembic_config.config_file_name, usedb=False, versioning=False)
|
||
|
|
|
||
|
|
# configure Continuum..this is trickier than we want but it works..
|
||
|
|
configure_versioning(rattail_config, force=True)
|
||
|
|
from rattail_demo.db import model
|
||
|
|
configure_mappers()
|
||
|
|
|
||
|
|
# needed for 'autogenerate' support
|
||
|
|
target_metadata = model.Base.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.
|
||
|
|
|
||
|
|
"""
|
||
|
|
engine = get_default_engine(rattail_config)
|
||
|
|
context.configure(
|
||
|
|
url=engine.url,
|
||
|
|
target_metadata=target_metadata)
|
||
|
|
|
||
|
|
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 = get_default_engine(rattail_config)
|
||
|
|
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()
|