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86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
"""Pylons bootstrap environment.
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Place 'pylons_config_file' into alembic.ini, and the application will
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be loaded from there.
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"""
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from logging.config import fileConfig
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from paste.deploy import loadapp
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from alembic import context
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try:
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# if pylons app already in, don't create a new app
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from pylons import config as pylons_config
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pylons_config["__file__"]
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except:
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config = context.config
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# can use config['__file__'] here, i.e. the Pylons
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# ini file, instead of alembic.ini
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config_file = config.get_main_option("pylons_config_file")
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fileConfig(config_file)
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wsgi_app = loadapp("config:%s" % config_file, relative_to=".")
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# customize this section for non-standard engine configurations.
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meta = __import__(
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"%s.model.meta" % wsgi_app.config["pylons.package"]
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).model.meta
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# add your model's MetaData object here
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# for 'autogenerate' support
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# from myapp import mymodel
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# target_metadata = mymodel.Base.metadata
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target_metadata = None
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def run_migrations_offline():
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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context.configure(
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url=meta.engine.url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online():
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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# specify here how the engine is acquired
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# engine = meta.engine
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raise NotImplementedError("Please specify engine connectivity here")
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with engine.connect() as connection: # noqa
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context.configure(
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connection=connection, target_metadata=target_metadata
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)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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