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fdfb5b1a5e
* Set up alembic migration usage * Fix import order, add isort as alembic hook * Only run migrations if needed * Include date as part of migration file name for better sorting * Skip initial migrations if tables already exist This eases the transition from a pre-alembic state * Fix deprecation warning in alembic revision * Add alembic test stubs
78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
from sqlalchemy import engine_from_config, pool
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import mealie.db.models._all_models # noqa: F401
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from alembic import context
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from mealie.core.config import get_app_settings
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from mealie.db.models._model_base import SqlAlchemyBase
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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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 = SqlAlchemyBase.metadata
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# other values from the config, defined by the needs of env.py,
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# can be acquired:
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# my_important_option = config.get_main_option("my_important_option")
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# ... etc.
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# Set DB url from config
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settings = get_app_settings()
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config.set_main_option("sqlalchemy.url", settings.DB_URL)
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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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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=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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connectable = engine_from_config(
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config.get_section(config.config_ini_section),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(
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connection=connection, target_metadata=target_metadata, user_module_prefix="mealie.db.migration_types."
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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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