53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
from logging.config import fileConfig
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from alembic import context
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from sqlalchemy import create_engine, pool
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from app.config import settings
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from app.db import Base
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import app.models # noqa: F401 - registriert die Tabellen bei Base
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config = context.config
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# WICHTIG: die Datenbank-URL NICHT ueber config.set_main_option() setzen.
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# alembic.ini wird von configparser mit BasicInterpolation gelesen, und
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# der deutet jedes "%" als Variablenreferenz. Ein URL-kodiertes Passwort
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# (z.B. "%21" fuer "!") laesst den Aufruf mit
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# ValueError: invalid interpolation syntax
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# scheitern. Die Engine wird deshalb hier direkt gebaut.
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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context.configure(
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url=settings.database_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() -> None:
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connectable = create_engine(settings.database_url, poolclass=pool.NullPool)
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with connectable.connect() as connection:
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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connectable.dispose()
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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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