41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
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"""Alembic environment configuration."""
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import os
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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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config = context.config
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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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# Override sqlalchemy.url from environment variable
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db_url = os.environ.get("DATABASE_URL", "")
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if db_url:
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config.set_main_option("sqlalchemy.url", db_url)
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode."""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(url=url, target_metadata=None, literal_binds=True, dialect_opts={"paramstyle": "named"})
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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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"""Run migrations in 'online' mode."""
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connectable = create_engine(config.get_main_option("sqlalchemy.url"), poolclass=pool.NullPool)
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with connectable.connect() as connection:
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context.configure(connection=connection, target_metadata=None)
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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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