58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
"""Alembic environment — wired to our SQLAlchemy models and DATABASE_URL."""
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import os
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from logging.config import fileConfig
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from dotenv import load_dotenv
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from sqlalchemy import engine_from_config, pool
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from alembic import context
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# Load .env so DATABASE_URL is available when running alembic locally.
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load_dotenv()
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# Alembic Config object
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config = context.config
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# Set up loggers from alembic.ini
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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 (takes precedence over alembic.ini).
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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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# Import models so Alembic autogenerate can see the metadata.
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from app.extensions import db # noqa: E402
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import app.models # noqa: E402, F401 — registers all models on db.metadata
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target_metadata = db.metadata
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def run_migrations_offline() -> None:
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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() -> None:
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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(connection=connection, target_metadata=target_metadata)
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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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