88 lines
2.3 KiB
Python
88 lines
2.3 KiB
Python
# migrations/env.py
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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 alembic import context
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from sqlalchemy import create_engine, pool
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# 1) Берём Base из session.py
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from app.db.session import Base
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load_dotenv()
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# 2) Импортируем сборщик моделей, чтобы metadata увидело всё
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import app.db.base # noqa: F401
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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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target_metadata = Base.metadata
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def build_sync_url() -> str:
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"""
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Возвращает sync-URL для Alembic.
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Приоритет:
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1) DATABASE_URL_SYNC (полная строка)
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2) Конструктор из DB_HOST/DB_PORT/DB_NAME/DB_USER/DB_PASSWORD
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"""
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env_url = os.getenv("DATABASE_URL_SYNC")
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if env_url and "://" in env_url:
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return env_url
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host = os.getenv("DB_HOST")
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port = os.getenv("DB_PORT", "3306")
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name = os.getenv("DB_NAME")
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user = os.getenv("DB_USER")
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pwd = os.getenv("DB_PASSWORD")
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if host and name and user is not None and pwd is not None:
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# ВАЖНО: для Alembic нужна sync-строка с PyMySQL
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return f"mariadb+pymysql://{user}:{pwd}@{host}:{port}/{name}"
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raise RuntimeError(
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"No valid sync DB URL. Set DATABASE_URL_SYNC or DB_HOST/DB_PORT/DB_NAME/DB_USER/DB_PASSWORD."
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)
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def run_migrations_offline() -> None:
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url = build_sync_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": "pyformat"},
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compare_type=True,
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compare_server_default=True,
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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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url = build_sync_url()
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connectable = create_engine(
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url,
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future=True,
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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,
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target_metadata=target_metadata,
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compare_type=True,
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compare_server_default=True,
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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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