Files
zcglxt/backend/alembic/env.py

67 lines
1.6 KiB
Python

"""
Alembic环境配置
"""
from logging.config import fileConfig
from sqlalchemy import engine_from_config, pool
from alembic import context
import sys
from pathlib import Path
# 添加项目根目录到Python路径
sys.path.append(str(Path(__file__).resolve().parents[1]))
from app.core.config import settings
from app.db.base import Base
from app.models import user # 导入所有模型
# Alembic配置对象
config = context.config
# 设置数据库URL
config.set_main_option("sqlalchemy.url", settings.DATABASE_URL.replace("+asyncpg", ""))
# 解析日志配置
if config.config_file_name is not None:
fileConfig(config.config_file_name)
# 模型的元数据
target_metadata = Base.metadata
def run_migrations_offline() -> None:
"""离线模式运行迁移"""
url = config.get_main_option("sqlalchemy.url")
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""在线模式运行迁移"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()