69 lines
1.6 KiB
Python
69 lines
1.6 KiB
Python
"""
|
|
Alembic 环境配置
|
|
"""
|
|
from logging.config import fileConfig
|
|
from sqlalchemy import engine_from_config
|
|
from sqlalchemy import pool
|
|
from alembic import context
|
|
import os
|
|
import sys
|
|
|
|
# 添加项目路径
|
|
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
|
|
|
from app.extensions import db
|
|
from app.config import Config
|
|
|
|
# Alembic Config 对象
|
|
config = context.config
|
|
|
|
# 配置日志
|
|
if config.config_file_name is not None:
|
|
fileConfig(config.config_file_name)
|
|
|
|
# 模型元数据
|
|
target_metadata = db.Model.metadata
|
|
|
|
def get_url():
|
|
"""获取数据库 URL"""
|
|
return os.getenv('DATABASE_URL', 'sqlite:///pit_router.db')
|
|
|
|
|
|
def run_migrations_offline() -> None:
|
|
"""离线迁移"""
|
|
url = get_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:
|
|
"""在线迁移"""
|
|
configuration = config.get_section(config.config_ini_section)
|
|
configuration["sqlalchemy.url"] = get_url()
|
|
connectable = engine_from_config(
|
|
configuration,
|
|
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()
|