Files
shaguabijia-app-server/alembic/env.py
T
马润林 1aafc28621 feat: 正式 App 后端登录模块 v0.1.0
引入 JWT 认证、极光一键登录、短信 mock 登录与用户表,并补充技术实施文档与部署配置。

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-23 17:37:18 +08:00

67 lines
2.0 KiB
Python

"""Alembic 环境。
跟标准模板的差别:
- 从 app.core.config.settings 读 DATABASE_URL,不再走 alembic.ini 的 sqlalchemy.url
- import app.db.base 让 Base.metadata 包含所有 model 表(model 文件首次导入时注册到 metadata)
"""
from __future__ import annotations
from logging.config import fileConfig
from alembic import context
from sqlalchemy import engine_from_config, pool
from app.core.config import settings
from app.db.base import Base # noqa: F401 (触发 model 注册)
config = context.config
if config.config_file_name is not None:
fileConfig(config.config_file_name)
# 让 alembic 用我们的 DATABASE_URL,不是 alembic.ini 里的(空)
config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)
target_metadata = Base.metadata
def run_migrations_offline() -> None:
"""生成 SQL 但不连库。一般用于 review。"""
context.configure(
url=settings.DATABASE_URL,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
render_as_batch=settings.DATABASE_URL.startswith("sqlite"),
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""常规模式:连库执行 migration。
render_as_batch=True 让 SQLite 也能做 ALTER COLUMN(SQLite 原生不支持,
Alembic 用"重建表"的方式模拟)。
"""
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,
render_as_batch=settings.DATABASE_URL.startswith("sqlite"),
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()