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beige/backend/alembic/env.py
yangqianqian 6a2632da70 baseline: Clover 独立仓库首次基线提交
将 Clover 从上层产品包旧仓库中独立出来,建立专属版本控制。
当前状态=纵切片端到端已打通(登录→选品→出文出图→审核→下载包),
M1文案质量去套路化已验收。此提交作为后续按核销清单逐条修复的基线。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-16 11:30:22 +08:00

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"""
alembic/env.py — Alembic 运行环境配置
从环境变量读取 DATABASE_URL不硬编码。
"""
import os
from logging.config import fileConfig
from alembic import context
from sqlalchemy import engine_from_config, pool
# ── 确保 app 包可导入 ────────────────────────────────
import sys
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
from app.core.database import Base
import app.models # noqa: F401 — 触发所有模型注册
config = context.config
# 从环境变量覆盖 DATABASE_URL
db_url = os.environ.get("DATABASE_URL")
if db_url:
config.set_main_option("sqlalchemy.url", db_url)
if config.config_file_name is not None:
fileConfig(config.config_file_name)
target_metadata = Base.metadata
def run_migrations_offline() -> None:
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:
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()