61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
"""数据库配置"""
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from sqlalchemy import create_engine, text
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from .config import DATABASE_URL
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engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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def get_db():
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"""获取数据库会话"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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def _migrate_db():
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"""简单的数据库迁移：为旧表添加缺失的列"""
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migrations = [
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("tasks", "branch", "VARCHAR DEFAULT 'main'"),
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("tasks", "error_category", "VARCHAR"),
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]
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with engine.connect() as conn:
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for table, column, col_type in migrations:
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try:
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conn.execute(text(f"ALTER TABLE {table} ADD COLUMN {column} {col_type}"))
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conn.commit()
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except Exception:
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pass # 列已存在则忽略
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def _seed_admin():
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"""初始化管理员账号（从 .env 配置）"""
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from .models import User
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from .config import ADMIN_USERNAME, ADMIN_PASSWORD
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import hashlib
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db = SessionLocal()
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try:
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if not db.query(User).filter(User.username == ADMIN_USERNAME).first():
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pw_hash = hashlib.sha256(ADMIN_PASSWORD.encode()).hexdigest()
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db.add(User(id="admin-001", username=ADMIN_USERNAME, password_hash=pw_hash, is_admin=True))
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db.commit()
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finally:
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db.close()
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def init_db():
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"""初始化数据库"""
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# Load model declarations before create_all so a standalone startup creates every table.
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from . import models # noqa: F401
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Base.metadata.create_all(bind=engine)
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_migrate_db()
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_seed_admin()
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