修复数据库构建问题
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@@ -1,15 +1,12 @@
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# ~/models/database.py
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from contextlib import asynccontextmanager
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import aiosqlite
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from datetime import datetime
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from typing import Optional
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from sqlmodel import SQLModel
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from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
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from sqlmodel.ext.asyncio.session import AsyncSession
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from sqlalchemy.orm import sessionmaker
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from typing import AsyncGenerator
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import warnings
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from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
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from sqlalchemy.orm import sessionmaker
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from sqlmodel import SQLModel
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from sqlmodel.ext.asyncio.session import AsyncSession
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from .migration import migration
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ASYNC_DATABASE_URL = "sqlite+aiosqlite:///data.db"
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@@ -19,161 +16,38 @@ engine: AsyncEngine = create_async_engine(
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echo=True,
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connect_args={
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"check_same_thread": False
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} if ASYNC_DATABASE_URL.startswith("sqlite") else None,
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} if ASYNC_DATABASE_URL.startswith("sqlite") else {},
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future=True,
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# pool_size=POOL_SIZE,
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# max_overflow=64,
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)
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_async_session_factory = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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_async_session_factory = sessionmaker(
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engine, class_=AsyncSession, expire_on_commit=False
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)
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# 数据库类
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class Database:
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# Database 初始化方法
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def __init__(
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self, # self 用于引用类的实例
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db_path: str = "data.db" # db_path 数据库文件路径，默认为 data.db
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self, # self 用于引用类的实例
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db_path: str = "data.db", # db_path 数据库文件路径，默认为 data.db
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):
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self.db_path = db_path
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@staticmethod
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@asynccontextmanager
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async def get_session() -> AsyncGenerator[AsyncSession, None]:
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"""FastAPI dependency to get a database session."""
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async with _async_session_factory() as session:
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yield session
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async def init_db(
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self,
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url: str = ASYNC_DATABASE_URL
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):
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async def init_db(self, url: str = ASYNC_DATABASE_URL):
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"""创建数据库结构"""
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async with engine.begin() as conn:
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await conn.run_sync(SQLModel.metadata.create_all)
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async with self.get_session() as session:
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await migration(session) # 执行迁移脚本
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async def add_object(self, key: str, name: str, icon: str = None, phone: str = None):
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"""
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添加新对象
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:param key: 序列号
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:param name: 名称
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:param icon: 图标
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:param phone: 电话
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"""
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async with aiosqlite.connect(self.db_path) as db:
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async with db.execute("SELECT 1 FROM fr_objects WHERE key = ?", (key,)) as cursor:
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if await cursor.fetchone():
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raise ValueError(f"序列号 {key} 已存在")
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now = datetime.now()
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now = now.strftime("%Y-%m-%d %H:%M:%S")
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await db.execute(
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"INSERT INTO fr_objects (key, name, icon, phone, create_at, status) VALUES (?, ?, ?, ?, ?, 'ok')",
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(key, name, icon, phone, now)
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)
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await db.commit()
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async def update_object(
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self,
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id: int,
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key: str = None,
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name: str = None,
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icon: str = None,
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status: str = None,
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phone: int = None,
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lost_description: Optional[str] = None,
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find_ip: Optional[str] = None,
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lost_time: Optional[str] = None):
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"""
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更新对象信息
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:param id: 对象ID
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:param key: 序列号
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:param name: 名称
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:param icon: 图标
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:param status: 状态
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:param phone: 电话
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:param lost_description: 丢失描述
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:param find_ip: 发现IP
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:param lost_time: 丢失时间
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"""
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async with aiosqlite.connect(self.db_path) as db:
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async with db.execute("SELECT 1 FROM fr_objects WHERE id = ?", (id,)) as cursor:
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if not await cursor.fetchone():
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raise ValueError(f"ID {id} 不存在")
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async with db.execute("SELECT 1 FROM fr_objects WHERE key = ? AND id != ?", (key, id)) as cursor:
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if await cursor.fetchone():
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raise ValueError(f"序列号 {key} 已存在")
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await db.execute(
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f"UPDATE fr_objects SET "
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f"key = COALESCE(?, key), "
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f"name = COALESCE(?, name), "
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f"icon = COALESCE(?, icon), "
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f"status = COALESCE(?, status), "
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f"phone = COALESCE(?, phone), "
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f"context = COALESCE(?, context), "
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f"find_ip = COALESCE(?, find_ip), "
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f"lost_at = COALESCE(?, lost_at) "
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f"WHERE id = ?",
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(key, name, icon, status, phone, lost_description, find_ip, lost_time, id)
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)
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await db.commit()
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async def get_object(self, id: int = None, key: str = None):
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"""
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获取对象
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:param id: 对象ID
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:param key: 序列号
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"""
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async with aiosqlite.connect(self.db_path) as db:
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if id is not None or key is not None:
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async with db.execute(
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"SELECT * FROM fr_objects WHERE id = ? OR key = ?", (id, key)
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) as cursor:
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return await cursor.fetchone()
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else:
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async with db.execute("SELECT * FROM fr_objects") as cursor:
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return await cursor.fetchall()
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async def delete_object(self, id: int):
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"""
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删除对象
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:param id: 对象ID
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"""
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async with aiosqlite.connect(self.db_path) as db:
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await db.execute("DELETE FROM fr_objects WHERE id = ?", (id,))
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await db.commit()
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async def set_setting(self, name: str, value: str):
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"""
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设置配置项
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:param name: 配置项名称
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:param value: 配置项值
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"""
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async with aiosqlite.connect(self.db_path) as db:
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await db.execute(
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"INSERT OR REPLACE INTO fr_settings (name, value) VALUES (?, ?)",
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(name, value)
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)
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await db.commit()
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async def get_setting(self, name: str):
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"""
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获取配置项
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:param name: 配置项名称
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"""
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async with aiosqlite.connect(self.db_path) as db:
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async with db.execute(
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"SELECT value FROM fr_settings WHERE name = ?", (name,)
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) as cursor:
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result = await cursor.fetchone()
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return result[0] if result else None
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# For internal use, create a temporary context manager
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get_session_cm = asynccontextmanager(self.get_session)
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async with get_session_cm() as session:
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await migration(session) # 执行迁移脚本
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