完成数据库设置表的增删改查

models/database.py

@@ -4,6 +4,7 @@ from sqlmodel import SQLModel
 from sqlalchemy.ext.asyncio import create_async_engine
 from sqlmodel.ext.asyncio.session import AsyncSession
 from sqlalchemy.orm import sessionmaker
+from typing import AsyncGenerator
 
 ASYNC_DATABASE_URL = "sqlite+aiosqlite:///database.db"
 
@@ -20,12 +21,13 @@ engine = create_async_engine(
 
 _async_session_factory = sessionmaker(engine, class_=AsyncSession)
 
-async def get_session():
+async def get_session() -> AsyncGenerator[AsyncSession, None]:
     async with _async_session_factory() as session:
         yield session
 
-async def init_db():
-    """初始化数据库"""
-    # 创建所有表
+async def init_db(
+    url: str = ASYNC_DATABASE_URL
+):
+    """创建数据库结构"""
     async with engine.begin() as conn:
         await conn.run_sync(SQLModel.metadata.create_all)

models/group.py

@@ -40,5 +40,52 @@ class Group(BaseModel, table=True):
     )
 
     # 关系：一个组可以有多个用户
-    users: List["User"] = Relationship(back_populates="group")
-    previous_users: List["User"] = Relationship(back_populates="previous_group")
+    users: List["User"] = Relationship(
+        back_populates="group",
+        sa_relationship_kwargs={"foreign_keys": "User.group_id"}
+    )
+    previous_users: List["User"] = Relationship(
+        back_populates="previous_group",
+        sa_relationship_kwargs={"foreign_keys": "User.previous_group_id"}
+    )
+    
+    async def add_group(self, name: str, policies: Optional[str] = None, max_storage: int = 0, 
+                     share_enabled: bool = False, web_dav_enabled: bool = False, 
+                     speed_limit: int = 0, options: Optional[str] = None) -> "Group":
+        """
+        向数据库内添加用户组。
+        
+        :param name: 用户组名
+        :type name: str
+        :param policies: 允许的策略ID列表，逗号分隔，默认为 None
+        :type policies: Optional[str]
+        :param max_storage: 最大存储空间（字节），默认为 0
+        :type max_storage: int
+        :param share_enabled: 是否允许创建分享，默认为 False
+        :type share_enabled: bool
+        :param web_dav_enabled: 是否允许使用WebDAV，默认为 False
+        :type web_dav_enabled: bool
+        :param speed_limit: 速度限制 (KB/s), 0为不限制，默认为 0
+        :type speed_limit: int
+        :param options: 其他选项 (JSON格式)，默认为 None
+        :type options: Optional[str]
+        :return: 新创建的用户组对象
+        :rtype: Group
+        """
+        
+        from .database import get_session
+        session = get_session()
+        
+        new_group = Group(
+            name=name,
+            policies=policies,
+            max_storage=max_storage,
+            share_enabled=share_enabled,
+            web_dav_enabled=web_dav_enabled,
+            speed_limit=speed_limit,
+            options=options
+        )
+        session.add(new_group)
+        
+        session.commit()
+        session.refresh(new_group)

models/migration.py

@@ -96,4 +96,14 @@ Neue',Helvetica,Arial,sans-serif; box-sizing: border-box; font-size: 14px; verti
     Setting(name="pwa_display", value="standalone", type="pwa"),
     Setting(name="pwa_theme_color", value="#000000", type="pwa"),
     Setting(name="pwa_background_color", value="#ffffff", type="pwa"),
-]
+]
+
+async def init_default_settings() -> None:
+    from .setting import Setting
+    
+    for setting in default_settings:
+        await Setting.add(
+            type=setting.type, 
+            name=setting.name, 
+            value=setting.value
+        )

models/setting.py

@@ -71,15 +71,127 @@ class Setting(BaseModel, table=True):
         ),
     )
 
-async def add(
-    type: SETTINGS_TYPE,
-    name: str,
-    value: Optional[str] = None
-):
-    pass
+    async def add(
+        type: SETTINGS_TYPE = None,
+        name: str = None,
+        value: Optional[str] = None
+    ) -> None:
+        """
+        向数据库内添加设置项目。
+        
+        :param type: 设置类型/分组
+        :type type: SETTINGS_TYPE
+        :param name: 设置项名称
+        :type name: str
+        :param value: 设置值，默认为 None
+        :type value: Optional[str]
+        """
+        from .database import get_session
+        
+        if isinstance(value, (dict, list)):
+            value = str(value)
+        
+        async for session in get_session():
+            new_setting = Setting(type=type, name=name, value=value)
+            session.add(new_setting)
+        
+            await session.commit()
 
-async def get(
-    type: SETTINGS_TYPE,
-    name: str
-):
-    pass
+    async def get(
+        type: SETTINGS_TYPE,
+        name: str
+    ) -> Optional['Setting']:
+        """
+        从数据库中获取指定类型和名称的设置项。
+        
+        :param type: 设置类型/分组
+        :type type: SETTINGS_TYPE
+        :param name: 设置项名称
+        :type name: str
+        
+        :return: 返回设置项对象，如果不存在则返回 None
+        :rtype: Optional[Setting]
+        """
+        from .database import get_session
+        from sqlmodel import select
+        
+        async for session in get_session():
+            statment = select(Setting).where(
+                Setting.type == type, 
+                Setting.name == name
+            )
+            
+            result = await session.exec(statment)
+            return result.one_or_none()
+    
+    async def set(
+        type: SETTINGS_TYPE,
+        name: str,
+        value: Optional[str] = None
+    ) -> None:
+        """
+        更新指定类型和名称的设置项的值。
+        
+        :param type: 设置类型/分组
+        :type type: SETTINGS_TYPE
+        :param name: 设置项名称
+        :type name: str
+        :param value: 新的设置值，默认为 None
+        :type value: Optional[str]
+        
+        :raises ValueError: 如果设置项不存在，则抛出异常
+        """
+        from .database import get_session
+        from sqlmodel import select
+        
+        if isinstance(value, (dict, list)):
+            value = str(value)
+        
+        async for session in get_session():
+            statment = select(Setting).where(
+                Setting.type == type, 
+                Setting.name == name
+            )
+            
+            result = await session.exec(statment)
+            setting = result.one_or_none()
+            
+            if not setting:
+                raise ValueError(f"Setting {type}.{name} does not exist.")
+            
+            # 设置项存在，更新数据
+            setting.value = value
+            await session.commit()
+    
+    async def delete(
+        type: SETTINGS_TYPE,
+        name: str
+    ) -> None:
+        """
+        删除指定类型和名称的设置项。
+        
+        :param type: 设置类型/分组
+        :type type: SETTINGS_TYPE
+        :param name: 设置项名称
+        :type name: str
+        
+        :raises ValueError: 如果设置项不存在，则抛出异常
+        """
+        from .database import get_session
+        from sqlmodel import select, delete
+        
+        async for session in get_session():
+            statment = select(Setting).where(
+                Setting.type == type, 
+                Setting.name == name
+            )
+            
+            result = await session.exec(statment)
+            setting = result.one_or_none()
+            
+            if not setting:
+                raise ValueError(f"Setting {type}.{name} does not exist.")
+            
+            # 设置项存在，删除数据
+            await session.delete(setting)
+            await session.commit()

models/user.py

@@ -69,8 +69,14 @@ class User(BaseModel, table=True):
     previous_group_id: Optional[int] = Field(default=None, foreign_key="groups.id", description="之前的用户组ID（用于过期后恢复）")
     
     # 关系
-    group: "Group" = Relationship(back_populates="users")
-    previous_group: Optional["Group"] = Relationship(back_populates="previous_users")
+    group: "Group" = Relationship(
+        back_populates="users",
+        sa_relationship_kwargs={"foreign_keys": "User.group_id"}
+    )
+    previous_group: Optional["Group"] = Relationship(
+        back_populates="previous_users",
+        sa_relationship_kwargs={"foreign_keys": "User.previous_group_id"}
+    )
     
     downloads: list["Download"] = Relationship(back_populates="user")
     files: list["File"] = Relationship(back_populates="user")