初始版本

backend/app/models/upload.py

@@ -0,0 +1,25 @@
+"""
+文件上传模型
+"""
+from datetime import datetime
+from typing import Optional
+from sqlmodel import SQLModel, Field, Relationship
+from .user import User
+
+
+class Upload(SQLModel, table=True):
+    """文件上传记录表"""
+    __tablename__ = "uploads"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    filename: str = Field(max_length=200)
+    stored_path: str = Field(max_length=300)
+    file_size: int  # 字节数
+    mime_type: str = Field(max_length=100)
+    uploaded_at: datetime = Field(default_factory=datetime.now)
+    expires_at: Optional[datetime] = Field(default=None)
+    user_id: int = Field(foreign_key="users.id", index=True)
+    
+    # 关系
+    user: Optional[User] = Relationship()
+