数据库时间日志迁移至 BaseModel

models/source_link.py

@@ -13,35 +13,6 @@ class SourceLink(BaseModel, table=True):
 
     name: str = Field(max_length=255, description="链接名称")
     downloads: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, description="通过此链接的下载次数")
-    created_at: Optional[datetime] = Field(
-        default=None,
-        sa_column=Column(
-            DateTime,
-            nullable=False,
-            server_default=func.now(),
-            comment="创建时间",
-        ),
-    )
-
-    updated_at: Optional[datetime] = Field(
-        default=None,
-        sa_column=Column(
-            DateTime,
-            nullable=False,
-            server_default=func.now(),
-            onupdate=func.now(),
-            comment="更新时间",
-        ),
-    )
-    
-    delete_at: Optional[datetime] = Field(
-        default=None,
-        sa_column=Column(
-            DateTime,
-            nullable=True,
-            comment="删除时间",
-        ),
-    )
     
     # 外键
     file_id: int = Field(foreign_key="files.id", index=True, description="关联的文件ID")