数据库创建

models/source_link.py

@@ -0,0 +1,50 @@
+# my_project/models/source_link.py
+
+from typing import TYPE_CHECKING, Optional
+from sqlmodel import Field, Relationship, Column, func, DateTime
+from .base import BaseModel
+from datetime import datetime
+
+if TYPE_CHECKING:
+    from .file import File
+
+class SourceLink(BaseModel, table=True):
+    __tablename__ = 'source_links'
+
+    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")
+    
+    # 关系
+    file: "File" = Relationship(back_populates="source_links")