数据库创建

models/tag.py

@@ -0,0 +1,54 @@
+# my_project/models/tag.py
+
+from typing import Optional, TYPE_CHECKING
+from sqlmodel import Field, Relationship, UniqueConstraint, Column, func, DateTime
+from .base import BaseModel
+from datetime import datetime
+
+if TYPE_CHECKING:
+    from .user import User
+
+class Tag(BaseModel, table=True):
+    __tablename__ = 'tags'
+    __table_args__ = (UniqueConstraint("name", "user_id", name="uq_tag_name_user"),)
+
+    name: str = Field(max_length=255, description="标签名称")
+    icon: Optional[str] = Field(default=None, max_length=255, description="标签图标")
+    color: Optional[str] = Field(default=None, max_length=255, description="标签颜色")
+    type: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, description="标签类型: 0=手动, 1=自动")
+    expression: Optional[str] = Field(default=None, description="自动标签的匹配表达式")
+    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
+    user_id: int = Field(foreign_key="users.id", index=True, description="所属用户ID")
+    
+    # 关系
+    user: "User" = Relationship(back_populates="tags")