Scaffold V2 backend foundation

ai_knowledge_base_v2/apps/backend/app/models/admin.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+from datetime import datetime
+
+from sqlalchemy import BigInteger, DateTime, ForeignKey, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import Base, TimestampMixin
+
+
+class Role(Base, TimestampMixin):
+    __tablename__ = "sys_role"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    code: Mapped[str] = mapped_column(String(50), unique=True, index=True, nullable=False)
+    name: Mapped[str] = mapped_column(String(50), nullable=False)
+    remark: Mapped[str | None] = mapped_column(String(255), nullable=True)
+
+    admins: Mapped[list["Admin"]] = relationship("Admin", back_populates="role")
+
+
+class Admin(Base, TimestampMixin):
+    __tablename__ = "sys_admin"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    username: Mapped[str] = mapped_column(String(50), unique=True, index=True, nullable=False)
+    password: Mapped[str] = mapped_column(String(255), nullable=False)
+    name: Mapped[str] = mapped_column(String(50), nullable=False)
+    role_id: Mapped[int | None] = mapped_column(ForeignKey("sys_role.id"), nullable=True)
+    status: Mapped[int] = mapped_column(default=1, nullable=False)
+    last_login_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
+
+    role: Mapped[Role | None] = relationship("Role", back_populates="admins")