权限管理，没有页面修改之前版本

inventory-backend/app/models/system.py

@@ -1,14 +1,17 @@
-# app/models/system.py
+# inventory-backend/app/models/system.py
 from app.extensions import db
 from werkzeug.security import generate_password_hash, check_password_hash
 from datetime import datetime
 
 
+# ==========================================
+# 1. 系统用户表
+# ==========================================
 class SysUser(db.Model):
     """
     系统用户表
     对应数据库: sys_user
-    username 字段存储格式约定: "真实姓名/登录账号" (例如: 张三/zhangsan)
+    username 字段存储格式约定: "真实姓名/登录账号" (例如: 张三/zhangsan01)
     """
     __tablename__ = 'sys_user'
 
@@ -19,8 +22,7 @@ class SysUser(db.Model):
     role = db.Column(db.String(50))
     status = db.Column(db.String(20), default='active')
     password_hash = db.Column(db.Text)
-
-    # created_at 已在数据库脚本中移除，此处不再定义
+    created_at = db.Column(db.DateTime, default=datetime.now)
 
     def set_password(self, password):
         """生成加密密码"""
@@ -45,23 +47,27 @@ class SysUser(db.Model):
             parts = raw_name.split('/')
             real_name = parts[0]
             acc_id = parts[1]
-            # 格式化为前端展示格式: 张三(zhangsan)
+            # 格式化为前端展示格式: 张三(zhangsan01)
             display_name = f"{real_name}({acc_id})"
             # 单独提取账号ID (如果前端需要单独用)
             account_id = acc_id
 
         return {
             'id': self.id,
-            'username': display_name,  # 列表显示: 张三(zhangsan)
+            'username': display_name,  # 列表显示: 张三(zhangsan01)
             'raw_username': self.username,  # 原始数据
-            'account_id': account_id,  # 纯账号ID: zhangsan
+            'account_id': account_id,  # 纯账号ID: zhangsan01
             'email': self.email,
             'department': self.department,
             'role': self.role,
-            'status': self.status
+            'status': self.status,
+            'created_at': self.created_at.isoformat() if self.created_at else None
         }
 
 
+# ==========================================
+# 2. 系统日志表
+# ==========================================
 class SysLog(db.Model):
     """
     系统操作日志表
@@ -88,4 +94,58 @@ class SysLog(db.Model):
             'module_name': self.module_name,
             'action_type': self.action_type,
             'description': self.description
-        }
+        }
+
+
+# ==========================================
+# 3. 权限管理模型 (RBAC) - [新增]
+# ==========================================
+
+class SysMenu(db.Model):
+    """系统菜单/页面表"""
+    __tablename__ = 'sys_menu'
+    id = db.Column(db.Integer, primary_key=True)
+    parent_id = db.Column(db.Integer, default=0)
+    name = db.Column(db.String(50), nullable=False)
+    code = db.Column(db.String(100), unique=True, nullable=False)
+    path = db.Column(db.String(200))
+    sort_order = db.Column(db.Integer, default=0)
+    is_visible = db.Column(db.Boolean, default=True)
+
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'code': self.code,
+            'path': self.path,
+            'type': 'menu'  # 前端树形控件图标判断用
+        }
+
+
+class SysElement(db.Model):
+    """页面元素/列定义表"""
+    __tablename__ = 'sys_element'
+    id = db.Column(db.Integer, primary_key=True)
+    menu_code = db.Column(db.String(100), db.ForeignKey('sys_menu.code'))
+    name = db.Column(db.String(100), nullable=False)
+    code = db.Column(db.String(100), nullable=False)  # 如: unit_price
+    element_type = db.Column(db.String(20), default='column')
+
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'code': self.code,
+            'menu_code': self.menu_code,
+            'type': 'element',
+            'element_type': self.element_type
+        }
+
+
+class SysRolePermission(db.Model):
+    """角色权限关联表"""
+    __tablename__ = 'sys_role_permission'
+    id = db.Column(db.Integer, primary_key=True)
+    role_code = db.Column(db.String(50), nullable=False)
+    target_code = db.Column(db.String(100), nullable=False)  # menu_code 或 element_code
+    type = db.Column(db.String(20), nullable=False)  # 'menu' 或 'element'