初始提交：人事共享服务中心钉钉登录功能

models.py

@@ -0,0 +1,38 @@
+from datetime import datetime
+from flask_sqlalchemy import SQLAlchemy
+from flask_login import UserMixin
+
+db = SQLAlchemy()
+
+class User(UserMixin, db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(80), unique=True, nullable=False)
+    role = db.Column(db.String(20), nullable=False, default='user')
+    contact = db.Column(db.String(100))
+    dingtalk_userid = db.Column(db.String(100), unique=True, nullable=False)
+    dingtalk_name = db.Column(db.String(100))
+    dingtalk_dept = db.Column(db.String(200))
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    
+    def is_admin(self):
+        return self.role == 'admin'
+
+class Demand(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    content = db.Column(db.Text, nullable=False)
+    branch = db.Column(db.String(50), nullable=False)
+    contact = db.Column(db.String(100), nullable=False)
+    is_public = db.Column(db.Boolean, default=True)
+    answer = db.Column(db.Text)
+    answered_at = db.Column(db.DateTime)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow)
+    
+    user = db.relationship('User', backref=db.backref('demands', lazy=True))
+    
+    def can_edit(self, current_user):
+        if current_user.is_admin():
+            return True
+        return self.user_id == current_user.id