from app.models import db from flask_login import UserMixin from werkzeug.security import generate_password_hash, check_password_hash from datetime import datetime class User(UserMixin, db.Model): __tablename__ = 'users' user_id = db.Column(db.Integer, primary_key=True) student_number = db.Column(db.String(20), unique=True, nullable=False, index=True) password_hash = db.Column(db.String(255), nullable=False) role = db.Column(db.Enum('student', 'admin'), default='student') is_active = db.Column(db.Boolean, default=True) last_login = db.Column(db.DateTime) created_at = db.Column(db.DateTime, default=datetime.utcnow) def get_id(self): return str(self.user_id) def set_password(self, password): self.password_hash = generate_password_hash(password) def check_password(self, password): return check_password_hash(self.password_hash, password) def is_admin(self): return self.role == 'admin' def __repr__(self): return f''