shell中输入
>>> u = User(email='xxxxxxxxx@qq.com', username='john', password='cat') >>> db.session.add(u) >>> db.session.commit()
shell中返回
OperationalError: (sqlite3.OperationalError) table users has no column named email [SQL: u'INSERT INTO users (email, username, password_hash, role_id) VALUES (?, ?, ?, ?)'] [parameters: ('xxxxxxxxxxx@qq.com', 'john', 'pbkdf2:sha1:1000$khpKtr7A$1813eebe6db38296c170b160cff6c92f41129ecd', None)]
感觉models.py里数据表中数据添加email这个字段了啊
models.py里代码如下:
from werkzeug.security import generate_password_hash,check_password_hash from flask.ext.login import UserMixin from . import db,login_manager class Role(db.Model): __tablename__ = 'roles' id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(64), unique=True) users = db.relationship('User', backref='role', lazy='dynamic') def __repr__(self): return '' % self.name class User(UserMixin,db.Model): __tablename__ = 'users' id = db.Column(db.Integer, primary_key=True) email=db.Column(db.String(64),unique=True,index=True) username = db.Column(db.String(64), unique=True, index=True) password_hash=db.Column(db.String(128)) role_id = db.Column(db.Integer, db.ForeignKey('roles.id')) @property def password(self): raise AttributeError('password is not a readable attribute') @password.setter def password(self,password): self.password_hash=generate_password_hash(password) def verify_password(self,password): return check_password_hash(self.password_hash,password) def __repr__(self): return ' ' % self.username @login_manager.user_loader def load_user(user_id): return User.query.get(int(user_id))
更新表后,运行db.commit.rollback(),然后再db.session.commit()
增加email字段时,你有相应更新表吗?