from functools import wraps
def loginFirst(func): #参数是函数
@wraps(func)
def wrapper(*args, ** kwargs): #定义个函数将其返回
#要求登录
return func(*args, ** kwargs)
return wrapper #返回一个函数
def loginFirst(func):
@wraps(func)
def wrapper(*args, ** kwargs):
if session.get(‘user‘):
return func(*args, ** kwargs)
else:
return redirect(url_for(‘login‘))
return wrapper
@app.route(‘/question/‘,methods=[‘GET‘,‘POST‘])
@loginFirst
def question():
@app.route(‘/questions/‘,methods=[‘GET‘,‘POST‘])
@loginFirst
def questions():
if request.method == ‘GET‘:
return render_template(‘questions.html‘)
else:
title = request.form.get(‘title‘)
detail = request.form.get(‘detail‘)
author_id = User.query.filter(User.username == session.get(‘user‘)).first().id
questions = Question(title=title, detail=detail, author_id=author_id)
db.session.add(questions)
db.session.commit()
return redirect(url_for(‘index‘))
class Question(db.Model):
保存到数据库。
重定向到首页。
class Question(db.Model):
__tablename__ =‘questions‘
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
title=db.Column(db.String(100),nullable=False)
detail=db.Column(db.Text,nullable=False)
create_time=db.Column(db.DateTime,default=datetime.now)
author_id=db.Column(db.Integer,db.ForeignKey(‘user.id‘)
author=db.relationship(‘User‘,backref=db.backref(‘questions‘))
原文：http://www.cnblogs.com/BerylF/p/7912687.html