1、定义评论的视图函数
@app.route(‘/comment/‘,methods=[‘POST‘])
def comment()：
读取前端页面数据，保存到数据库中
@app.route(‘/comment/‘,methods=[‘POST‘])
@loginFirst
def comment():
comment = request.form.get(‘new_comment‘)
ques_id = request.form.get(‘question_id‘)
auth_id = User.query.filter(User.username == session.get(‘user‘)).first().id
comm = Comment(author_id=auth_id, question_id=ques_id, detail=comment)
db.session.add(comm)
db.session.commit()
return redirect(url_for(‘detail‘,question_id=ques_id))
2、用<input type="hidden" 方法获取前端的"question_id"
<input type="hidden" name="question_id" value="{{ ques.id }}">
3、显示评论次数
4、要求评论前登录
5、尝试实现详情页面下的评论列表显示
class Comment(db.Model):
__tablename__ = ‘comment‘
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
author_id = db.Column(db.Integer, db.ForeignKey(‘user.id‘))
question_id = db.Column(db.Integer, db.ForeignKey(‘question.id‘))
creat_time = db.Column(db.DateTime, default=datetime.now)
detail = db.Column(db.Text, nullable=False)
question = db.relationship(‘Question‘, backref=db.backref(‘comments‘))
author = db.relationship(‘User‘, backref=db.backref(‘comments‘))
@login_re
原文：http://www.cnblogs.com/018linbin/p/8006723.html