完成评论功能

@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))