完成评论功能

@app.route(‘/comments‘,methods=["POST"])
@login_first
def comments():
    comment = request.form.get("detail1")
    author_id = Question.query.filter(User.username == session.get(‘user‘)).first().id
    ques_id = request.form.get("question_id")
    comm = Comment(detail=comment, author_id=author_id,question_id=ques_id)
    db.session.add(comm)
    db.session.commit()
    return redirect(url_for(‘detail‘,question_id=ques_id))

<form action="{{ url_for("comments") }}" method="post">
            <div>

                <textarea  style="width: 400px"  id="xiang" rows="5" name="detail1" placeholder="请输入您的评论"></textarea><br>
                <input style="display: none" value="{{ ques.id }}" name="question_id"/>
                <input  type="submit" value="发送" style="width:45px;height:25px;font-size:15px">
                </div>
        </form>
            <div>
                <h4 >评论:({{ ques.comment|length }})</h4>