评论列表显示及排序，个人中心显示

<h4>评论:({{ ques.comments|length }})</h4>
        <ul class="list-unstyled">
            {% for foo in ques.comments %}
                <li class="list-group-item">
                    <a href="{{ url_for(‘selfinfo‘,user_id = foo.author.id) }}">{{ foo.author.username }}</a>
                    <span class="badge pull-right">{{ foo.create_time }}</span>
                    <p>{{ foo.detail }}</p>
                    <br>
                </li>
            {% endfor %}
        </ul>

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‘))
    create_time = db.Column(db.DateTime,default=datetime.now)
    detail = db.Column(db.Text, nullable=False)
    question = db.relationship(‘Question‘,backref=db.backref(‘comments‘,order_by=create_time.desc))
    author = db.relationship(‘User‘,backref=db.backref(‘comments‘))

 <div class="col-md-8 column" id="rgba1">
                <h3 align="center">问答区域</h3>
                <ul>
                    {% for foo in question %}
                        <li>
                            <span><img src="../static/img/touxiang.jpg " width="30px" alt=""></span><a href="{{ url_for(‘selfinfo‘,user_id = foo.author_id) }}">{{ foo.author.username }}</a>
                            <br>
                            <p>标题：<a href="{{ url_for(‘detail‘,question_id=foo.id) }}">{{ foo.title }}</a></p>
                            <br>
                            <p>内容：{{ foo.detail }}</p>
                            <span>评论数: ({{ foo.comments|length }})</span>
                            <span class="badge pull-right">{{ foo.create_time }}</span>
                            <hr>
                        </li>
                    {% endfor %}
                </ul>
            </div>

@app.route(‘/selfinfo/<user_id>‘)
@loginFirst
def selfinfo(user_id):
    user = User.query.filter(User.id==user_id).first()
    context = {
        ‘username‘:user.username,
        ‘questions‘:user.question,#用反向定义的question
        ‘comments‘:user.comments
    }

    return render_template(‘selfinfo.html‘,**context)

{% extends‘myweb.html‘ %}
{% block selfinfotitle %}个人页面{% endblock %}
{% block selfinfohead %}
    <link rel="stylesheet" type="text/css" href="../static/css/component.css"/>
    <script src="../static/js/regist.js"></script>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
{% endblock %}

{% block selfinfobody %}
<div class="container">
    <div class="row clearfix">
        <div class="col-md-2 column">
        </div>
        <div class="col-md-8 column"  id="rgba1">
              <h2 align="center">个人中心</h2>
    <p class="text-center"><small>{{ username }}</small></p>
        <hr>
        <h3 align="center">
            <small>全部问答</small>
        </h3>
        <ul class="list-unstyled">
            {% for foo in questions %}
                <li class="list-group-item">
                    <span class="glyphicon glyphicon-user"></span><a>{{ foo.author.username }}</a>
                    <p>标题：{{ foo.title }}</p>
                    <span class="badge pull-right">{{ foo.create_time }}</span>
                    <p>问答内容：{{ foo.detail }}</p>
                    <br>
                </li>
            {% endfor %}
        </ul>


        <h3 align="center">
            <small>全部评论</small>
        </h3>
        <ul class="list-unstyled">
            {% for foo in comments %}
                <li class="list-group-item">

                    <span class="badge pull-right">{{ foo.create_time }}</span>
                    <p>文章标题：{{ foo.question.title }}</p>
                    <p>评论内容：{{ foo.detail }}</p>
                    <span class="glyphicon glyphicon-user"></span><small ><a>{{ foo.author.username }}</a></small>
                    <br>
                </li>
            {% endfor %}
        </ul>


        <h3 align="center">
            <small>个人信息</small>
        </h3>
        <ul class="list-group">
            <li class="list-group-item"><span class="glyphicon glyphicon-user"></span>用户:{{ username }}</li>
            <li class="list-group-item">昵称</li>
            <li class="list-group-item">文章篇数:{{ questions|length }}</li>
        </ul>
        </div>
        <div class="col-md-2 column">
        </div>
    </div>
</div>


{% endblock %}