评论列表显示及排序，个人中心显示

1. 显示所有评论
   {% for foo in ques.comments %}
   
   
2. 所有评论排序
   uquestion = db.relationship('Question', backref=db.backref('comments', order_by=creat_time.desc))
   
   
3. 显示评论条数
   {{ ques.comments|length }}

   <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('usercenter',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>

4. 完成个人中心

1.个人中心的页面布局（html文件及相应的样式文件）

2.定义视图函数def usercenter(user_id):

3.向前端页面传递参数

4.页面显示相应数据

发布的全部问答

发布的全部评论

个人信息

5.各个页面链接到个人中心      

html

{% extends 'base.html' %}
{% block title %}个人中心 {% endblock%}
{% block main%}
 
<div class="page-header">
    <h3>{{username}} </h3>
    <br>全部问答<span class="badge"></span>
    <ul class="list-group" style="">
        {% for foo in user.question %}
            <li class="list-group-item">
                <a href="#">{{foo.author.username }}</a>
                <span class="badge">{{foo.creat_time}}</span>
                <p style="">{{foo.detail}}</p>
            </li>
    {% endfor %}
    </ul>
</div>
 
<div class="page-header">
     <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>
    {{user}} <br> <small>个人信息><span class="badge"></span> </small></h3>
    <ul class="list-group" style="">
          {% for foo in user.comments %}
            <li class="list-group-item">
                <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span>
                <a href="#">{{foo.author.username }}</a>
                <span class="badge">{{foo.creat_time}}</span>
                <p style="">{{foo.detail}}</p>
            </li>
    {% endfor %}
    </ul>
</div>
 
<div class="page-header">
     <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>
    {{user}} <br> <small>个人信息><span class="badge"></span> </small></h3>
      <ul class="list-group" style="">
          <li class="list-group-item">用户：{{username}}</li>
          <li class="list-group-item">编号：</li>
          <li class="list-group-item">文章篇：</li>
      </ul>
</div>
 
{% endblock %}

py

@app.route('/usercenter/<user_id>')
@log
def usercenter(user_id):
    user=User.query.filter(User.id==user_id).first()
    mycontext={
        'username':user.username,
        'questions':user.question,
        'comments':user.comments,
    }
    return render_template('usercenter.html',**mycontext)