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 %}
{% for foo in comment %} <ul style="padding-left: 0px;margin-bottom: 0px;"> <li style="width: 900px"> <a href="{{ url_for('usercenter',user_id = foo.author.id) }}">{{ foo.author.username }}</a> <span class="badge">评论时间:{{ foo.creat_time }}</span> <p>{{ foo.detail }}</p> </li> </ul> {% endfor %}
2、所有评论排序
uquestion = db.relationship('Question', backref=db.backref('comments', order_by=creat_time.desc))
question = 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：({{ quest.comments|length }})</h4>
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
<!DOCTYPE html>
<html lang="en">
<head>
{% extends 'admin.html' %}
<meta charset="UTF-8">
<title>
{% block title %}
用户中心
{% endblock %}
</title>
{% block head %}
{% endblock %}
</head>
<body>
{% block body %}
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h3>{{ username }}><br>
<small>全部问答
<span class="badge"></span></small>
</h3>
<ul>
{% for foo in question %}
<li>
<a href="#">{{ foo.username }}</a>
<span class="badge">{{ foo.creat_time }}</span>
<p>{{ foo.detail }}</p>
</li>
{% endfor %}
</ul>
</div>
</div>
</div>
<div>
<h3>{{ username }}><br>
<small>全部评论
<span class="badge"></span></small>
</h3>
{% for foo in comments %}
<ul style="padding-left: 0px;margin-bottom: 0px;">
<li style="width: 800px">
<a href="">{{ foo.author.username }}</a>
<span class="badge">{{ foo.creat_time }}</span>
<p>{{ foo.detail }}</p>
</li>
{% endfor %}
</ul>
</div>
<div>
<h3>{{ user }}<br>
<small>个人信息</small>
</h3>
<ul style="padding-left: 0px;margin-bottom: 0px;">
<li>用户：</li>
<li>编号：</li>
<li>昵称：</li>
</ul>
</div>
</div>
{% endblock %}
</body>
</html>
@app.route('/usercenter/<user_id>')
@loginFirst
def usercenter(user_id):
user = User.query.filter(User.id == user_id).first()
context = {
'username':user.username,
'question':user.question,
'comments':user.comments
}
return render_template('usercenter.html',**context)
5、各个页面链接到个人中心
<div class="meta">
<a class="collection-tag" target="_blank" href="/c/1hjajt">{{ biaoqian }}</a>
<a href="{{ url_for('usercenter',user_id = foo.author_id) }}">{{ foo.author.username }}评论：({{ foo.comments|length}})</a>
</div>
