评论列表显示及排序，个人中心显示

显示所有评论
{% for foo in ques.comments %

{% for foo in 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>{{ foo.detail }}</p>

所有评论排序
uquestion = db.relationship('Question', backref=db.backref('comments', order_by=creat_time.desc))

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('Ques',backref = db.backref('comments',order_by=create_time.desc))
    author = db.relationship('User',backref = db.backref('comments'))

显示评论条数
{{ ques.comments|length }}

<div class="row clearfix">
                            <h4>评论：{{ ques.comments|length }}</h4>
                        </div>

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

{% extends 'navigation.html' %}
{% block title %}个人中心{% endblock %}
{% block main %}
    <div class="page-header">
        <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ username }}<br>
            <small>全部问答<span class="badge"></span></small>
        </h3>
        <ul class="list-group" style="margin: 10px">
            {% for foo in question %}
                <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>{{ foo.detail }}</p>
                </li>
            {% endfor %}
        </ul>
    </div>
 
    <div class="page-header">
        <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ user }}<br>
            <small>全部评论<span class="badge"></span></small>
        </h3>
        <ul class="list-group" style="margin: 10px">
            {% for foo in 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>{{ 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 style="padding-left: 0px;margin-bottom: 0px;">
            <li class="list-group-item" style=" 900px">用户：{{ username }}</li>
            <li class="list-group-item" style=" 900px">编号：</li>
            <li class="list-group-item" style=" 900px">昵称：</li>
        </ul>
    </div>
 
{% endblock %}

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