12.12

显示所有评论
{% for foo in ques.comments %}

<ul class="list-unstyled" style="width: 900px">
        {% for foo in 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.creat_time }}</span>
                <p>{{ foo.detail }}</p>
                <br>
            </li>
        {% endfor %}
    </ul>

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'))
    creat_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=creat_time.desc))
    author = db.relationship('User', backref=db.backref('comments'))

显示评论条数

{{ ques.comments|length }}

<a href="{{ url_for('usercenter',user_id=foo.author_id) }}">{{ foo.author.username }}评论：{{ foo.comments|length }}</a><br>

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 'base.html' %}
{% block title %}个人中心{% endblock %}
{% block main %}
 <div class="page-header">
     <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span> </h3>
     <ul class="list-group" style="padding-left: 0px; padding-right: 10px; box-shadow: rgba(0, 0, 0, 0.498039) 0px 0px 0px 0px;">
         {% for foo in questions %}
         <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>全部评论<span class="badge"></span></small> </h3>
     <ul class="list-group" style="padding-left: 0px; padding-right: 10px; box-shadow: rgba(0, 0, 0, 0.498039) 0px 0px 0px 0px;">
         {% 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 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">
        <li class="list-group-item">用户：{{ username }}</li>
        <li class="list-group-item">编号：</li>
         <li class="list-group-item">昵称：</li>
    </ul>
</div>
{% endblock %}

2.定义视图函数def usercenter(user_id):

@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.question,
        'comments':user.comments
    }
    return render_template('usercenter.html',**context)

3.向前端页面传递参数

xiangqing.html:

<a href="{{ url_for('usercenter',user_id=foo.author.id) }}">{{ foo.author.username }}</a>

4.页面显示相应数据

shouye.html:

<a href="{{ url_for('usercenter',user_id=foo.author_id) }}">{{ foo.username }}</a><br>