从首页问答标题到问答详情页

    1. 主PY文件写视图函数，带id参数。 
      @app.route('/detail/<question_id>')
      def detail(question_id):
          quest = 
          return render_template('detail.html', ques = quest) 
    2. 首页标题的标签做带参数的链接。
            {{ url_for('detail',question_id = foo.id) }}

    3. 在详情页将数据的显示在恰当的位置。 
      {{ ques.title}}
      {{ ques.id  }}{{  ques.creat_time }}
      {{ ques.author.username }} 
      {{ ques.detail }}

    4. 建立评论的对象关系映射：

      class Comment(db.Model):
          __tablename__='comment'

    5.  尝试实现发布评论。

      @app.route('/detail/<question_id>')
def detail(question_id):
       quest=Question.query.filter(Question.id==question_id).first()
       return render_template('detail.html',ques=quest)
      {% extends'base.html' %}
{% block title %}
    首页
{% endblock %}
{% block head %}
    <link rel="stylesheet" href="{{ url_for('static',filename='css/shouye.css')}}" type="text/css">
{% endblock %}
{% block main %}
<body>
<div class="content">
<p class="biaoti">发布的内容</p>
<ul class="list-group">
    {% for foo in question %}
      <li class="list-group-item">
        <span class="glyphicon-leaf" aria-hidden="true"></span>
      <img id="qu" src="{{ url_for('static',filename='images/title.png')}}">
        <a href = "{{url_for('detail',question_id=foo.id)}}">{{ foo.title }}</a>

        <p style="text-align: left">{{ foo.detail }}</p>
           <img id="qu" src="{{ url_for('static',filename='images/question.jpg')}}"> <a href = "">{{ foo.author.username }}</a>
    <br>
               <span class="badge" style="float: right;background-color: burlywood;border-radius: 5px">{{ foo.create_time }}</span>
</li>
    {% endfor %}
</ul>
</div>
</body>
{% endblock %}
      {% extends'base.html' %}
{% block title %}
    问答详情
{% endblock %}
{% block head %}
    <link rel="stylesheet" href="{{ url_for('static',filename='css/detail.css')}}" type="text/css">
{% endblock %}
{% block main %}

<div class="content">

    <h3>标题：{{ ques.title }}<br><br><small>作者：{{ ques.author.username }} <br>
        <span class="badge">发布时间：{{ ques.create_time }}</span> </small></h3>
<hr>
<p class="lead">内容：{{ ques.detail }}</p>
<hr>
</div>
{#    <form action="{{ url_for('/detail/<question_id>') }}" method="post">#}
       <textarea class="comment" rows="8" name="title" placeholder="写下你的评论：" name="comment"></textarea>
    <button class="button">发布 </button>
<span class="tcomment">评论：({{ ques.comments|length }})</span>
<ul class="list-group">
 {% for foo in question %}
      <li class="list-group-item">
        <span class="glyphicon-leaf" aria-hidden="true"></span>
      <img id="qu" src="{{ url_for('static',filename='images/title.png')}}">
        <a href = "#">{{ foo.author.username }}{{ foo.title }}</a>
               <span class="badge">{{ foo.create_time }}</span>
</li>
    {% endfor %}
</ul>

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

       

posted on 2017-12-07 13:07  087陆倩霞  阅读(105)  评论(0)  编辑  收藏  举报