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


#db.create_all()
{% extends 'base.html' %} }
{% block title %}详情页{% endblock %}



{% block main %}

<ul class="list-group">
                           <a  class="author" href="">{{ ques.author.username }}</a>
                           <br>
                       <a class="title"  href="">{{ ques.title }}</a>
                               <br>
                               <span >{{ ques.create_time }}</span>
                       <p class="abstract">{{ ques.detail }}</p>

                       <form action="">
                       <div class="form-group">
                       <textarea class="inputFramework" rows="6" id="details" name="detail"></textarea>

                       </div>
                           <button type="submit" class="btn btn-default">发送</button>
                               </form>

                       </ul>

<h4>评论：({{ ques.comments|length }})</h4>
{% for foo in comment %}
    <li class="list-group-item">
        <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
        <p class="detail">{{ foo.detail }}</p>
        <a href="#">{{ foo.author.username }} </a>
        <span class="badge">{{ foo.creat_time }}</span>
    </li>
</div> </div>
{% endblock %}
{% extends'base.html' %}
    {% block title %}
    首页
    {% endblock %}
{% block head %}
    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/shouye.css') }}">
{% endblock %}
{% block main %}
<body>


<ul class="list-group">
    {% for foo in questions %}
            <li style="padding-left: 0px;padding-right: 10px;box-shadow: #cccccc" class="list-group-item">
                <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
                <a href="{{ url_for('detail',question_id=foo.id) }}" class="title">{{ foo.title }}</a>
                <p class="detail">{{ foo.detail }}</p>
                <span class="glyphicon glyphicon-user" aria-hidden="true"></span>
                <a href="">{{ foo.author.username }} 评论：({{ foo.comments|length }})</a><br>

                <span class="badge">{{ foo.creat_time }}</span>


            </li>
    {% endfor %}
        </ul>

</body>

{% endblock %}

 

posted on 2017-12-07 11:46  097吴嘉玲  阅读(101)  评论(0)    收藏  举报

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